Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

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“Invent a New India Using Knowledge”

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“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

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“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 7348-3 (2003): Dental Vocabulary, Part 3: DentalInstruments [MHD 8: Dentistry]

IS 7348( Part 3 ) :2003ISO 1942-3:1989

$TT?dk? J?’F75

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Indian Standard

DENTAL VOCABULARYPART 3 DENTAL INSTRUMENTS

( Second Revision)

ICS 01.040.11;1 1.060.01

@BIS 2003

BUREA4J OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

March 2003 Price Group 7

Dentistry Sectional Committee, MHD 8

NATIONAL FOREWORD

This Indian Standard ( Part 3 ) ( Second Revision ) which is identical with 1S0 1942-3:1989 ‘Dentalvocabulary - Part 3: Dental instruments’ issued by the International Organization40r Standardization( ISO ) was adopted by the Bureau of Indian Standards on the recommendations of the DentistrySectional Committee and approval of the Medical Equipment and Hospital Planning Division Council.

This standard was first published in 1975 as Part 2 and revised in 1982 to align it with the correspondingISO 1942-1 : 1977-and ISO 1942-3:1977. Its second revision has been undertaken to adopt revisedISO 1942-3:1989 with a view to cover the latest terminology followed at the international level.

This standard under-the general title ‘Dental Vocabulary’ is being published in five parts. Other parts inthis series are as follows:

Part 1 General and clinical .terms

Part 2 Dental materials

Part 4 Dental equipment

Part 5 Terms associated with testing

The text of ISO Standard has been approved as suitable for publication as Indian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards. Attentionis particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should beread as ‘Indian Standard’; and

b) Comma ( , ) has been used as a decimal marker while in Indian Standards, the current practiceis to use a point ( . ) as the decimal marker.

Only the English Ianguagetext of the International Standard ( including alphabetical index ) has beenadopted in this Indian Standard.

Amendments 1 and 2 of 1992 have been issued to IS-O 1942-3:1989, adding in numerical sequencecertain terms, which have been included in continuation of the existing text of this standard( From 3.280 onwards).

IS 7348( Part 3 ) :2003ISO 1942-3:1989

Indian Standard

DENTAL VOCABULARYPART 3 DENTAL INSTRUMENTS

( Second Revision)1 Scope

This part of ISO 1942 defines terms used indentistry, particularly those relating to dentalinstruments. General and clinical terms, and termsconcerning dental materials and equipment, andthose terms associated with the testing of suchproducts are incorporated in the four other partsof this International Standard.

This Internatiorral Standard is intended to provideaccepted definitions for a number of terms usedin dentistry that could prove useful for thecomprehension of documents aiming at thepreparation and implementation of Standards,and to improve communication, through closecooperation with the Federation dentaireinternationale, the World Health Ogranization andother national or international interestedorganizations.

2 Use of terms printed in italic typeface indefinitions

A term printed in italic typeface in a definition,an example or a note has the meaning given toit in another entry of the Vocabulary, and maybe found in any part of ISO 1942. The term isonly printed in italic typeface the first time itoccurs in each entry.

Other grammatical forms of the term, for exampleplurals of nouns and participles of verbs, areprinted in the same way as the basic form.

3.001 dentistry): Science and art of preventing,diagnosing and treating diseases and malformationsof and injuries to the teeth, mouth and jaws, andof replacing lost teeth and associated tissues.

1) The designation of “dentistry” may vary according tothe usage of the term in the country concerned.

1

3.002 dentist2): Person who after completingsecondary education, or equivalent, followsa prescribed course in dentistry, at arecognized ( or accredited ) university or dentalschool, at the successful completion of which,he ( or she ) is qualified to be legally licensed( or registered ) to practise dentistry, by theresponsible body in the country and is capableof undertaking the prevention, diagnosis andtreatment of orodental conditions at the communityand individual levels by exercising independentjudgement without supervision.

3.003 dental office; dental surgery: Locationwhere dental patients are received and treatedby the dentist.

3.004 working space of the dentist : Spaceorganized around the dentist and equipped forthe positioning and treatment of the patient.

3.005 dental laboratory : Workshop wheretechnical procedures prescribed by the dentist,and not requiring the presence of the patient,are carried out.

3.006 dental technician3J : Dental auxiliarycompetent to perform under the prescription ofthe dentist, the dents/ /aboratory work.

3.007 orthodontics : Branch of dentistryconcerned with the study of craniofacial growthand development, the treatment or preventionof malocclusion and other dentofacial anomalies.

3.008 periodontics; periodontia : That branchof dentistry concerned with the study, preventionand treatment of diseases affecting theperiodontium.

2, This definition is in accordance with the WHO, CIOMSdefinitions of a “physician” adopted by the World HealthAssembly, Geneva, April 1972. The designation of dentistand dental schools may vary according to the usage ofthe terms in the country concerned.

3) The designation“dental technician” and his technical

qualification may vary according to the countries concerned.

IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.009 restorative dentistry : Comprehensiveterm covering dental procedures in the dentulousor partially edentulous mouth; these may includeoperative, endodontics, periodontics, orthodontic andprosthetic procedures.

3.010 conservative dentistry : That part ofdentistry-which is concerned with the treatmentand restoration of individual teeth.

3.011 . . ... . That part of conservative dentistrywhich is concerned with the functional restorationof the tooth.

3.012 paedodontics; pedodontics/USA/: Thatbranch of derttistrywhich is concerned with thediagnosis, treatment and prevention of oralanomalies, conditions and injuries in children.

3.013 endodontics : That branch of dentistryconcerned with the diagnosis and treatment ofthe diseases of the pulp and the contiguousperiapical tissues.

3.014 prosthodontics; prosthetic dentistry:That branch of cferttistrywhich is concerned withthe functional and aesthetic rehabilitation of themasticator system by artificial replacement ofmissing teeth and associated tissues.

3.015 dental material: Substance or combinationof substances specially prepared and/or presentedfor the use of authorized persons in the practiceof dentistry and/or its associated procedures.

3.016 dental equipment : Furniture, machines,apparatus and accessories thereto, speciallymanufactured and/or presented for the use ofauthorized persons in the practice of dentistryand/or its associated procedures.

3.017 dental instruments : Small hand-toolsspecially designed for use in dentistry.

3.018 dental product : Any product speciallymanufactured, prepared and/or presented for theuse of authorized persons in the practice of dentistryand/or its associated procedures.

3.019 dental device : Any article, instrumentor appliance, specially manufactured and/orpresented for the use of authorized persons inthe practice of dentistry and/or its associatedprocedures, which is neither a denkd rnateria/,nor an item of dents/ equipment, nor has beenmade specifically for an individual patient.

3.020 dental pharmacological materials: Thosedents/ rnateriak which carry out their intendedfunction by actively affecting, either locally orsystemically, the normal physiological behaviourof the tissues or any pathological changestaking place in them, or by modifying thenormal metabolism of cells or of invading micro-organisms. ( Such pharmacological action mayalso be a secondary function of certain otherdental materials. )

3.021 instrument handle : That part of aninstrument designed to be held during use.

3.022 interchangeable instrument holder :Handle equipped with a retention device providingeasy interchangeability of the instrument it isdesigned to hold.

3.023 dental mirror : Intra-oral inspection orinspection and retraction instrument generallyconsisting of two main, often separable parts:

a) a handle;

b) a mirror attached or not to a stem, thefunction of which is to join the handle tothe mirror.

