磨牙-切牙畸形1例

doi:10.13701/j.cnki.kqyxyj.2026.07.013

口腔医学研究 ›› 2026, Vol. 42 ›› Issue (7): 622-626.DOI: 10.13701/j.cnki.kqyxyj.2026.07.013

磨牙-切牙畸形1例

王珮璇^1,2, 钱虹¹, 刘琼^1*

1.南方医科大学口腔医院(口腔医学院)儿童口腔科广东广州 510280;
2.福建省儿童医院(上海儿童医学中心福建医院)口腔科福建福州 350014

收稿日期:2025-07-28 发布日期:2026-07-22
通讯作者: *刘琼,E-mail:13416119087@163.com
作者简介:王珮璇(1998~ ),女,福州人,硕士,医师,研究方向:儿童口腔医学。现任职于福建省儿童医院(上海儿童医学中心福建医院)口腔科。
基金资助:
2025年南方医科大学口腔医院(广东省口腔医院)临床新技术项目(编号:NTP202527)

Molar Incisor Malformation: A Case Report

WANG Peixuan^1,2, QIAN Hong¹, LIU Qiong^1*

1. Department of Pediatric Dentistry, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China;
2. Department of Stomatolgoy, Fujian Children's Hospital (Fujian Branch of Shanghai Children’s Medical Center), Fuzhou 350014, China

Received:2025-07-28 Published:2026-07-22

摘要/Abstract

摘要： 磨牙-切牙畸形(molar incisor malformation, MIM)是一种罕见的牙齿发育异常,其特征性表现为第一恒磨牙、第二乳磨牙的牙根发育异常和上颌恒中切牙的牙冠缺损。自2014年命名以来,国内罕见病例报道,许多临床医生对MIM的认知尚不充分。本文报道1例9岁男性患者的MIM,该患者上颌中切牙进行了树脂充填,左下第一恒磨牙在牙科显微镜辅助下,采用生物陶瓷材料进行了根管治疗,同时结合相关文献回顾,旨在为该病治疗方案的选择提供参考依据。

关键词: 磨牙-切牙畸形, 根管治疗, 生物陶瓷材料

Abstract: Molar incisor malformation (MIM) is a rare dental developmental anomaly characterized by abnormal root development of the first permanent molar and second primary molar and crown defects of the maxillary permanent mesial incisors. Since its naming in 2014, domestic reports of MIM cases remain scarce, and many clinicians still lack sufficient awareness of this disease. This paper reports a case of MIM in a 9-year-old male patient, who received resin restoration for the maxillary central incisors and root canal therapy using bioceramic for the mandibular left first permanent molar under the assistance of a dental operating microscope. At the same time, combined with relevant literature review, the paper aims to provide reference for the selection of treatment plans for this disease.

Key words: molar incisor malformation, root canal treatment, bioceramic

王珮璇, 钱虹, 刘琼. 磨牙-切牙畸形1例[J]. 口腔医学研究, 2026, 42(7): 622-626.

WANG Peixuan, QIAN Hong, LIU Qiong. Molar Incisor Malformation: A Case Report[J]. Journal of Oral Science Research, 2026, 42(7): 622-626.

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磨牙-切牙畸形1例

Molar Incisor Malformation: A Case Report

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