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Long term outcomes of mandibular coronectomy satisfactory when enamel is completely removed, suggests study
A study published in the Journal of Cranio-Maxillofacial Surgery suggests that the long-term outcomes of mandibular coronectomy are satisfactory and successful when enamel is completely removed.
This study aimed to analyze post-coronectomy complications, chronological root survival rate (success rate) using Kaplan–Meier analysis, and postoperative radiographic signs for root extraction. A total of 555 mandibular third molar coronectomies were clinically and radiologically evaluated (mean follow-up period, 27.2 months; range, 1 month to 10.5 years). Complications were observed in 22 (4.0%) cases. Temporary inferior alveolar nerve damage was observed in one (0.2%) case, and 21 (3.8%) retained roots required extraction between 1 and 64 months after coronectomy due to dry socket (two cases, 0.4%), primary non-wound closure (10 cases, 1.8%), secondary root exposure (seven cases, 1.3%), and submucosal root eruption (two cases, 0.4%). Residual enamel after coronectomy was more significantly found on 13 (61.9%) of 21 extracted roots than on 30 (5.6%) of 534 surviving roots. Kaplan–Meier analysis revealed an overall survival rate of 93.8% at 5 years and 92.2% at 10 years. The 5-year survival rates differed significantly (p < 0.001) between the enamel-free (97.0%) and residual enamel-attached (58.3%) roots. The Cox proportional hazards model showed a hazard ratio of 20.87 (95% confidence interval, 8.58–50.72). The long-term outcomes of coronectomy were satisfactory, and a higher success rate is expected when the enamel is completely removed during coronectomy.
Reference:
Kenichi Kurita, Hidemichi Yuasa, Shinichi Taniguchi, Motonobu Achiwa, Mitsuo Goto, Eri Kubota, Atsushi Nakayama, Atsushi Abe. Residual enamel removal to improve outcomes of mandibular third molar coronectomy: A single-center retrospective cohort study,
Journal of Cranio-Maxillofacial Surgery. Volume 52, Issue 9, 2024, Pages 1042-1049, ISSN 1010-5182. https://doi.org/10.1016/j.jcms.2024.06.003.
(https://www.sciencedirect.com/science/article/pii/S1010518224001860)
Keywords:
Long term, outcomes, mandibular, coronectomy, satisfactory, successful, enamel, completely, removed, suggests, study, Journal of Cranio-Maxillofacial Surgery, Dental enamel, Complication, Migration, Mandibular third molar, Survival rate, Kenichi Kurita, Hidemichi Yuasa, Shinichi Taniguchi, Motonobu Achiwa, Mitsuo Goto, Eri Kubota, Atsushi Nakayama, Atsushi Abe
Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.