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ePaper created 2017-09-12, 09:26:18 | version 1.38.0
treating complex root canal anatomy case report | Figs. 5a & b: Selection of the tooth to be examined. Fig. 5a Fig. 5b Pre-endodontic restoration At a following visit, the tooth was anaesthetised, and a rubber dam placed. The temporary filling mate- rial was removed, revealing evidence of caries as in- dicated by caries indicator solution (Fig. 15). The caries was removed and the pulp was exposed (Fig. 16). A pre-endodontic restoration was performed using the Palodent V3 matrix system (Dentsply Sirona; Fig. 17) in combination with SDR bulk fill flowable resin (Dentsply Sirona) and ceram.x SphereTEC one com- posite resin (Dentsply Sirona; Fig. 18). After the pre- endodontic restoration, an access cavity was prepared and the canals were located under magnification. Canal negotiation and glide path preparation The pulp chamber was filled with Glyde (Dentsply Sirona) before the canals were carefully negotiated to full working using pre-curved size 08 K-Files (Fig. 19). Working length measurements obtained from an electronic apex locator reading corresponded with the lengths obtained from the 3D Endo Software. These measurements were also confirmed radio- graphically (Fig. 20). A reproducible glide path was prepared in each root canal system with the size 08 K-File in an M4 Reciprocating hand piece (Sybron Endo; Fig. 21), followed by making a size 10 K-File ‘super loose’ (Fig. 22). A ProGlider (Dentsply Sirona) Fig. 6: Identification of the palatal canal orifice and radiographic apical foramen. Fig. 7: The 3D Endo Software proposal of the canal anatomy that can be corrected by the operator, according to the canal configuration viewed in different planes in the software. In most cases, the proposal is very good but in this case it was not accurate because of the multi-planar canal anatomy. Fig. 6 Fig. 7 roots 3 2017 25