1Restorative Sciences Department (Endodontic), Taibah University, Saudi Arabia
2Dental School, Taibah University, Saudi Arabia
Introduction: Adequate knowledge of the internal canal anatomy can help in a considerable reduction of endodontics procedural errors.
Objective: To investigate the dentine thickness in the distal wall of mesial canals of mandibular first and second molars at a level of 2 mm from the base of the furcation, compare endodontically treated mandibular molars with the contralateral sound molars using CBCT.
Materials and Methods: cross-sectional study, conducted by the evaluation of patients CBCT images. 87 CBCT images used to assess the dentine thickness in the distal wall of mesial canals (danger zone) at a level of 2mm from the base of the furcation. Student t-test was used to compare the difference in dentine thickness in the lower first and second molars, in root canal treated tooth and in sound tooth.
Results: The mean thickness of danger zone in MB and ML canals in root canal treated teeth was 0.78 ± 0.30 and 0.77 ± 0.28, while in sound teeth was 1.17 ± 0.25 and 1.19 ± 0.26, respectively. The mean of dentine thickness of the danger zone in both MB and ML roots was significantly reduced after RCT compared to the sound teeth in the contralateral side (P-value = .001).
Conclusion: The outcomes confirm the importance of avoiding over instrumentation to minimis the possibility of strip root perforations in thin areas. The results of this study can be utilized to enhance the decision-making process when selecting the most suitable instrument taper and size for a particular clinical scenario.
Keywords: CBCT; Danger Zone; Mesial Roots; Mandibular Molars
Muhannad Mohammed Hakeem., et al. "Pre and Postoperative Change in Dentin Thickness of Danger Zone in Mandibular 1st and 2nd Molars: A Cross-Sectional CBCT Study". EC Dental Science 22.7 (2023): 79-87.
© 2023 Muhannad Mohammed Hakeem., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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