endo instruments
TRANSCRIPT
ENDo_0Prepared by : Osama Ahmad Almasry ..
Level 7
Course Director : Dr . M. Altammimi
Goals of Root canal instruments
•To provide biologic environment to healing
•To develop canal shape to healing
Endo instruments ::
•1 Hand instruments
“ mouth mirror , Endo Explorer , Endo excavator , Endo plugger , Locking pliers , plastic instrument , Spreader “
•2 Instruments for pulp space preparation
Group I Hand & finger operated instruments ( Barbed broach , Rasps , K files , Hedstrom file )
Group II Low speed instruments
Group III Engine driven instruments of similar to group one
Types of files ::
•Traditional : carbon steel
•Stainless steel
•Niti : nickel titanium
Mouth mirror
Endo Explorer
Two straight # very sharp end
For Exploration of canal orifices
Endo Explorer
Endo spreader ( Hand ) ( Finger )
For compaction of gutta percha during obturation
- Pointed tip
- Hand or finger
Endo Spreader
Finger Spreaders
Finger size # 15
Finger size # 20
Finger size # 25
Explorer vs spreader
Explorer spreader
Endo Excavator
- Much longer offset from long axis
- Sharp to cut pulp tissue
Locking pliers
Grooves to hold paper point
And Gutta percha points
College Pliers
Perry Pliers
Fine tip for work within small pulp chamber
Plastic instrument
Endo plugger (hand )
- Flat tip
- Depth orientation grooves
- Hand or finger
- Can be heated
Finger pluggers can be precurved to
facilitate condensation. They are
generally used deeper in the canal
Schilder Pluggers: Note that handles used
in the School are NOT color coordinated and vary quite a bit
Heat Transfer Instruments
•Spreader – like design
•Designed for repeated heating
•Chamber roof is left in the the maxillary premolar (L). The other image (R) demonstrates what the access looks like
immediately after un-roofing the chamber. The access needs to be completed with a tapered diamond
Gates-Glidden Bur
Pesso Reamers
•/
Lentulo Spirals
Endo File
Endodontic Files
k-file #15-40 25mm length
k-file #15-40 31mm length
K-file #45-80 25mm length
K-file #10 25mm length
K-file #10 31mm length
Hedstrom Files (H- file)
#15-40
Barbed broaches
Gutta percha
Paper point
Sealer
REAMER
The angle between the long-axis and the cutting blade is small,
which is why preparation by reamer is effective only in rotating motion.
REAMERA reamer is manufactured from a triangular or square steel wire
that is twisted to give the typical shape of a reamer.
K-FILE K-files are manufactured from square or sometimes triangular
steel wire that is twisted to give the typical shape of a K-file.
The angle The tip of the instrument is cutting
which makes the K-file best suited
for the preparation
of straight canals.
between the long-axis and the cutting blade
is greater than in a reamer,
FLEXOREAMER Flexoreamers are manufactured from a triangular steel wire
that is twisted to give the typical shape of a reamer
The angle between the long-axis
and the cutting blade is small,
and therefore
preparation by flexoreamer is
effective only in rotatory motion.
FLEXOFILE
Flexofiles are manufactured from triangular (note!) steel wire that is
twisted to give the typical profile of a K-file.
The angle between the long-axis
and the cutting
blade is bigger than in reamers,
which is why
preparation by flexofile is effective
both in rotating motion and in filing motion
(up and down movement)
HEDSTR0EM FILE
The angle between the long-axis
and the cutting blade
is close to right angle,
which is why preparation by Hedstroem files
is effective only
when using
a filing motion (up and down movement).
Hedstroem files are manufactured from round steel wire by grinding.
NITI NiTiflex-files are manufactured from nickel-titan wire
that is ground to give the typical profile of a K-file.
The angle between the long-axis and
the cutting blade
is bigger than in reamers,
and therefore preparation
by NiTiflex-file is effective
both in rotating motion
and in filing motion
(up and down movement).
Total of 6 radiographs will be taken
and mounted for each case.
•Preoperative radiograph (without rubber dam).
•Working length radiograph (with rubber dam).
•Master apical file radiograph (with rubber dam).
•Master cone radiograph (with rubber dam).
•Intermediate radiograph (with rubber dam).
•Final radiograph (without rubber dam).
A Diagnostic Endodontic Film requires that:
The tooth is centered on the film.
At least 5mm of bone beyond the apex of the tooth is visible.
The image is as anatomically correct as possible.
To be continued ..
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