Volume 14, Issue 1 (March- 2025)
Caspian J Dent Res 2025, 14(1): 49-58 |
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Ethics code: IR.MUBABOL.HRI.REC.1397.197
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Mousevi M, Harandi A, Moudi E, Gholinia H, Soleymani A. Impact of Endodontics access Cavity Design on Canal Transportation Centering Ability in Mandibular Molar: An Ex Vivo study. Caspian J Dent Res 2025; 14 (1) :49-58
URL: http://cjdr.ir/article-1-488-en.html
URL: http://cjdr.ir/article-1-488-en.html
Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, I.R.Iran. , soleymani_ali@yahoo.com
Abstract: (218 Views)
Introduction: The Contracted Endodontic Cavity (CEC) design emphasizes preserving tooth structure as an alternative to the Traditional Endodontic Cavity (CTE) design. However, this approach may result in canal transportation and reduced centering ability during cleaning and shaping. The aime of this study was to evaluate the effect of the CEC design on canal transportation and centering ability in mandibular molars using Cone-Beam Computed Tomography (CbCT).
Materials & Method: In this ex vivo study, 30 mandibular molar with matures roots and close apices were randomly assigned to two groups: TEC and CEC. All roots canal were cleaned and shape. Canal transportation and centering ability were assessed at 1-, 3-, and 5-millimeter intervals from the apex, follow Gambill's method. Data were analyze using the Kruskal-Wallis and Mann-Whitney tests.
Result: Canal transportation was significant greater in the CEC group compared to the TEC groups for both mesio-buccal and distal canals at 1 mm (P=0.04 and P=0.22, respectively), 3 mm (P=0.021 and P=0.019, respectively), and 5 mm (P=0.004 and P= 0.013, respectively) from the apex. In contrast, centering ability was significantly lower in the CEC group compared to the TEC group for both mesio-buccal and distal canals at 1 mm (P=0.011 and P=0.032, respectively), 3 mm (P=0.035 and P=0.001, respectively), and 5 mm (P=0.005 and P=0.001, respectively) from the apex. No significant differences in canal transportation or centering ability were observed between the mesio-buccal and distal canals within each groups, nor at different level within the same canal.
Conclusions: According to the results of the present study, the TEC design provides better preservation of canal anatomy during the cleaning and shaping process.
Materials & Method: In this ex vivo study, 30 mandibular molar with matures roots and close apices were randomly assigned to two groups: TEC and CEC. All roots canal were cleaned and shape. Canal transportation and centering ability were assessed at 1-, 3-, and 5-millimeter intervals from the apex, follow Gambill's method. Data were analyze using the Kruskal-Wallis and Mann-Whitney tests.
Result: Canal transportation was significant greater in the CEC group compared to the TEC groups for both mesio-buccal and distal canals at 1 mm (P=0.04 and P=0.22, respectively), 3 mm (P=0.021 and P=0.019, respectively), and 5 mm (P=0.004 and P= 0.013, respectively) from the apex. In contrast, centering ability was significantly lower in the CEC group compared to the TEC group for both mesio-buccal and distal canals at 1 mm (P=0.011 and P=0.032, respectively), 3 mm (P=0.035 and P=0.001, respectively), and 5 mm (P=0.005 and P=0.001, respectively) from the apex. No significant differences in canal transportation or centering ability were observed between the mesio-buccal and distal canals within each groups, nor at different level within the same canal.
Conclusions: According to the results of the present study, the TEC design provides better preservation of canal anatomy during the cleaning and shaping process.
Type of Study: Research Paper |
Subject:
Endodontics
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