3.024 plane dental mirror: Dental mirror thereflective surface of which is flat.

3.025 concave [ magnifying] dental mirror:Dental mirror the reflective surface of -which isconcave to produce an enlarged image of theobjects observed.

3.026 double-sided den, mirror: Dental mirrorwhere the two surfaces are reflective.

3.027 double separator mirror : Instrumentcomprising two mirrors joined by a stem whichholds them at such a distance and direction inorder that there will simultaneously be retractionof the soft tissues and observation of lingualand vestibular surfaces.

3.028 dental probe; explorer: Hand-held tactileinstrument with a stem terminating in a thin workingpart which may be needle-like, hooked, or bluntaccording to the intended use.

3.029 forceps, dental extraction: Type of pincersfor the extraction of teeth.

3.030 elevator, dental : Type of lever designedfor use during the extraction of teeth or roots.

3.031 syndesmotome: Dental surgical instrumentfor cutting desmodontal fibres and detaching thealveolo-dental ligaments.

2

3.032 root separator : Surgical instrumentspecially designed for wedging apart the rootsof a multiradicular tooth.

3.033 teeth separator : Instrument or deviceused to move adjacent teeth out of normal contact.

3.034 dental scaler: Hand- or.power-operate.ddental instrument specially designed and/orpresented for the removal of calculus from thesurface of teeth.

3.035 spatula : Hand instrument used to mixand manipulate liquids, powders and semi-solids.The working part or blade must be non-reactiveto the materials for which is it used.

3.036 hand-held cutting instruments forrestorativedentistry : Instrument comprisit?g :

— a working part or blade with a cuttingedge;

— a handle by which the instrument is heldand manipulated;

— a connecting part or shank which unitesthe handle to the blade;

— in the case of contra-angle biplanediscoids, cleoids, and pear-shaped excavators,a stem connecting the blade to the shank.

3.037 straight hand-held cutting instrument:Hand-held cutting instrument, the handle, bladeand shank of which are in the same axis.

3.038 curved hand-held cutting instrument:Hand-held cutting instrument, the blade of whichis curved towards one of its two flat sides,

3.039 angled hand-held cutting instrument:Hand-held instrument the blade of which is atan angle to the long axis of the handle.

3.040 contra-angled hand-held cuttinginstrument: Hand-held cutting instrument havinga long blade at a sharp angle to the long axis ofthe instrument, and a shank which has two ormore angles or bends which bring the cuttingedge within the axial projection of the handle.

3.041 hatchet : Angled hand-held cuttinginstrument the cutting edge of which is in thesame plane as the long axis of the handle.

3.042 hoe: Angled hand-held cutting instrumentthe cutting edge of which is in a plane perpendicularto the long axis of the handle.

IS 7348 (.Part 3 ): 20031S0 1942-3:1989

3.043 biplane curved hand-hetd cuttinginstrument : Hatchet-type instrument the bladeof which is curved so that the concavity is onthe same side of the blade as the cutting edge.Spoon, cleoid, discoid and pear-shaped hand-held cutting instruments are so called when thestem is similarly curved.

3.044 chisel: F/and-held cutting instrumenttheMade of which is rectangular in cross-sectionand bevelled to provide a straight cutting edgeperpendicular to the long axis of the blade.

The blade is usually straight ( parallelepipedic )but may be curved on the flat.

3.045 angle-forming chisel : Chise/the cuttingedge of which is not perpendicular to the longaxis of the blade.

3.046 dental excavator : Hand-held cuttinginstrument the cutting edge of which is curved.

3.047 -standard position for identificationof hand-held cutting instrument : Position inwhich an instrument should be viewed by anoperator in order to identify it, namely with itshandle towards the operator and its working partupwards.

3.048, left: Classifies a hatchet-type instrumentthe cutting edge of which is on the left side ofthe blade when the instrument is viewed in thestandard position.

Also classifies an angle-forming straight chiselinstrument the acute angle of which is on theleft side of the blade and the bevel of which ison the far side of the blade when the”instrumentis viewed in the standard position.

3.049 right: Classifies a hatchet-type instrument,the cutting edge of which is on the right side ofthe blade when the instrument is viewed in thestandard position.

Also classifies an angle-forming straight chiselinstrument the acute angle of which is on theright side of the blade and the bevel of which ison the far side of the blade when the instrumentis viewed in the standard position.

3.050 distal : Classifies a hoe-type instrumentthe cutting edge of which is on the far side ofthe blade when viewed in the standard position.

Also classifies a gingival margin trimmer the acuteangle of which is on the far edge of the bladewhen viewed in the standard position.

3

IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.051 proximal; mesial : Classifies a hoe-typeinstrument the cutting edge of which is on thenear side of the blade when viewed in the standardposition,

Also classifies a gingiva/ margin trimmer theacute angle of which is on the far edge of theblade when viewed in the standard position.

3.052 spoon excavator : Dental excavatorthe blade of which is curved so that the cuttingedge is on the concave side of the blade.

The cross-section of the blade is approximatelysemi-circular.

3.053 pear-shaped excavator : Curved dents/excavator the blade of which -hasa pear-shapedprofile and is joined to the shank at its narrowestportion.

3.054 cleoid excavator : Dents/ excavatortheblade of which is pointed and approximatelytriangular in cross-section, and has two cuttingedges.

3.055 discoid excavator: Dents/ excavator theblade of which is a segment of a sphere with acircumferential cutting edge.

3.056 gingival margin trimmer: Biplane-ang/e-forming chisel.

3.057 slip-joint : Device for coupling thedrive-shaft to the handpiece, consisting of twoco-axial cylinders slipped one upon the other andsecured by a retaining device.

3.0!i8 wrist-joint :System consisting of hinges,rotating joints and pulleys, which allows the rotarymovement to be transmitted through a cord driveto a freely movable s/ip-joint.

3.059 externally locking slip-joint : Slip-jointcharacterized by an external locking deviceintended to engage in a slot in the proximal, partof the body of the handpiece where it locks in agroove adjacent to and in line with the slot.

3.060 internally locking slip-joint; connectionto micromotor : Slip-joint in which the retentionof the handpiece is effected by means of aretractable bolt projecting from the internal cylinderand intended to engage in an annular groovemachined in the inside of the proximal part ofthe dental handpiece.

NOTE — This joint permits rotation of the handpiece onthe micromotor.

3.061 handpiece, dental ( general term): Hand-held tool holder designed to transmit with or withouttransformation the energy necessary for theoperation of dental tools or instruments.

3.062 dental handpiece ‘for rotarymovement : Dents/ handpiece designed totransmit or transform rotary movements.

NOTE — Most of these are designed as short toolholders to be directly coupled to a dental electric orair-driven micromotor. Such a formed unit may beconsidered as the handpiece, and can even be anintegrated device comprising a micromotor, thetransmission and the chuck. Dental handpieces maybefitted with air and water ducts to cool and/or clean theoperating field and or fibre optics to illuminate it.

3.063 handpiece, straight: Handpiece designedto transform and/or transmit rotary movementsto a tool, the axis of which coincides with themain axis of the handpiece.

3.064 handpiece, angled ( general term ) :Handpiece of which the-main axis is at an anglewith that of the instrument or tool which it carries.

3.065 handpiece, obtuse-angled: Mono-angledhandpiece of which the main axis is at an obtuseangle with that of the instrument or tool which itcarries.

