PubMed · 2017 · 26 citations · 46 references
DentistryEndodonticsOral RadiologyEndodontic InstrumentationEndodontic SurgeryRoot Canal TherapyApical PreparationRoot Canal AnatomyRoot Canal Anatomy ImagingRoot Canal Morphology AssessmentRoot Canal ObturationThree-dimensional Endodontic ImagingCanal Preparation InstrumentsCanal Preparation ShapeCanalsCenteringIatrogenic Endodontic ErrorsRoot Canal Morphology AnalysisRoot Canal Treatment EvaluationRoot Dentine Translucency
INTRODUCTION: Transportation is an important iatrogenic endodontic error which might cause failure. This study evaluated the canal transportation caused by Neoniti and ProTaper instruments, using cone-beam computed tomography (CBCT) cross sections. METHODS AND MATERIALS: =20) that were prepared using either Neoniti or ProTaper files. An endodontist prepared the canal according to the manufacturer's guidelines. Prepared canals were re-scanned. The pre-instrumentation and post-instrumentation CBCT volumes were sectioned at 1 to 9-mm distances from the apex. The extent of canal dentine removal in mesial and distal directions were measured in each cross-section. Canal transportation and instrument centering ability were estimated based on the extents of root wall removal and were compared in both groups. RESULTS: >0.05). CONCLUSION: Neoniti and ProTaper instruments might have proper centering ability and minimum transportations. Both instruments might cause similar extents of transportation and centering abilities.
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