COMPARATIVE EVALUATION OF REMAINING DENTIN THICKNESS POST INSTRUMENTATION WITH THREE DIFFERENT SINGLE ROTARY FILE SYSTEMS – AN IN VITRO CBCT STUDY
Aim & Objectives:Theaim of the study is to evaluate the Effective Remaining Radicular Dentin Thickness of the root canal after instrumenting with three different single rotary file systems with CBCT Imaging.
Methodology: 45 non carious intact mandibular premolars were selected for the study. Preoperative CBCT Scanning was done. Access cavity was prepared and working length determination was done. The teeth were then divided into 3 groups, Group I – Teeth instrumented with Hyflex EDM rotary file, Group II – Teeth instrumented with One curve Rotary File, Group III – Teeth instrumented with S-One Rotary File. The teeth were then prepared for CBCT Scanning. Results were evaluated and statistical analysis was done using One-way ANOVA and Tukey post hoc test.
Results: Using One way ANOVA, (p < 0.001) Highest Remaining Dentin Thickness was found in Group III, followed by Group II and Group I. Group I showed the least remaining dentin thickness when compared to Group II and Group III. All the intergroup comparisons were found to be non-significant in terms of remaining dentin thickness after biomechanical preparation using various single file systems.
Conclusion: Within the limitations of this study, Highest remaining radicular dentin thickness was found in S-One Single file system followed by One Curve file and the least remaining radicular dentin thickness was found in Hyflex EDM File system.
Keyword: Remaining Dentin Thickness, Single file system, CBCT, Biomechanical preparation