3.066 handpiece, right-angled: Mono-angledhandpiece of which Ihe main axis is at a rightangle with that of the instrument or tool which itcarries.

3.067 handpiece, contra-angled: Right-angledhandpiece with one or more additional anglesso placed as to bring the working part of theinstrument or tool approximately into “line withthe main axis of the handpiece.

3.068 handpiece, contra-angled, adjust-able: Type of contra-angled handpiece in whichthat part carrying the right-angled head can berotated about its own axis.

3.069 right-angled head : Distal part of ahandpiece which retains and/or drives theinstrument at right-angles to the long axis of theneck of the handpiece.

3.070 neck of a dental harrdpiece : That partof an ang/ed handpiece which unites the headto the body ( or handle ).

3.071 handpiece, adjustable, angled : Typeof ang/ed handpiece in which the angle of theneck to ttwbody can be changed.

3.072 miniature right-angled head: Right-ang/edhead of small dimensions specially designed toaccommodate miniature burs.

4

3.073 handpiece, endodontics : Type of corrtra-ang/ecf handpiece, for use in endodontics, designedto transform a continuous rotary movement intoan alternate semirotary one and/or axial alternatemovement, irrespective whether they are combinedor not.

3.074 handpiece, Doriot type : Straighthandpiece with an integral wrist-joint. At its proximalend it has a knurled button for securing, by meansof a chuck, instruments or specially designedangled heads.

3.075 micromotor, dental : Small motor, electricor air driven, which is directly coupled to or anintegral part of the handpiece.

3.076 air turbine, dental : Air-driven high-speedsmall turbine which is designed to be integratedinto the head of a dents/handpiece. The chuckingdevice is co-axial to the turbine,

3.077 miniature dental air turbine: Small dentalair turbine, the head of which is designed toaccommodate miniature FG burs.

3.078 friction grip shank of a rotary instrument( FG ) : Shank designed to fit into a friction gripchuck.

3.079 friction grip chuck of a rotaryhandpiece: Tool holder in which instrument fixation,centring and driving are achieved throughdeformation of an elastic system when theinstrument shank is inserted.

3.080 latch-type retainer: ‘Device designed toretain rotary instruments by engaging the groovein the instrument shank.

3.081 latch-type shank: Rotary instrument shankhaving an annular groove for retention by a /atch-type retainerand a flat which engages the drivingcomponent of the harrdpiece.

3.082 rotary instrument ( general term) : Hand-or power-operated instrument designed to be usedwith a rotary movement reversing or combinedwith other types of movements. It consists of aworking part, sometimes called the head and ashaft. The rotary movement may be complete,partial, reversing or combined with other typesof movements.

3.083 shank of a rotary instrument: That partof the shaft of a rotay instrument which is designedto fit into a handpiece or other tool holder.

IS 7348( Part 3 ) :2003[S0 1942-3:1989

3.084 neck of a rotary instrument : That partof the shaft of a rotary instrument which unitesthe working part to the shank. It is usually tapered.

3.085 type of shank: That designation by whichthe shank of a rotary instrument is identifiedaccording to its shape and dimensions.

3.086 shape of the working part of a rotaryinstrument: Geometrical outline of the envelopeof revolution described by the working part of arotary instrument during its axial rotation.

NOTE — Where there is more than one geometrical outlineproduced by the rotating working part, each outline shallbe successively described from the distal end.

EXAMPLES

Domed truncated conical head.

Inverted truncated conical cylindrical head.

Conical inverted hemispherical head.

Conical truncated inverted conical head.

3.087 characterization of =a rotaryinstrument: Detailed characteristics of the workingpart of an instrument, for instance the number,dimensions and geometry of the blades, or thesize and distribution of the abrasive particles.

3.088 burnisher : Hand or rotary instrumentwith a smooth or ribbed working head us=d forthe cold working of metal surfaces in order toproduce a bright smooth finish and/or for thespinning of thin metallic margins at the cavo-surface angle.

3.089 drill : Boring instrument.

3.090 scaler, rotary :1)

3.091 spear drill :1)

3.092 twist-drill :1)

3.093 drill, countersinking cylindrical, withguide :1)

3.094 drill, countersinking conical :1)

3.095 cutter, tubular windowed :1)

3.096 cutter, tubular, truncated, conical :1)

3.097 trephine windowed :1)

3.098 trephine with circular window :1)

3.099 head, cylindrical: Working part describing,by Totation about the shank axis, an envelopeof revolution in the shape of a cylinder,

‘) ( Term self-explanatory ).

5

IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.100 -head, wheel-shaped : Cylindrical head,the length of which is approximately equal toone-third of its nominal diameter.

3.101 head, conical : Working.part describing,by rotation about the shank axis, an envelopeof revolution in the shape of a cone, the base ofwhich is towards the shaft.

“3.102 head, conical truncated : Working partdescribing, by rotation about the shank axis, anenvelope of revolution in the shape of a truncatedcone, the base of which is towards the shaft.

3.103 head, conical inverted : Workrng partdescribing, by rotation about the shank axis, anenvelope of revolution in the shape of a cone,the base of which is away from the shank.

3.104 head, conical inverted truncated: Workingpart describing, by rotation about the shank axis,an envelope of revolution in the shape of a truncatedcone the base of which is away from the shaft.

The length of the head and its mean diameterare approximately equal.

3.105 head, spherical; round head : Workingpart describing, by rotation about the shank axis,an envelope of revolution in the shape of a sphere.

3.106 head, hemispherical; half-roundhead : Working part describing, by rotation aboutthe shank axis, an envelope of revolution in theshape of a hemisphere, the base of which istowards the shaft.

3.107 head, hemispherical inverted; invertedhalf-round head : Working part describing, ‘byrotation about the shank axis, an envelope ofrevolution in the shape of a,hemisphere, the baseof which is away from the shaft.

3.108 head, hypo-hemispherical : Working partdescribing, by rotation about the shank axis, anenvelope of revolution in the shape of a dome ofconstant curvature smaller than a hemisphere,the base of which is towards the shaft.

3.109 head, hype-hemispherical inverted :Working part describing, by rotation about theshank axis, an envelope of revolution in the shapeof a dome of constant curvature smaller .than ahemisphere, the baseof which is away from theshaft.

3.110 head, ellipsoidal: Working part describing,by rotation about the shank axis, an envelopeof revolution in the shape of an ellipsoid.

3.111 head, ellipsoidal longitudinal : Workingpart describing, by rotation about the shank axis,an envelope of revolution in the shape of anellipsoid, the long axis of which coincides withthe axis of rotation.

3.112 head, ellipsoidal transverse : Workingpart describing, by rotation about the shank axis,an envelope of revolution in the shape of anellipsoid, the short axis of which coincides withthe axis of rotation.

3.113 head, .paraboloidal : Working partdescribing, by rotation about the shank axis, anenvelope of revolution in the shape of a regularparabola, the base of which is towards the shaft.

3.114 head, paraboloidal inverted : Workingpart describing, by rotation about the shank axis,an envelope of revolution in the shape of a regularparabola, the base of which is away from theshaft.

3.115 head, ogival : Working part describing,by rotation about the shank axis, an envelopeof revolution in the shape of the one producedby the revolution of a pointed ( Gothic ) -archaround its axis of symmetry.

3.116 head, hype-hemispherical symmetrical;lens-shaped head: Working part describing, whenrotating, a shape of a biconvex lens.

