rotary endodontic protaper system

1. Dr. Mohammed Ibrahim
€ldo$ok¥

2. 21:34:33 Dr.M.Eldosoky
‫الرحيم‬ ‫الرحمن‬ ‫هللا‬ ‫بسم‬
‫العليم‬ ‫أنت‬ ‫إنك‬ ‫علمتنا‬ ‫ما‬ ‫إال‬ ‫لنا‬ ‫العلم‬ ‫سبحانك‬ ‫قالوا‬
‫الحكيم‬
‫العظيم‬ ‫هللا‬ ‫صدق‬

3. Rotary systems

5.  ProTaper nickel-titanium rotary files substantially
simplify root canal preparation, particularly in curved
and restricted canals

6. ProTaper Configurations:
1) Three shaping files --------- S X, S1 & S2
2) Three finishing files ----- ---- F 1, F 2, F3 +
3) Accessory finishing files F 4 & F 5
All files are available
in 21 mm ,25 mm and
31mm lengths.

7. File Design Features :
 ProTaper shaping instruments have a convex
triangular cross-section which reduces the contact
area between the file and dentin.
 But F-3, F-4, & F-5 has a reduced cross- sections with
a U- shape to facilitate a higher degree of flexibility

8. Shaping Files:
The S-X Shaper is an auxiliary instrument used in
canals of teeth with shorter roots or to extend and
expand the coronal aspects of the preparation, similar to
the use of Gates-Glidden drills or orifice openers.
 (Sx) has no identification ring color on its gold-colored
handle and a shorter overall length of 19 mm. The Sx has a D0
diameter of 0.19mm and a D14 diameter approaching 1.20
mm. The shaping instruments have increasingly larger
percentage tapers over the length of their cutting blades
allowing each instrument to engage, cut and prepare a
specific area of the coronal aspect of canal relocates canal
orifices resulting in straight line access. Sx has a much
quicker rate of taper between D1 and D9 as compared with
the other ProTaper Shaping files.

9. S-1 and S-2 files
 Shaping File S-1 is designed to prepare the coronal 1/3 of the
canal, whereas
 Shaping File S-2 enlarges and prepares the middle third in
addition to the critical coronal region of the apical third.

10. Finishing Files.
 The three finishing F-1, F-2, F-3 + 2 Accessory finishing
files F-4, F-5
 have been designed to plane away the variations in canal
diameter in the apical one-third.
 F-1, F-2, F-3 have tip diameters (D0) of ISO sizes 20, 25,
and 30, respectively

11.  F-4, andF-5 Accessory files are added under the name
ProTaper Universal these files has have tip
diameters (D0) of ISO sizes 40 and 50 tapers

13. Canal Preparation
1- Fill the pulp chamber with either Glyde or Sodium
Hypochlorite (NaOCl) for all initial negotiation
procedures. Explore the coronal two-thirds of the
canal with stainless steel Nos. 10 and 15 hand files,
using a reciprocating back and forth motion. Work
those instruments passively and progressively until
they are loose.

14. 2. re-irrigate
3. Using S1 to remove the crownal ledge in brushing
motion for better straight line access. it will have a
glide path of the hand file preceded it. complete
finishing the crownal area this accomplished when a
light resistance is encountered

15. 4- Re irrigate , recapitulate using file 10k to negotiate
the rest of the canal and establish patency then use
hand file 15K to confirm working length and verify a
glide path

16. 5-Use S1 to the full length it will go easily Once it
reached remove .you should never force any rotary
instrument
Irrigate , recapitulate with hand file
10 ,reirrigate

17. 6- Shaping file S-2 is now used to full working length.
Once it reached remove and Irrigate, recapitulate, and
re- irrigate.
Now the crownal 2/3 of the
canal is optimally prepared

18.  With the canal flooded with irrigant, work the F1
(yellow 20) to length in one or more passes.
 If the F1 ceases to advance deeper into the canal,
remove the file, clear its blades , then continue with its
use until it reaches length.
 Irrigate, recapitulate and re-irrigate.
Finishing files

19.  Following the use of F1 to length, gauge the foramen
with a 20 hand file. If the 20 hand file is snug at
length, the canal is shaped and ready to fill.
 If the 20 hand file is loose at length, proceed to the F2
and, when necessary, the F3, gauging after each
Finisher with the 25 and 30 hand files, respectively.