Protaper endodontic system

Protaper endodontic system

1. Protaper Endodontic System Supervised by : Dr - Zainab By: Dr -Faisal Y ossef F aisal

2. Tapering The progressively tapered design improves flexibility, Cutting efficiency and the safety of these files . Change percentage of taper over the length of cutting blades (unique feature ).

3. Cross-Section Convex triangular. Decreases friction between blades of file and canal wall. Increasing its cutting efficiency.

4. Ti p modified guiding tip. rounded, non-cutting Better follow the canal. loose debris into the intrablade flutes.

5. Variable tip diameters of ProTaper file allows it to have specific cutting action in defines area of canal without stressing instrument in other sections.

6. Benefits of design: Increased flexibility Each instrument produces as larger tapers make way for smaller tapers. Protaper files engage a smaller area of dentine reducing torsional loads and file fatigue

7. Protaper Files The ProTaper system consists of just three s hapin g an d f iv e fi n ishin g files

8. ProTaperfor Hand Use Clinical Procedures Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file

9. ProTaperfor Hand Use Clinical Procedures Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Insert file with slight apical Pressuer until resistance ½ turn clockwise ½ turn anticlockwise Withdraw Clean

10. Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Coronal Flaring w/ SX (optional) using same motion May replace w/ GG Drill

11. Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Coronal Flaring w/ SX Working Length Determination

12. Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Coronal Flaring w/ SX Working LengthDetermination Coronal 1/3 Preparation w/ S1 again(up to full working length) using same motion

13. Middle 1/3 Preparation w/ S2 (up to full working length) using same motion Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Coronal Flaring w/ SX Working LengthDetermination Coronal 1/3 Preparation w/ S1

14. Explore Canal w/ #10 hand file Negotiate to #15 w/ hand file Coronal Flaring w/S1 Coronal Flaring w/ SX Working LengthDetermination Coronal 1/3 Preparation w/ S1 Middle 1/3 Preparation w / S2 Apical 1/3 Preparation w/ F1 & F2, using the same motion

15. For larger canals, continue apical prep w/ F3, using also the same motion

16. Rotary system Protaper nickle-titaninm rotary files substantially simplify root canal preparation,particularly in curved and restricted canals

17. Guidel i n es Frequently clean & inspect files Use only in well irrigated canals Never force instruments Recommended speed is 150 to 350 rpm

18. Retretment