3.117 head, conico/cylindrical; pointedcylindrical head: Cylindrical head having a conicalend, the base of which has the same diameteras the cylinder.

3.118 spherico/cylindrical head; round-endedcylindrical head : Cylindrical head, the end ofwhich describes, when rotating, a spherical surfacethe diameter of which is greater than that of thecylindrical part.

3.119 hemispherico/cylindrical head; domedcylincfrical head : Cylindrical head ending in ahemispherical dome, the radius of which is equalto that of the cylindrical part.

3.120 hypo-hemispherico/cy lindrical head;round-ended cylindrical head: Cylindrical head,the end of which describes, when rotating, aspherical surface which is less than a hemisphere.

3.121 ogivo/cylindrical head; torpedo-shapedcylindrical head : Cylindrical head, the end ofwhich describes, when rotating, a figure similarto the one produced by the revolution of a pointed( Gothic ) arch around its axis of symmetry.

6

3.122 hollow head; cup-shaped head : Headwhich describes, when rotating, a surface ofrevolution with any profile which has a cavityopen at the end.

EXAMPLES

Hollow inverted hemispherical head ( cup-shapedhead ).

Hollow inverted truncated cone head ( hollowinverted cone head ).

Hollow cylindrical head.

3.123 trephine : Primarily end-cutting hollowcylindrical or truncated conical head.

3.124 shouldered head : Head having a smoothshoulder, the function of which is to limitpenetration.

3.125 oval head; ovaloid head : Working partwhich describes, when rotating, a figure producedby the revolution, around one of its two axes ofsymmetry of an oval.

3.126 longitudinal oval head : Oval head theaxis of rotation of which coincides with its longaxis of symmetry.

3.127 transverse oval head : Oval head theaxis of rotation of which coincides with its shortaxis of symmetry.

3.128 ovoidal head; egg-shaped head: Workingpart which describes, when rotating, a figureproduced by the revolution, around its axis ofsymmetry, of an ovoid, the larger end being towardsthe shaft.

NOTE — An ovoid is a smooth closed cuw-e with only oneaxis of symmetry. No straight line meets the curve in morethan two points.

3.129 inverted ovoidal head; inverted egg-shaped head : Working part which describes,when rotating, a figure produced by the revolution,around its axis of symmetry, of an ovoid, thesmaller end being towards the shaft.

3.130 spherical head with collar : Sphericalhead joined to a truncated conical shank the dista/part of which also carries cutting or abrasiveelements.

3.131 inverted conical head, truncated, side-cutting only : ( Term self-explanatory ).

3.132 inverted conical head, truncated, withcollar : Inverted truncated conicai head joinedto a truncated conical shank the dista/ part ofwhich also carries cutting or abrasive elements.

IS 7348( Part 3 ): 2003ISO 1942-3:1989

3.133 inverted conical head with collar: /nvertecfconkzd headjoined to a truncated conical shankthe distcd part of which also carries cutting orabrasive elements.

3.134 inverted conical head, pointed,truncated : Head having a shape composed oftwo principal figures; distally a conical part joinedat its base without a step to an inverted truncatedconical proximal part.

3.135 inverted bell head: Head having a shapecomposed of two principal figures: distally ahyperboloidal part which is bitruncated andinverted joined without a step to an invertedhemispherical proximal part.

3.136 wheel head, pointed : Head having ashape composed of two principal figures: distallya cone which is united at its base without a stepto a proximal part which is in the form of a wheel.

3.137 wheel head with collar : Wheel headjoined to a truncated conical shank the dista/part of which also carries cutting or abrasiveelements.

3.138 wheel head, riveting : Wheel head,carrying on its rim balls or rollers for riveting.

3.139 inverted conical head, cylindrical: Headhaving a shape composed of two principal figures:distally an inverted conical part.joined without astep to a cylindrical proximal part.

3.140 inverted conical head, truncated/cylindrical : Head having a shape composed oftwo principal figures: distally an invertedlruncatedconical part joined with a step to a cylindricalproximal part.

3.141 Ienticular head with collar : Lenticularhead joined to a truncated conical shank, thedistd part of which also carries cutting or abrasiveelements.

3.142 inverted conical truncated head withconcave side : Head having the shape of aninverted truncated cone, the side of which isconcave.

3.143 wheel head with rounded edges: Wheelhead, the axial cross-section of which is a rectangle,with rounded edges.

3.144 wheel head recessed, with convexrim : Wheel head, symmetrically recessed, therim of which is slightly and symmetrically roundedin axial cross-section.

3.145 wheel head with rounded rim : Wheelhead, the rim of which is semi-circular in axialcross-section.

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IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.146 wheel head with convex rim,shouldered : Wheel head, the rim of which isslightly and symmetrically rounded in axial cross-section with a shoulder centrally on its dista/surface.

3.147 cylindrical head, round edged withconcave end : Cy/irrdrica/ head, approximatelysquare in axial cross-section with a concave distalsurface and with a rounded dista/edge.

3.148 inverted conical, end cutting only

3.149 wheel, end cutting only :1)

3.150 wheel, rim grooved perforated :1)

.1)

3.151 inverted conical, side cutting only withconcave end :’)

3.152 wheel, peripheral cutting only :1)

3.153 wheel, spoked, peripheral cuttingonly :’)

3.154 cylindrical, side cutting only :1)

3.155 cylindrical, end cutting only :1)

3.156 cylindrical, end cutting and partiallyside cutting :’)

3.157 cylindrical domed, end cutting andpartially side cutting :1)

3.158 truncated, conical side cuttingonly :’)

3.159 truncated, conical, domed :1)

3.160 truncated, conical, pointed :1)

3.161 truncated, conical, domed, side cuttingonly :’)

3.162 cylindrical, double domed :1)

3.163 conical, with inverted conical endsymmetrical :’)

3.164 inverted, truncated, conical,domed :1)

3.165 inverted, conical, domed :1)

3.166 flame :1)

3.167 bud :1)

3.168 bud, slender :1)

3.169 barrel :1)

3.170 cylindrical, with ogival end :1)

1)(Term self-explanatory).

3.171 Ienticular, rim cutting only : 1)

3.172 bud, rounded : 1)

3.173 bud, rounded, slender : 1)

3.174 bell : 1)

3.175 conical, inverted hyper-bo-loidal,short :1)

3.176 bur, dental :

(1) Rotary milling tool, consisting of a head anda shaft, designed to fit into a dents/ handpiece.

(2) Rotary milling tool, designed to fit into adertta/ handpiece and consisting of a head anda shaft.

NOTE —This term has also sometimes been incorrectlyapplied to small abrasive diamond instruments.

3.177 bur head : Working part of a bur.

.3.178 bur head length : Axial dimension of thebur head.

3.179 bur shaft: Bur, minus its head. The shaftconsists of the neck and the shank.

3.180 bur neck : Usually tapered part of theshaft of a bur which unites the head with theshank.

3.181 bur shank : That part of the shaft of aburwhich fits into the handpiece-chuck.

3.182 bur, spherical-: Efurwith a spherical head.

3.183 bur, cylinder : Bur the head of whichdescribes a cylindrical surface when rotating.

3.184 bur, conical truncated: Burwith a truncatedconical head.

3.185 bur, trephine: Hollow open-ended primarilyend-cutting cylindrical or truncated conical bur.There are usually one or more lateral openings.

3.186 bur, shouldering : Type of cy/indrica/burthe head of which carries cutting blades bothon the end and on the part of the side adjacentto it.

