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Presented by:Josef Ma. Karlos S. Bringas, D.M.D., D.D.S., M.S.Department of Endodontics
Obturation: Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
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.
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2006 J.Bringas, DMD, DDS, MS
Medium Fine Finger Spreader
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2006 J.Bringas, DMD, DDS, MS
Gutta Percha – Master Cones
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2006 J.Bringas, DMD, DDS, MS
Iris Scissors
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2006 J.Bringas, DMD, DDS, MS
Gutta Percha – Accessory Cones
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2006 J.Bringas, DMD, DDS, MS
Medium Fine Accessory Cones
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2006 J.Bringas, DMD, DDS, MS
Paper Points (absorbent points)
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2006 J.Bringas, DMD, DDS, MS
Endodontic Cotton Pliers
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2006 J.Bringas, DMD, DDS, MS
Mirror and Handle
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2006 J.Bringas, DMD, DDS, MS
Handle with mm Ruler
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2006 J.Bringas, DMD, DDS, MS
Spatula and Mixing Pad
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2006 J.Bringas, DMD, DDS, MS
Endodontic Sealer
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2006 J.Bringas, DMD, DDS, MS
Glick #1 Instrument
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2006 J.Bringas, DMD, DDS, MS
Endodontic Pluggers (5/7 & 9/11)
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2006 J.Bringas, DMD, DDS, MS
Completed C&S
• The canal system should be properly tapered in a continuous funnel shape allowing debridement, irrigation and obturation.
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2006 J.Bringas, DMD, DDS, MS
Completed C&S
Note your FWL.
*FWL is 1mm short of patency length.
Example:• FWL=23mm
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2006 J.Bringas, DMD, DDS, MS
Obturation
• The canal is obturated to Final Working Length.
• Obturation Length = FWL
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2006 J.Bringas, DMD, DDS, MS
Obturation
• The canal is obturated to Final Working Length.
• Obturation Length = FWL
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2006 J.Bringas, DMD, DDS, MS
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.
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
Spreader fit
• Fit within 1-2mm of FWL.
• If not, more shaping is required because apical size and taper is inadequate.
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2006 J.Bringas, DMD, DDS, MS
• Select Master Cone size that corresponds to your MAF size.
• Ex. MAF size 30
• MC size should also be size 30.
Master Cone Fit
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2006 J.Bringas, DMD, DDS, MS
• The Master Cone should seat to final working length.
• Obturation length= FWL
Master Cone Fit
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
Check Master Cone (MC) Length
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2006 J.Bringas, DMD, DDS, MS
Master Cone Fit
• If MC is at FWL, you are ready to obturate.
23
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2006 J.Bringas, DMD, DDS, MS
Master Cone is Long
• Cut the Gutta Percha tip to correct the discrepancy to avoid overextension.
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2006 J.Bringas, DMD, DDS, MS
Master Cone is Short
• Cleaning and shaping is rechecked.
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2006 J.Bringas, DMD, DDS, MS
MC is short
• Reinsert MAF file.
• Sometimes, dentin filings prevents it from seating to FWL.
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2006 J.Bringas, DMD, DDS, MS
Reshape
• Check to see if MAF goes to FWL.
• Go through hand filing procedure.
• Sometimes, repeating C&S with rotaries is necessary.
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2006 J.Bringas, DMD, DDS, MS
Refit MC
• After filing with the MAF to FWL, the selected Master Cone should fit to proper FWL also.
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2006 J.Bringas, DMD, DDS, MS
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.
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2006 J.Bringas, DMD, DDS, MS
Mark the Master Cone to FWL
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2006 J.Bringas, DMD, DDS, MS
Mark the Master Cone to FWL
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2006 J.Bringas, DMD, DDS, MS
Place MC in the canal system.
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2006 J.Bringas, DMD, DDS, MS
Mark should correspond to reference point.
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2006 J.Bringas, DMD, DDS, MS
Take a Radiograph
• Master Cone 4th of 6
• Show radiograph to instructor.
• Dry the canal and you are now ready to obturate.
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Mix the Sealer
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2006 J.Bringas, DMD, DDS, MS
Sealer Placement
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2006 J.Bringas, DMD, DDS, MS
Sealer Placement
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2006 J.Bringas, DMD, DDS, MS
Sealer Placement
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Advance the spreader with a watch winding motion as pressure is applied in an apical direction.
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Advance the spreader with a watch winding motion as pressure is applied in an apical direction.
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Advance the spreader with a watch winding motion as pressure is applied in an apical direction.
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Remove the spreader with the same watch winding motion.
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Immediately insert a premeasured and coated MF accessory cone into the space created by the spreader.
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• Insert to resistance.
• This should be done as quickly as possible to prevent voids.
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2006 J.Bringas, DMD, DDS, MS
• Repeat this procedure of finger spreader insertion alternated with accessory cone placement.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
• Repeat this procedure of finger spreader insertion alternated with accessory cone placement.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
• Repeat this procedure of finger spreader insertion alternated with accessory cone placement.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
• Repeat this procedure of finger spreader insertion alternated with accessory cone placement.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
• Repeat this procedure of finger spreader insertion alternated with accessory cone placement.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
• Do this until the canal is obturated to the cervical line.
• Take a radiograph at this time and evaluate fill.
• This confirms adequacy of the obturation.
Lateral Compaction
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2006 J.Bringas, DMD, DDS, MS
Lateral Compaction
• If the obturation is satisfactory, the excess gutta percha should be cut to the CEJ level (bucco-lingual).
• If obturation is not dense, or if voids are present, remove all the cones and redo the obturation process.
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
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2006 J.Bringas, DMD, DDS, MS
Final Radiograph• Remove the
rubber dam clamp and rubber dam material and take the radiograph.
*In a real patient, a temporary restoration is placed before rubber dam is removed.