Root Canal System The complexity of the root

Reengineering § § § Flexipost cemented in palatal canal – removed with ultrasonic tip

Reengineering § § § post removed – all canals identified and negotiated Class I

Reengineering § § canals shaped, cleaned and obturated gutta-percha sealing to level of orifice

Reengineering § § § dentinal adhesive (PQ 1) used in conjunction with Permaflo to

$Reengineering § § fracture of the mesialbuccal root became apparent on resection – common$

Reengineering The unexpected loss of the tooth is unfortunate for the patient, however, it

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Root Canal “System” The complexity of the root canal system cannot be underestimated. All portals of exit must be sealed to ensure elimination of peri-radicular pathology

Reengineering § § § Flexipost cemented in palatal canal – removed with ultrasonic tip MB 2 orifice not identified during previous procedure contaminants evident in all canals

Reengineering § § § post removed – all canals identified and negotiated Class I inlay preparation initiated for Ni. Ti file accessibility and straight line access heated Na. OCl (150 o F) and EDTA left to soak in chamber and canal system throughout procedure

Reengineering § § canals shaped, cleaned and obturated gutta-percha sealing to level of orifice interface with chamber floor bristle brush and ethanol used to remove sealer from chamber then etched with phosphoric acid in preparation for sealing of the chamber floor and canal orifices

Reengineering § § § dentinal adhesive (PQ 1) used in conjunction with Permaflo to create bonded composite layer over the canal entrances to the root canal system as well as close any furcal canals further layering of core material can be applied after micro-etching chamber surface bonded core depth is sufficient to preclude need for post placement

$Reengineering § § fracture of the mesialbuccal root became apparent on resection – common$

Reengineering § § fracture of the mesialbuccal root became apparent on resection – common with amalgam retrogrades not placed with ultrasonics distal-buccal apex was weakened by original retropreparation and resection to stable surface shortened root and precluded predictability of trisection

Reengineering The unexpected loss of the tooth is unfortunate for the patient, however, it does demonstrate how the biologic imperative is the foundation for all we do.