3.187 bur, wheel : Usually cy/indrica/ bur thehead length of which is approximately equal toone-third of its nominal diameter.

3.188 bur, shouldered : Bur having a shoulderthe function of which is to limit its penetration.

‘) (Term self-explanatory).

8

IS 7348( Part 3 ): 2003ISO 1942-3:1989

3.189 bur, end-cutting : Cylindrical, exclusively Abrasive discs are distinguishedend-cutting bur.

— by the shape and nature of the disc and3.190 bur, conical truncated inverted; inverted its particular characteristics;cone bur: Elurwith an inverted truncated conicalhead. — by the type and quality of the abrasive;

3.191 bur, excavating : Elurspecially intended — by the type of bond of the abrasive.

for the removal of.cari&s dentine. -3.212 flat disc: Abrasive disc with a flat surface.

3.192 bur, finishing : Elurwith fine blades usedfor finishing surfaces. 3.213 conical disc : Abrasive disc the surface

of which is conical and which is mounted on the3.193 bur, root-facing : End-cutting bur with a mandrel at its apex.broad and flat end which bears cutting blades,and a smooth central guide intended to be located 3.214 perforated disc : Hat or conica/ disc in

in the root canal during use. which there are perforations.

3.194 bur for pulp chamber : Cylindrical or 3.215 tangential cutting disc: Disc with abrasive

truncated conica/ burwith a domed smooth end. on its periphery.

3.195 circular saw bur: Disc-shaped peripheral 3.216 single-sided disc : Disc with abrasive

cutting bur. on one surface only.

3.196 bur, interdental :11 3.217 double-sided disc : Disc with abrasive

3.197 bur, roughening :1)on both surfaces.

3.198 bur, spherical extra-long stem :1)3.218 single-sided tangential cutting disc :Disc with abrasive on one side and on its periphery.

3.199 root facer bur, guided :1)3.219 double-sided tangential cutting disc :

3.200 amalgam bur :1) Disc of which both surfaces and the periphery

3.201 bur, shouldered, countersinkingare abrasive.

cylindrical, with guide :’) 3.220 convex disc : Single-sided conica/ disc,

3.202 root-facing bur, hemispherical,tangential cutting or not, of which the intermal

guided :1)surface is not abrasive.

3.203 mandrel with external thread andnut :’)

3.204 mandrel with external thread :1)

3.205 mandrel with internal thread andscrew :’)

3.206 mandrel, reinforced, with internal threadand screw :’)

3.207 tapered screw chuck :’)

3.208 mandrel, with pin chuck and two locatingprongs :1)

3.209 mandrel, split, truncated, conical :1)

3.210 mandrel, split cylindrical :1)

3.221 concave disc: Single-sided conical disc,tangential cutting or not, of which the externalsurface is not abrasive.

3.222 edge-cutting disc : Flat, doub/e-sidedtangentia/ cutting disc, abrasive only on theperiphery and the part adjacent to it.

3.223 circular saw: Cutting instrument consistingof a circular metallic sheet which carries teethon its peripheral edge. Its dimensions and rigiditydepend upon its intended use.

3.224 flat disc, single-sided and peripheralcutting :’)

3.225 flat disc, double-sided and peripheralcutting :’)

3.211 abrasive disc: Rotary instrurrrerztconsisting 3.226 flat disc, perforated, double-sided andof a circular flat or slightly conical sheet carrying peripheral cutting :1)or containing an abrasive. It is fixed or intendedto be fixed at its centre to a mandrel. 3.227 flat disc, peripheral cutting only :’)

‘j ( Term self-explanatory). 1) ( Term self-explanatory ).

9

IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.228 flat disc, rear bevelled, frontcutting :’)

3.229 flat disc, rear bevelled, rear cutting :1)

3.230 flat disc, rear shouldered, double-sidedand peripheral cutting :’)

3.231 flat disc, front shouldered, double-sidedand peripheral cutting :’)

3.232 disc, inverted conical, rear-cutting :1)

3.233 inverted conical disc, front cutting :1)

3.234 inverted conical disc, rear bevelled frontcutting :’)

-3.235 root-canal instruments : Instrumentsintended for the exploration, penetration,preparation or fi//ing of root canals.

3.236 root-canal reamer: Hand- or power-operatedrotary instrument the working part of which is

designed to debride or enlarge root canals by a

side cutting action.

3.237 root-canal file : Hand-or power-operatedinstrument the working part of whjch is designedto enlarge root canals and smooth their walls bya cutting or abrasive action when moved in alongitudinal direction.

3.238 root-canal rasp: Hand- or power-operatedinstrument on the working part of which sharpprominences have been machined. It is designedto enlarge the root canal by abrasive action.

3.239 root-canal barbed broach : Handinstrument the workirrg part of which has sharpprojections curving backwards and obliquely. Itis designed to engage and remove pulpal tissuesfrom the root canal.

3.240 root-canal smooth broach : Handinstrument the working part of which is smoothand circular or polygonal in cross-section. It isdesigned for exploring root canals.

3.241 root-canal filting condenser : Handinstrument the working part of which is tapered,circular in cross-section and has a flat end. It isdesigned to compress fj//irrg rnateriak in a rootcanal mainly in an axial direction.

3.242 root-canal filling spreader : Handinstrument the working part of which is tapered,circular in cross-section and has a pointed end.It is designed to compress Wing rrrateriak in aroot canal mainly in a lateral direction.

3.243 root-canal absorbent point : Slendercone made of an absorbent material. It is designedfor insertion into a root canal for drying it, conveyingmedicaments into it or obtaining microbiologicalspecimens.

3.244 root-canal applicator: Pointed instrument,circular in cross-section, the working head ofwhich is roughened. It is designed to hold cotton-WOOdor liquids to be inserted into a root canal.

3.245 root-canal paste carrier: Power-operatedinstrument the working part of which is a helicoidalor conical spring. It is designed for conveyingWing materiak or medicaments into a root canal.

3.246 root-canal filling point : Slender conedesigned for use in the obturation of a root canal.It may be made of any suitable material e.g.gutta-percha, silver, acrylic, resin-based materials,etc.

3.247 root facer: End-cutting head with a smoothcentral guide intended to fit into the root canal.

3.248 self-guiding root-canal instrument :Instrument having a non-cutting tip designed tofotlow a root canal in order to guide the workingpart.

3.249 root-canal drill reamer : Reamer whichcuts throughout its working part, including thetip.

3.250 root-canal file, type H : Root-cana/ fi/ethe working part of which is tapered and in theform of a screw thread set at about 55° so thatthe instrument works actively on pulling.

3.251 root-canal rasp, type R : Rasp used byhand, the working part of which is tapered andbears sharp projections.

3.252 root-canal reamer, type K : Reamer thetapered working part of which is square or triangularin cross-section and twisted, to form helicoidalcutting edges, at an angle of less than 12° withthe long axis.

3.253 root-canal file, type K: File the taperedworking part of which is square or triangular incross-section, and twisted, to form helicoidalcutting edges, at an angle of more than 16° withthe long axis.

3.254 root-canal reamer, type G : Self-guidingreamer, the working part of which is flame-shapedand carries helicoidal blades. It is joined to theshank by a Icing neck.

1, ( Term self-explanatory ).

10

3.25.5 -root-canal reamer, type 61: Longitudinalellipsoidal drill reamer bearing four helicoidal bladesand terminating in an ogival point.

