Residual enamel removal to improve outcomes of mandibular third molar coronectomy: A single-center retrospective cohort study.

Autor: Kurita K; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: ken.kurita@qc.commufa.jp., Yuasa H; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: MXE05064@nifty.ne.jp., Taniguchi S; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: shinichi_pyro2944129@yahoo.co.jp., Achiwa M; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: achi@he.mirai.ne.jp., Goto M; Department of Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: mgoto@dpc.agu.ac.jp., Kubota E; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: erimakilondon@hotmail.com., Nakayama A; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan. Electronic address: nkym8020@dpc.aichi-gakuin.ac.jp., Abe A; Department of Oral and Maxillofacial Surgery, Aichi Gakuin University, Nagoya, Japan; Department of Oral and Maxillofacial Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan. Electronic address: atsushi.a@ekisai.or.jp.
Jazyk: angličtina
Zdroj: Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery [J Craniomaxillofac Surg] 2024 Sep; Vol. 52 (9), pp. 1042-1049. Date of Electronic Publication: 2024 Jun 10.
DOI: 10.1016/j.jcms.2024.06.003
Abstrakt: 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.
Competing Interests: Declaration of competing interest The authors declare no competing interests.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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