intro clsfcn of fpd raslath

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INTRODUCTION &

CLASSIFICATION OF RPD



DEFINITION- PROSTHODONTICS

Defined as the “branch f dentistr!

"ertainin# t the restratin and

$aintainence f ra%

fnctin'c$frt'a""earance and

hea%th f the "atient b! restratin f

natra% teeth r the re"%ace$ent f

$issin# teeth and cnti#s ra% and$a(i%%facia% tisses )ith the artificia%

sbstittin*



+RANCHES

, $ar di.isins/

-fi(ed "rsthdntics

-$a(i%%facia% "rsthetics-re$.ab%e "rsthdntics

c$"%ete "artia%

e(tracrna% intracrna%



RE0O1A+LE PROSTHODONTICS

It is de.ted t re"%ace$ent f $issin#

teeth & cnti#s tisses )ith "rsthesis

desi#ned t be re$.ed b! the )earer*It

inc%des t) disci"%ines/ re$.ab%ec$"%ete dentre "rsthdntics and

re$.ab%e "artia% dentre "rsthdntics*

A RPD $a! be e(tracrna% r intracrna%

de"endin# n )hat t!"e f retentin issed t 2ee" it in the $th*



TER0INOLO3IES USED IN RPD

Appliance it is a device worn by a patient in the course

of treatment. e.g. orthodontic appliance,surgical,space maintainer.

Abutment “atooth,aportion of a tooth ,or that portion of a

dental implant that serves to support & or retain a prosthesis.”

Retainer the fixation device ,or any form of attachment

applied directly to an abutmenttooth & used for thefixation of a prosthesis,is called retainer.



Extracoronal partial denture the retentin f this "rsthesis de"ends n

the e(act "ara%%e%is$ f the t) retenti.e nits*

Tooth supported RPD a "artia% dentre that recei.es s""rt fr$

the natra% teeth at each end f the edent%ss"ace r s"aces*

Tooth tissue supported RPDThe dentre base that e(tends anterir%!4 "sterir%!

and is s""rted b! teeth at ne end and tisse nthe ther end 5 dista% e(tensin "artia% dentres*



Temporary removable partial

denture

the! are sed in "atient )here tisse

chan#es are e("ected' )here a "er$anent

"rsthesis cannt be fabricated ti%% the

tisses stabi%ai6e*

Interim denture It is a te$"rar! "artia% dentre sed fr a

shrt "erid t f%fi% aesthetics' $asticatin

r cn.enience nti% a $re definit fr$ f

treat$ent can be rendered*



Transitional denture

0a! be sed )hen %ss f additional teethis ine.itab%e bt i$$ediate e(tractin is nt

ad.isab%e r desirab%e* Artificia% teeth $a!be added t the transitina% dentre as and)hen the natra% teeth are e(tracted*

Treatment denture

It is sed as a career fr treat$ent $ateria%*It is sed )hen the sft tisses ha.e beenabsed b! i%%fittin# "rsthetic de.ices*



Centric relation

it is the $st "sterir re%atin f

$andib%e t the $a(i%%a at the estab%ished

.ertica% di$ensin fr$ )hich %atera%

$.e$ents c%d be $ade*

Intracoronal partilal denture



Indicatins fr RPD

Len#th f edent%s/ RPD "referred fr%n#er edent%s arches*

A#e/

Abt$ent tth/ )hen there is n tth"sterir t the edent*s"ace t act as anabt$ent' a RPD is "referred*

Peridnta% s""rt f re$ainin# teeth/ )henit is "r RPD is "referred becase it re7ires

%ess s""rt fr$ the abt$ent teeth*Crss arch stabi%i6atin/ )hen a re$ainin#teeth ha.e t be stabi%i6ed a#ainst %atera% andanterir-"sterir frces' a RPD is indicated*



E(cessi.e bne %ss*

Aesthetics*

I$$ediate tth re"%ace$ent aftere(tractin*

E$tina% "rb%e$s

Patient desires



RPD is #enera%%! "referred in the

f%%)in# cnditins/

8hen $re than 9 "sterir teeth r :anterir teeth are $issin#*

If the canine & t) f its adacent teeth are$issin#*

8hen there is n dista% abt$ent tth*

Presence f $%ti"%e edent*s"aces*

If the teeth adacent t edent*s"aces areti""ed 'the! cannt be sed as anabt$ent fr a fi(ed "rsthesis*

If "eridnta%%! )ea2ened teeth are "resentnear the edent*s"aces*



Teeth )ith shrt c%inica% cr)ns*

Insfficient n/f abt$ents

Se.ere %ss f tisse n theedent*s"ace*

O%d "atients



Re7ire$ents f an acce"tab%e

$ethd f c%assificatin *

It sh%d "er$it i$$ediate

.isa%isatinf the t!"e f "artia%%!

