Evaluation of the Effect of Furcation Perforation on the Fracture Resistance of Endodontically Treated Mandibular Molars
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JKMU-28-5_003
تاریخ نمایه سازی: 19 دی 1401
Abstract:
Background: Root perforations are among the most common procedural complications during root canal treatment; these complications have a poor prognosis. This study aimed to evaluate the effect of furcation perforation on the fracture resistance of endodontically treated mandibular molars.Method: Sixty intact extracted mandibular molars were divided into two groups; with a marginal ridge (access only) and without a marginal ridge (MOD and access cavity preparation). The two groups underwent endodontic treatment and were divided into three subdivisions: the first group was prepared without any furcal perforation, the second group had a ۱-mm perforation in the furcation area, and the third group was prepared with a ۳-mm perforation in the furcation area. The furcation perforation site was filled with calcium hydroxide powder and covered with glass-ionomer (GI). The teeth were restored with posterior composite resin. The teeth were then mounted in acrylic blocks and tested with a Testometric machine under compressive strengths. The fracture resistance diagram of each tooth was drawn. The data were analyzed with two-way ANOVA. The fracture patterns were evaluated after separating the teeth from acrylic blocks.Results: Loss of marginal ridge had no significant effect on fracture resistance measurements (P=۰.۳۱۲), but the furcal perforation variable resulted in significant differences in fracture resistance measurements (P=۰.۰۰۴). Teeth without furcal perforation differed significantly from the teeth with a ۳-mm furcal perforation in fracture resistance (P=۰.۰۰۹). The ۱-mm furcal perforation group differed significantly from the ۳-mm furcal perforation group in fracture resistance (P=۰.۰۱۱).Conclusion: The teeth with a ۳-mm furcal perforation exhibited lower fracture resistance than the two other groups.
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Authors
Fatemah Khajehzadeh
Private Practice, Yasuj, Iran
Fatemeh Raoufinejad
Department of Restorative Dentistry, School of Dentistry, Qazvin University of Medical Sciences, Qazvin, Iran
Hedayat Gorjestani
Private Practice, Kerman, Iran
Marzie Kamali
Department of Endodontics, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
Ali Eslambol Nassaj
Department of Endodontics, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
Arash Shahravan
Endodontology Research Center, Kerman University of Medical Sciences, Kerman, Iran
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