Obturation: Lateral Compaction - PowerPoint PPT Presentation

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Obturation: Lateral Compaction

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  1. Obturation: Lateral Compaction Presented by: Josef Ma. Karlos S. Bringas, D.M.D., D.D.S., M.S. Department of Endodontics

  2. Objectives of Obturation • Create a complete seal of the entire root canal system by eliminating all avenues of leakage from the oral cavity or the periradicular tissues into the root canal system. • To seal within the system any irritants that cannot be fully removed during canal cleaning and shaping procedures.

  3. Medium Fine Finger Spreader

  4. Gutta Percha – Master Cones

  5. Iris Scissors

  6. Gutta Percha – Accessory Cones

  7. Medium Fine Accessory Cones

  8. Paper Points (absorbent points)

  9. Endodontic Cotton Pliers

  10. Mirror and Handle

  11. Handle with mm Ruler

  12. Spatula and Mixing Pad

  13. Endodontic Sealer

  14. Glick #1 Instrument

  15. Endodontic Pluggers (5/7 & 9/11)

  16. Completed C&S • The canal system should be properly tapered in a continuous funnel shape allowing debridement, irrigation and obturation.

  17. Completed C&S Note your FWL. *FWL is 1mm short of patency length. Example: • FWL=23mm

  18. Obturation • The canal is obturated to Final Working Length. • Obturation Length = FWL

  19. Obturation • The canal is obturated to Final Working Length. • Obturation Length = FWL

  20. Spreader Fit • To check satisfactory apical cleaning and shaping before obturation. • To see if there is enough room for compaction with the selected finger spreader. (size: medium fine MF) • Set rubber stop 1-2mm short of FWL.

  21. Spreader fit • Fit within 1-2mm of FWL. • If not, more shaping is required because apical size and taper is inadequate.

  22. Master Cone Fit • Select Master Cone size that corresponds to your MAF size. • Ex. MAF size 30 • MC size should also be size 30.

  23. Master Cone Fit • The Master Cone should seat to final working length. • Obturation length= FWL

  24. Check Master Cone (MC) Length

  25. Master Cone Fit • If MC is at FWL, you are ready to obturate. 23

  26. Master Cone is Long • Cut the Gutta Percha tip to correct the discrepancy to avoid overextension.

  27. Master Cone is Short • Cleaning and shaping is rechecked.

  28. MC is short • Reinsert MAF file. • Sometimes, dentin filings prevents it from seating to FWL.

  29. Reshape • Check to see if MAF goes to FWL. • Go through hand filing procedure. • Sometimes, repeating C&S with rotaries is necessary.

  30. Refit MC • After filing with the MAF to FWL, the selected Master Cone should fit to proper FWL also.

  31. Master Cone Fit • The MC should have a definite apical resistance when MC is placed to FWL. • The MC should exhibit “tugback” or resistance to removal.

  32. Mark the Master Cone to FWL

  33. Mark the Master Cone to FWL

  34. Place MC in the canal system.

  35. Mark should correspond to reference point.

  36. Take a Radiograph • Master Cone 4th of 6 • Show radiograph to instructor. • Dry the canal and you are now ready to obturate.

  37. Mix the Sealer