3.256 root-canal reamer, type B2 : Cylindricaldrill reamer bearing two helicoidal blades andterminating in an ogival point.

3.257 root-canal reamer, type P: Long longitudinalellipsoidal drill reamer bearing three helicoidalblades and terminating in an ogival point.

3.258 root-canal reamer, type O : Reamer inthe form .of a long truncated cone bearing threehelicoidal blades and terminating in a flat end.

3.259 root-canal reamer, type A : Drill reamerin the form of a long truncated cone terminating

in a slender ogival point. It bears three straightblades separated by grooves.

3.260 root-canalreamer, type D : Drill reamerin the form of a long truncated cone terminatingin a conical point. It bears three straight bladesseparated by grooves.

3.261 root-canal reamer, type T : Drill reamerin the form of a long truncated cone terminatingin a conical point and bearing 12 to 16 straightblades.

3.262 root-canal reamer, type Cl : Drill reamerin the form of a long truncated cone bearing sixor eight straight cross-cut blades.

3.263 root-canal reamer, type C2: Drill reamerin the form of a long truncated cone bearing sixor eight straight cross-cut blades and terminatingin a conical cutting end.

3.264 root-canal reamer, type KL : Drill reamerin the form of a long truncated cone bearing sixor eight helicoidal blades and terminating in aconical point.

3.265 handle, short, of a root-canalinstrument : Short handle, which is designedfor finger manipulation of a root-canal instrument.

3.266 root-canal paste carrier holder withgraduation, latch type : Rotary root-canalinstrument holder with a device for adjusting thelength of the paste carrier.

3.267 bur, surgical : Bur designed for cuttingbone during surgical-procedures.

3.268 bone cutter, truncated, conical,pointed :1)

1, ( Term self-explanatory ).

IS 7348( Part 3 ): 2003ISO 1942-3:1989

3.269 bur, surgical, “Henahan” :1)

3.270 bur, laboratory : Burdesigned for dentallaboratory use.

3.271 wax scraper, inverted conical, truncated,with truncated conical end, symmetrical,double-edged :1)

3.272 wax scraper, straight single-edged :’)

3.273 wax scraper, cylindrical double-edged :’)

3.274 wax scraper, cylindrical four-edged :’)

3.275 wax scraper, truncated, conical, single-edged :’)

3.276 wax scraper, ogival, three-edged .:l)

3.277 wax bur :’)

3.278 ptaster cutter, hollow cylindrical :1)

3.279 plaster cutter, hollow., truncated,conical :’)

3.280 dental elevator : Lever-type instrumentspecially designed for tooth extraction.

3.281 blade of -elevator : Working part of adental elevator.

3.282 handle: That part of the instrument designedto be held by the operator.

3.283 stem : That part of the instrument whichlinks the working part to the handle.

3.284 standard position for observation ofdental elevators ( S.P.O. ): That.position wherinthe elevator is laid upon the table, the handletowards the observer, with that surface of theblade intended to make contact with the toothuppermost.

3.285 straight elevator: Elevator in which thelong axis of the blade, stem and handleapproximately coincide.

NOTE — Certain straight elevators may have T-bar typehandles,

3.286 angled-on-edge elevators ( right andleft ) : Elevator the blade of which is angled sothat its two flat sides are in the same p}ane asthe long axis of the elevator.

3.287 right elevator : Elevator which, placedin the S. P.O., has the blade directed towardsthe left side of the observer.

1) ( Term self-explanatory ).

11

IS 7348( Part 3 ) :2003ISO 1942-3:1989

3.288 left elevator : Elevator which, placed inthe S. P.O., has the blade directed towards theright side of the observer.

3.289 description of elevator blades :

(1) The shape can be ogival, triangular ortapered.

(2) The cross-section can be rectangular,or Ienticular ( hi-convex ), piano-convex( cave-convex ) or semi-circular.

3.290 endodontics absorbent point; paperpoint: Slender cone made of an absorbent material( usually paper) and designed to absorb liquidsin root canal therapy.

3.291 endodontics obturating point : Slendercone, of convenient shape and size, designedfor use in the permanertt filling of a root canal.

3.292 endodontics gutta-percha point: Endodonticsobturating point the main component of which isgutta-percha.

3.293 endodontics silver point : Endodonticsobturating point made of silver.

3.294 endodontics polymeric point: Endodonticsobturating point the main component of which issynthetic polymers.

3.295 band pusher: Hand instrument designedfor positioning and adapting metal bands on teeth.

3.296 band-removing pliers : Pliers designedfor removing bands from teeth.

3.297 retractor: Instrument designed to displacethe soft tissues to improve visibility, access,and safety during clinical procedures.

NOTE — Retractors are classified according to thetissue concerned, e.g. cheek, lip, flap, tongue, tissueretractors etc.

3.298 dental amalgam carrier : Instrumentspecially designed to collect, transport and depositamalgam in a plastic state into prepared cavities.

12

IS 7348( Part 3 ): 2003ISO 1942-3:1989

Alphabetical index

A

abrasive disc ........ . . . . . ......3.211

adjustable angledhandpiece . .... ....... . ....3.071

amalgam bur .... . .. . ....... . . ..3.2OO

angle-forming chisel ...... ...3.045

angled hand-held cuttinginstrument ... .. . . . . . . ....3.O39

angled-on-edge elevators(right andleft)...,,,,.3 ...3.286

B

band pusher .. .. . ........ . . . . ....3.295

band-removing pliers .........3.296

barrel .... . . . . . . . . . . . . . ........ . . ..3.l69

bell . . . . . . . . .. . . . . .. . . . . .............3.174biplane curved hand-held

cutting instrument ......3.043

blade.of elevator .... . ...... . . ..3.28l

bone cutter, truncated,conical, pointed .... . .....3.268

bud ..... . . . . . . . . . . . . .......... . . . ..3.l67

bud, rounded .......... . . . ...3.172bud, rounded, slender ........3.l73

bud, slender ..... . ....... . . ...3.168bur, circular saw ........ . . . ...3.195

bur, conical truncated .......3.184bur, conical truncated

inverted . ... . ..... . .........3.190bur, cylindrical .. ........ . . . . . ..3.l83

bur, dental ... .. .. . .. . ......... ...3.176

bur, end-cutting .......... .. . ...3.189bur, finishing .... . ......... . . ....3.192burforpulp chamber .........3.l94

burhead ..... . . . . . . . ........ . . ...3.177

burhead length .......... . . . . ..3.l78bur, interdental ... . . ............3.196

bur neck. ... . . . . . . . . . . ...........3.180bur, root-facing .... . ... .... . . ..3. I93bur, roughening .... . ........ ...3.197burshaft . .. . . . . . . . . .......... . ...3.179burshank ..... . . .. . . .......... ...3.181bur, shouldered . ... . ......... ..3.l88

bur, shouldered, counter-sinking cylindrical, withguide .........................3.201

bur, shouldering .... . ...........3.186bur, spherical ... . . ....... . . . ...3.182bur, spherical extra-long

stem.. ... . . . . . . . ........ . ...3.198bur, surgical, “Henahan” ......3.269bur, trephine .... . .......... . . ...3.185bur, wheel ... . . . . . .... . . .........3.187burnisher .... . . . . . . . .......... ...3.088

c

characterization of arotary instrument .... . .. . .3.087

chisel ... . .. . . . . . ......... . . . . .. ..3.O44circular saw ,.... . . . ......... ...3.223

