Accuracy of 3D dynamic navigation system for fiber post retrival from RC treated teeth
In vitro study
Keywords:
dynamic navigation system, fiber posts, root canal–treated teethAbstract
Introduction: Removing fiber posts from root canal–treated teeth is inherent to tooth loss and time consuming. Hence in our study we aim to investigate the accuracy and efficiency of the 3-dimensional dynamic navigation system (DNS) compared with the freehand technique (FH) when removing fiber posts from root canal–treated teeth. Material and Methods: We compared the extracted single rooted teeth prepared with post and build with core. We divided 40 teeth equally as DNS & FH. We compared Global coronal and apical deviations, angular deflection, operation time, and volumetric tooth loss, keeping the p<0.05 as significant. Results: The DNS group showed significantly lower global coronal and apical deviations and angular deflection than the FH group (P < .05). DNS required less operation time than FH. Moreover, the DNS technique had significantly less volumetric loss of tooth structure than the FH technique (P < .05).Conclusions: The DNS was more precise and effective in removing fiber posts from root canal–treated teeth than the FH technique.
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