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Cleaning & Shaping

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  1. Cleaning & Shaping Presented by: Josef Ma. Karlos S. Bringas, D.M.D., D.D.S., M.S. Department of Endodontics

  2. Endo Guards

  3. Prerequisites 1. Record the following information: • Length of root in mm = PATENCY LENGTH b. Working length (WL) = (Length of root) – 1.0 mm c. Master Apical Rotary (MAR) length = WL – 1.0 mm = (Length of root) – 2.0 mm

  4. Lengths • Record the following: • Tooth length • WL • MAR length

  5. Lengths • Record the following: • Tooth length • WL • MAR length

  6. Lengths 23 mm • Record the following: • Tooth length: 23mm • WL • MAR length

  7. Lengths 22 mm • Record the following: • Tooth length: 23mm • WL: 22mm • MAR length

  8. Lengths 21 mm • Record the following: • Tooth length: 23mm • WL: 22mm • MAR length: 21mm

  9. Prerequisites 1. Record the following information: a. Length of root in mm = PATENCY LENGTH b. Working length (WL) = (Length of root) – 1.0 mm c. Master Apical Rotary (MAR) length = WL – 1.0 mm = (Length of root) – 2.0 mm 2. Patency.

  10. Patency • Set the stops to Patency Length. #10 #15

  11. Patency 23 mm • Set the stops to Patency Length. #10 #15

  12. Patency • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  13. Patency • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #15 #10

  14. Patency • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  15. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  16. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  17. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  18. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  19. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #15 #10

  20. Patency 23 mm • Determine if a #10 or #15 hand file can be inserted to the apical terminus. • Always use RC Prep. #10 #15

  21. Steps of C&S ( Technique) • Rotary file cleaning and shaping. 2. Apical preparation.

  22. Steps of C&S ( Technique) • Rotary file cleaning and shaping. • 35/.12 • 20 series • 30 series 2. Apical preparation.

  23. Coronal Preparation • Use the ProFile GT .35/.12, 17mm file. • The color band denotes size. • Green band means a size 35.

  24. Coronal Preparation • Use the ProFile GT .35/.12, 17mm file. • The color band denotes size. • Green band means a size 35. • Each band denotes 0.02mm of taper, • thus 6 x (0.02) = 0.12mm taper.

  25. Use of Rotary Handpiece • Use 8:1 gear reduction attachment. • Run at constant speed: • 35 0.12 (500 rpm’s) • 20 series & 30 series (300 rpm’s) • USE LIGHT PRESSURE.

  26. Use of Rotary Handpiece • Start the handpiece before entry into the canal and maintain at a constant rpm’s. • The file should not be in contact with canal walls for more than 5 seconds. • Advance the file slowly and carefully in 0.5 -1.0 mm increments using constant light pressure. • NEVER FORCE A FILE IN A CANAL.

  27. 35/.12 • Hand fit file to binding point.

  28. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm.

  29. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm.

  30. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  31. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  32. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  33. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  34. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  35. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments.

  36. 35/.12 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 1mm increments. 2mm advancement accomplished

  37. Recap • Irrigate with NaOCl • Recapitulate with #15 file. Length should reach to entire length of the tooth. Ex. 23mm

  38. Recap 23 mm • Irrigate with NaOCl • Recapitulate with #15 file. Length should reach to entire length of the tooth. Ex. 23mm

  39. Rotary File Instrumentation • Use of 20 series Profile GT

  40. 20/.10 • Hand fit file to binding point.

  41. 20/.10 • Hand fit file to binding point.

  42. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm.

  43. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm.

  44. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 0.5 - 1mm increments.

  45. Stop usage of file after: 21 mm • 2mm advancement. • File stalls twice. • File advancement to MAR length. • Ex: MAR = 21mm

  46. Stop usage of file after: 21 mm • 2mm advancement. • File stalls twice. • File advancement to MAR length. • Ex: MAR = 21mm

  47. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 0.5 - 1mm increments.

  48. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 0.5 - 1mm increments.

  49. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 0.5 - 1mm increments.

  50. 20/.10 • Hand fit file to binding point. • Back-up stopper by 1-2mm. • Attach file to handpiece and advance apically in 0.5 - 1mm increments.