cleoid excavator .... . .........3.054

concave disc ...... . . . . . . .. . . ...3.22l

concave [magnifying]dental mirror ... . .. . .. . . ..3.O25

conical disc, ... . . . ........ . .. ...3.2l3

conical disc, invertedhyperboloidal, short ...3.175

conical, with invertedconical endsymmetrical ... . . .........3.163

conservative dentistry .......3.010

contra-angled hand-heldcutting instrument .... . ..3.040

convex disc .... . . . . .. . ..........3.220

curved hand-held cuttinginstrument .... . .. . .........3.038

cutter, tubular windowed ..... .3.095

cutter, tubular, truncated,conical ... .. ...... . ..... . ...3.096

cylindrical, double-domed ....... . .. . ............3.162

cylindrical domed, endcutting and partiallyside cutting ..... . . ........3.157

cylindrical, end cutting andpartially side cutting ...3.156

cylindrical, end cuttingonly ......... . . .. . .. . . . . .. . ..3.l55

cylindrical head, roundedged with concaveend ............................3.147

cylindrical, side cuttingonly .... . .. . .. . ....... . .. . . ..3.l54

cylindrical, with ogivalend ...... . . .. . ...... . ...... ..3.l7O

D

dental air turbine ..............3.076

dental amalgam carrier .......3.298

dental device .... ......... . . . ...3.019

dental elevator ..... ........ . .. ..3.28O

dental equipment .... . .........3.016

dental excavator .... . .........3.046

dental handpiece forrotary movement .... ...3.062

dental instruments ....... . .. ..3.oI7

dental laboratory .... . ........3.005dental material .. ........ . . . . ...3.oI5

dental micromotor ............3.075dental mirror ... .. . . . ...........3.O23

dental office ........... . .. . . . . ...3.oo3

dental pharmacologicalmaterials ..... . . . .. . .......3.020

13

dental probe or explorer.. ..3.028

dentaiproduct .... . . . . .........3.Ol8

dental scaler ... . . . . . . . . ........3.O34

dental surgery .... . . . . .........3.003

dental technician ... . ..........3.006

dentist ... . . . . . .. . . . . .. . ...........3.002

dentistry .... . . . . .. . . . . ............3.001

description of elevatorblades .... . .. . . . . . . . ........3.289

disc, inverted conical, rear

cutting .... . . . . . . . . . ... ........3.232

discoid excavator ........ . . ...3.055

distal ... . . .. . . . . .. . .. . .......... ...3.050

doriot type handpiece ........3.074

double separator mirror... ..3.027

double-sided dental mirror ...3.026

double-sided disc ......... . ...3.217

double-sided tangentialcutting disc .... . . . . .........3.219

drill . . .. . . . .. . . . .. .. . ........... . .. ..3.O89

drill, countersinkingconical ... . . . . . ........ . . ...3.094

drill, countersinking

cylindrical, with guide .........3.O93

E

edge-cutting disc ......... ...3.222elevator, dental ... ..... . . . . ...3.030

endodontics absorbentpoint ... . . . . . .. . ........ . . ....3.29O

endodontics gutta-perchapoint... . . . . . ......... . . . . ....3.292

endodontics handpiece .......3.073

endodontics obturatingpoint .... . . . . .. . . . ............3.29l

endodontics polymericpoint .... . . . . . .. . . . ...........3.294

endodontics silver point .......3.293

endodontics .... . .. . . . .........3.013

excavating bur .... . .. . ........3.l9l

externally locking slip-joint ..3.059

F

flame ..... ..166.. .... . ............3.l66

flatdisc .. .. .. ..212..... . .........3.2l2

flat disc, double-sided andperipheral cutting.. ..,..3.225

flat disc, front, shouldered,double-sided andperipheral cutting.. ......3.2”31

flat disc, perforated, double-sided. and peripheralcutting .... . ...... . . . . . . ...3.226

flat disc, peripheral cuttingonly ..... ............. . . . . . .. 3.227

IS 7348( Part 3 ) :2003ISO 1942-3:1989

flat disc, rear bevelled,front cutting ........ . ......3.228

flat disc, rear bevelledjrearcutting ...... . . . . . ...3.229

flat disc, rear shouldered,double-sided andperipheral cutting .......3.230

flat disc, single-sided andperipheral cutting .... ...3.224

forceps, dental extraction ...3.029

friction grip chuck of arotary handpiece ..... . ...3.079

friction grip shank of a rotaryinstrument (FG) .... ...3.078

G

gingival margintrimmer .....3.056

H

hand-held cutting instru-ment for restorativedentistry ..,., ..... ..........3.036

handle .... . .. . . . . . . . ......... . . . ...3.282

handpiece, angled(general term) ..... . . ....3.064

handpiece, contra-angled,adjustable .... . . . . .........3.068

handpiece, contra-angled.. ..3.067

handpiece, dental(general term) . ..... .....3.061

handpiece, obtuse-angled ................. . .....3.065

handpiece, right-angled ..... . ...3.066

handle, short, of a root-canal instrument.. .......3.265

handpiece, straight ..........3.063

hatchet .... .. . . . . . . . . ......... . ..3.O4l

head, conical .... . . . . ....... ...3.101head, conical inverted ,,....3.103

head, conical invertedtruncated ... .. .... . . . . ....3.104

head, conical truncated .....3.102

head, conico/cylindrical ......3.l 17

head, cylindrical . .... . ....... . . . 3.099

head, ellipsoidal ... . . ........ ..3.11 O

head, ellipsoidallongitudinal .... . ....... . ..3.lll

head, ellipsoidaltransverse .... . . . . ... . ..3.ll2

head, hypo-hemispherical .............3.108

head, hype-hemisphericalinverted .... . . . . . . . . . .....3.1 O9

head, hype-hemisphericalsymmetrical .... . . . . . ...3.116

head, ogival ... . . . . . . . ..........3.115head, paraboioidal ............3.113

head, paraboloidalinverted .. ...... . . .. . . . . ....3.114

head, spherical; roundhead ..... . . . . .. ..... . .. . ...3.1 O5

head, wheel-shaped ....... ....3.100

hemispherico/cy lindricalhead; domedcylindrical head ..... . . ....3.119

head, hemispherical;half-round head .........3.106

head, hemisphericalinverted; inverted half-round head ...............3.107

hoe ..... . . . . . .. . ......... .. .. . . . ..3.O42

hollow head (cup shape) ...3.122

hypo hemispheric/cylindrical head;round-endedcylindrical head ...... . ...3.120

I

instrument handle ............3.021

interchangeable instrumentholder,,,.,.,,,, . . . . .......3.O22

internally-locking slip-joint;

connection tomicromotor ..... . .... . ... . . 3.060

inverted bell head .............3.135

inverted conical disc, frontcutting .... . . . .. . . ...... . ...3.233

inverted conical disc, rear

bevelled, front cutting ...3.234

inverted, conical, domed.. .3.165

invefied conical endcutting only .... . .. ....3.148.3.l48

inverted conical head/cylindrical ..................3.139

inverted conical head withcollar .... . .. . .. . . .. ..........3.133

inverted conical head,pointed, truncated ......3.l34

inverted conical head,

truncated, side cuttingonly,, .................3........3.l3l

inverted conical head,truncatedcylindrical.. ...3.140

inverted conical head,truncated, with collar.. ..3,132

inverted conical, sidecutting only withconcave end ..............3.151

inverted conical truncated

head with concave side.. 3.142

inverted ovoidal head;

inverte.d egg-shapedhead .... .. . .. . . . .. . ........3.129

inverted, truncated, conical,domed ..... .. . ... .. . .........3.164

L

Iaboratorybur .... . .... . .......3.270

latch-type ratainer ..... . ......3.080

latch-type shank ..... .........3.081

left .. . . .. . . .. . .. . . . .. . . ..............3.048leftelevator .... . . .. . .. .. . ........3.288