edent*arch that is bein# cnsidered*

It sh%d "er$it i$$ediate

differentiatin b4) the tth s""rted

& the tth and tisse s""rted

RPD*

It sh%d be ni.ersa%%! acce"tab%e*



CLASSIFICATION

Kennedy's classificationDr* Ed)ard ;enned! "r"sed this

c%assificatin in <=9,*

-$st ""%ar c%assificatin*



A""%e#ate>s r%es

R%e </ c%assificatin sh%d f%%) ratherthan "recede e(tractins that $i#ht a%ter theri#ina% c%assificatin*

R%e 9/ if the third $%ar is $issin# and ntt be re"%aced' it is nt cnsidered in thec%assificatin*

R%e ,/ if the third $%ar is "resent and is tbe sed as an abt$ent' it is cnsidered in

the c%assificatin*R%e :/ if the secnd $%ar is $issin# and isnt t be re"%aced' it is nt cnsidered in thec%assificatin*



R%e ?/ the $st "sterir edent%s area rareas a%)a!s deter$ine the c%assificatin*

R%e @/ edent%s areas ther than thse' )hichdeter$ine the c%assificatin' are referred t as

$dificatin s"aces and are desi#nated b! theirn/

R%e / the e(tend f the $dificatin is ntcnsidered' n%! the n/ f edent%s areas' i*e*the n/ f teeth $issin# in the $dificatin s"acesis nt cnsidered n%! the n/ f additina%edent%s s"aces are cnsidered*



R%e B/ there can be n $dificatin

areas in c%ass I1* +ecase an!

additina% edent%s s"ace )i%%

definite%! be "sterir t it and )i%%deter$ine the c%assificatin*



;enned!>s c%assificatin

C%ass I/ bi%atera%

edent%s areas

%cated "sterir t

the re$ainin#natra% teeth*

C%ass II/ ni%atera%

edent%s areas%cated "sterir t

the re$ainin#

natra% teeth*



C%ass III/ ni%atera%

edent%s area )ith

natra% teeth anterir

and "sterir t it' i*e*

this indicates a sin#%eedent%s area )hich

desn>t crss the

$id%ine f the arch'

)ith teeth "resent nbth sides f it*



C%ass I1/ sin#%e'

bi%atera% edent%s

area %cated anterir

t the re$ainin#

natra% teeth* This is asin#%e edent* area'

)hich crsses the

$id%ine f the arch'

)ith re$ainin# teeth"resent n%! "sterir

t it*



A""%e#ates $dificatin <=@

A""%e#ate $dified the ab.e

c%assificatin based n the cnditin

f the abt$ent t inc%de 9 r $re

additina% #r"s/



C%ass 1/ edent* area

bnded anterir%!

and "sterir%! b!

natra% teeth bt in

)hich the anterirabt$ent e*#* LI is

nt sitab%e fr

s""rt* It is basica%%!

a c%ass III sitatin frthe anterir abt$ent

cannt be sed fr an!

s""rt*



C%ass 1I/ edent* areain )hich the teethad*t the s"ace areca"ab%e f tta%

s""rt f the re7ired"rsthesis* Thisdentre hard%!re7ires an! tisses""rt* 0st f the

RPDs are tth tisses""rted* Hence thiscnditin is c%assifiedas a se"arate #r"*



+ec2ett & 8i%sn>s c%assificatin

The! decided that the f%%)in# $stbe cnsidered )hi%e deter$inin# the"r""rtinate a$nt f s""rt

"r.ided b! the teeth & tisse*athe 7a%it! f abt$ent s""rt*bthe $a#nitde f cc%sa% s""rt*

cthe har$n! f the cc%sin*dthe 7a%it! f the $csa &resida%rid#e*



c%ass I/bnded

sadd%e*abt$ent

teeth 7a%ified t

s""rt thedentre*$csa is

nt sed fr s""rt*

C%ass II/free-end

atth-&- tisse-brne

btisse-brne*



C%ass III/bnded

sadd%e*abt$ent

teeth nt s

7a%ified t s""rtthe dentre as

described in c%assI*



+ai%!n>s c%assificatin

Pr"sed b! +ai%!n'it )as the firstc%assificatin t #i.e i$"rtance ts""rt f "artia% dentres b!

re$ainin# tisses*he sed descri"ti.e%etters %i2e A& P *A-anterirrestratins')here there are sadd%eareas antr t the <st bics"id

P-"sterir restratin' )here thereare sadd%e areas "sterir t thecanine*



Frther the! are sbc%assified as

f%%)s/

c%assI/ bnded

sadd%ent $re

than , teeth

$issin#

C%ass 9/free end

sadd%ethere is

n dista%abt$ent tth



C%ass ,/bndedsadd%e$re than ,teeth $issin#

C%ass< is tths""rted'c%ass9&,are tth-tisses""rted*In cases)here anterir &"sterir teeth are$issin# 'the c%ass f

anterir &"sterirteeth are $entinedse"erate%!'e#/A<P<'A9P<'A<P,*

intro clsfcn of fpd raslath

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