冠根分次法拔除毗邻下牙槽神经阻生第三磨牙1例

doi:10.12337/zgkqjxjyzz.2025.03.008

中国口腔医学继续教育杂志 ›› 2025, Vol. 28 ›› Issue (3): 166-172.DOI: 10.12337/zgkqjxjyzz.2025.03.008

冠根分次法拔除毗邻下牙槽神经阻生第三磨牙1例

李奕杭¹, 袁天朔², 孟培松^1,*

¹哈尔滨医科大学附属第四医院口腔科;
²哈尔滨市口腔医院口腔颌面外科

出版日期:2025-05-31 发布日期:2025-05-31
通讯作者: ^*孟培松，联系方式：0451-82576565，电子邮箱：mengpeisong641205@163.com，通讯地址：黑龙江省哈尔滨市南岗区颐园街37号，150001
作者简介:^#共同第一作者

Staged Crown-Root Segmentation Extraction of an Impacted Mandibular Third Molars Adjacent to the Inferior Alveolar Nerve: A Case Report

Yihang Li¹, Tianshuo Yuan², Peisong Meng^1,*

¹Department of Stomatology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, P.R. China;
²Department of Oral and Maxillofacial Surgery, The Stomatological Hospital of Harbin, Harbin, Heilongjiang Province, P.R. China

Online:2025-05-31 Published:2025-05-31
Contact: Peisong Meng. Tel: 0451-82576565. Email: mengpeisong641205@163.com. Address: No.37 Yiyuan Street, Nangang District, Harbin 150001, Heilongjiang Province, P.R. China.
About author:^#These authors contibute equally to this manuscript.

摘要/Abstract

摘要： 目的：本文报道冠根分次法拔除毗邻下牙槽神经阻生第三磨牙1例,以期为高风险阻生第三磨牙的微创治疗提供更多的治疗选择。诊治经过：男性患者,27岁,近中低位阻生,双根尖毗邻下颌管,为患者提供了冠根分次法拔除阻生第三磨牙的适宜化诊疗方案,即一期手术拔除患牙牙冠保留牙根,待牙根远离下牙槽神经后二期手术拔除剩余牙体组织,患者知情并同意手术。结果：经过分次法拔除,患者术后未出现感觉异常、感染等症状。结论：分次拔除冠根的手术可以为毗邻下牙槽神经阻生第三磨牙的拔除提供替代性治疗方案。

关键词: 分次法拔除, 下颌阻生第三磨牙, 下牙槽神经损伤, 微创拔牙, 牙根移位

Abstract: Objective: This article reports a case of staged extraction of impacted mandibular third molars adjacent to the inferior alveolar nerve canal (IANC) using coronectomy, providing additional therapeutic options for minimally invasive management of high-risk impacted teeth. Diagnosis and treatment: A 27-year-old male patient presented with bilateral mesioangular low-position impacted mandibular third molars, with roots closely adjacent to the IANC. After discussing postoperative risks of conventional extraction, the patient exhibited severe anxiety. A staged coronectomy protocol was therefore implemented as an adaptive treatment strategy. Results: Following staged extraction, the patient exhibited no postoperative sensory abnormalities, infections, or other complications, with significantly reduced anxiety levels. Conclusions: The procedure of segmental extraction of impacted molars can serve as an alternative treatment option for the removal of mandibular third molars adjacent to the inferior alveolar nerve.

Key words: coronectomy, impacted mandibular third molar, inferior alveolar nerve injury, minimally invasive tooth extraction, tooth root migration

李奕杭, 袁天朔, 孟培松. 冠根分次法拔除毗邻下牙槽神经阻生第三磨牙1例[J]. 中国口腔医学继续教育杂志, 2025, 28(3): 166-172.

Yihang Li, Tianshuo Yuan, Peisong Meng. Staged Crown-Root Segmentation Extraction of an Impacted Mandibular Third Molars Adjacent to the Inferior Alveolar Nerve: A Case Report[J]. Chinese Journal of Stomatological Continuing Education, 2025, 28(3): 166-172.

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冠根分次法拔除毗邻下牙槽神经阻生第三磨牙1例

Staged Crown-Root Segmentation Extraction of an Impacted Mandibular Third Molars Adjacent to the Inferior Alveolar Nerve: A Case Report

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