Iens-shaped head ..... .......3.116

Ienticular head with collar ......3.141

Ienticular, rim cutting only ......3.171

longitudinal oval head .........3.126

M

mandrel with externalthread and nut ....... .....3.23

mandrel with externalthread ... .. . . . . . . .. . ........3.204

mandrel with internalthread and screw ........3.205

mandrel, with pin chuckand two locatingprongs .......................3.208

mandrel, reinforced, withinternal thread andscrew ...... . . . . . ..... . .....3.206

mandrel split cylindrical .....3.210

mandrel, split, truncated,conical .... . . . . .. . . .. .......3.209

miniature dental airturbine .... . . . . . . . .. . .......3.077

miniature right-angledhead ..... . . . .. . . . .. . . .......3.072

N

neck of a dental handpiece ...3.070

neck of a rotary instrument ....3.084

0

ogivo/cylindrical head;torpedo. shapedcylindrical head ..........3.12’I

orthodontics .... . . . .. . ..........3.007

-oval head ...... . . . . . .. . ..........3.125

ovoidal head; egg-shapedhead ..... . . . . . . . . . .. . ......3.l28

P

paedodontics .,.,. .,.........,.3.012

paper point ... . . .. . . . .. . . .........3.29O

-pear-shaped excavator ,..,.3.053

pedodontics/USA/ ............3.012

perforated disc ..................3.214

periodontia ..... .. . . . . ...........3.008

periodontics .... . . . . . . . .........3.008plane dental mirror ., . ........3.024

plaster cutter, hollowcylindrical ... . . ....... . . ...3.278

plaster cutter, hollow,truncated, conical ......3.279

pointed cylindrical head .....3.117

14

IS 7348( Part 3 ) :2003ISO 1942-3:1989

prosthetic dentistry ..........3.014

proximal; mesial ...............3.051

R

restorative dentistry .........3.009

retractor .... . . . . . . . . . . . . . .........3.297right . .. .. . . . . . . . . . . . . . . . ...........3.049right-angled head ..... ........3.069

right elevator .... . . . . . . . .........3.287root-canal absorbent

point,, .. . . . . .. . . . . . . . .......3.243root-canal applicator., ,.....3.244

root-canal barbed broach.. .3.239

root-canal drill reamer ,......3.249

root-canal file ........... . . . . ...3.237

root-canal file, type H. .......3.25O

root-canal file, type K ........3.253

root-canal fillingcondenser .... . . . . ........3.241

root-canal filling point ........3.246

root-canal filling spreader., ,.3,242

root-canal instruments ,,.,..3,235

root-canal paste carrier .....3.245

root-canal paste carrierholder with graduation,latch type ...................3.266

root-canal rasp ... . . . . . ........3.238root-canal rasp, type R ......3.251

root-canal reamer .... . ....236.3.236

root-canal reamer, type A ,.,,.3.259

root-canal reamer, type B1 ....3.255

root-canal reamer, type B2.. ..3.256

root-canal reamer, type Cl ....3.262

root-canal reamer, type C2. ...3.263

root-canal reamer, type D ....3.260

root-canal reamer, type G. ,..3.254

root-canal reamer, type K ....3.252

root-canal reamer, type KL., ..3.264

root-canal reamer, type 0..,.3.258

root-canal reamer, type P ,...3.257

root-canal reamer, type T ....3.261

root-canal smooth broach .,.,3,240

root facer .,,...,,,,,,,,,,.....,..3.247

root facer bur, guided .,..,..,3.199

root facer.bur, hemi -spherical, guided ,.,,.,,.3.202

root separator .... . . . . ..........3.O32

rotary instrument (generalterm) .........................3.082

s

scaler, rotary ..... . . . . . . ........3.090self-guiding root-canal

instrument .... . . . .........3.248

shank of a rotaryinstrument .... . .. . .........3.083

shape of the working partof a rotary instrument .....3.086

shouldered head ..... .........3.l24

single-sided disc .... ..........3.216

single-sided tangentialcutting disc ...............3.218

slip-joint ... . . . .. . .. . . . ............3.057

spatula .... . . . . . .. .. . . . . ..........3.035

spear drill . . . . . . .. . .. . . . ..........3.091

spherico/cylindrical head;round-endedcylindrical head ..........3.118

spherical head with collar ...3.130

spoon excavator .... . .........3.052

standard position foridentification of hand-held cutting instrument ..3.047

standard position forobservation of dentalelevators (S. P.O.) ... ...3.284

stem, .... .. . ... . .. . .. .. . ............3.283

straight elevator .... .. .. ........3.285

straight hand-held cuttinginstrument .... . .. . .. . ......3.O37

surgical bur .... . . . .. . ...........3.267

syndesmotome ...... . . .........3.O3l

T

tangential cutting disc .......3.215

tapered screw chuck ........3.207

teeth separator ..... . . . ........3. O33

transverse oval head ........3.127

trephine . ... . .. . . . .. . . ........ . . ..3.l23

trephine with circularwindow ...... . . .. . . . .......3.O98

trephine windowed ..... .......3.O97

truncated, conical, domed ...3.159

truncated, conical, domed,side cutting only .........3.161

truncated, conical, pointed ....3.160

truncated, conical, sidecutting only .... . . . . .......3.l58

twist-drill . . .. . . . . . . . . . ............3.092

typeofshank ... .. . . . .. . .......3.O85

w

wax bur .... . . . . . . . . . . . . . .........3.277

wax scraper, cylindricaldouble-edged ..... .......3.273

wax scraper, cylindricalfour edged .................3.274

wax scraper, straightsingle-edged ..... .. . ......3.272

wax scraper, invertedconical, truncated, withtruncated conical endsymmetrical,double-edged ..... ........3.271

wax scraper, truncated,conical, single-edged ...3.275

wax scraper, ogival,three-edged ..... . . . .....3.276

wheel, end cutting only .......3.l49

wheel head recessed,with convex rim ..........3.l44

wheel head, pointed .........3.136

wheel head with convexrim, shouldered ..........3.146

wheel head with collar ......3.137

wheel head with roundedrim ..... .. . .. . .. . . . . ..........3.l45

wheel head with roundededges ..... . . . . . . . . . ........3.143

wheel head, riveting .........3.138

wheel, peripheral cuttingonly .... . . . . .... . .. . ...........3.l52

wheel, rim groovedperforated .... . .. . .. . .......3.150

wheel, spoked, peripheralcutting only .... . . . . .......3.l53

working space of thedentist ..... . .. . .... . .. .......3.004

wrist-joint .... . . . . . . . . . . ..........3.058

15

Bureau of Indian Standards

B 1S is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promot(harmonious development of the activities of standardization, marking and quality certification of goods ancattending to connected matters in the country.

Copyright

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the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing thestandard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating tocopyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded: if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue

of ‘BIS Catalogue’ and ‘Standards : Monthly Additions’.

This Indian Standard has been developed from Doc : No. MHD8(2315 ).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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