口腔医学研究

口腔医学研究 ›› 2026, Vol. 42 ›› Issue (5): 439-441.DOI: 10.13701/j.cnki.kqyxyj.2026.05.013

• 病例报告 • 上一篇    下一篇

左上颌第二磨牙双腭根显微根管治疗1例

李振玲1, 路瑶2, 王珂1, 王晓荣2*   

  1. 1.滨州医学院附属烟台口腔医院开发区分院 山东 烟台 264000;
    2.滨州医学院附属烟台口腔医院牙体牙髓科 山东 烟台 264001
  • 收稿日期:2025-06-23 发布日期:2026-05-25
  • 通讯作者: *王晓荣,E-mail:dr-wangxiaorong@hotmail.com
  • 作者简介:李振玲(1987~ ),女,山东潍坊人,硕士,主治医师,研究方向:牙体牙髓病学。

Microscopic Root Canal Treatment in Left Maxillary Second Molar with Dual Palatal Roots: A Case Report

LI Zhenling1, LU Yao2, WANG Ke1, WANG Xiaorong2*   

  1. 1. Development Zone Branch, The Affiliated Yantai Stomatological Hospital, Binzhou Medical University, Yantai 264000, China;
    2. Department of Endodontics, The Affiliated Yantai Stomatological Hospital, Binzhou Medical University, Yantai 264001, China
  • Received:2025-06-23 Published:2026-05-25

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摘要： 上颌第二磨牙根管系统多存在变异,多为3根三根管,双腭根较为少见。本文报告了1例上颌双侧第二磨牙存在双腭根病例,并对其左侧上颌第二磨牙行显微根管治疗。本病例表明上颌第二磨牙根管变异的复杂性,提醒临床医师对上颌第二磨牙的根管解剖形态应有全面的术前评估,必要时可借助锥形束计算机断层扫描(cone beam computed tomography, CBCT)及牙科显微镜(dental operating microscopy, DOM)确定根管的位置、数目及根管走行,以提高根管治疗的成功率。

关键词: 上颌第二磨牙, 双腭根, 根管变异, 锥形束计算机断层扫描, 牙科显微镜

Abstract: The root canal system of maxillary second molars often exhibits variations, typically presenting with three roots and three canals. The occurrence of dual palatal roots is relatively rare. This article reports a case of bilateral maxillary second molars with dual palatal roots and describes the microscopic root canal treatment performed on the left maxillary second molar. This case highlights the complexity of root canal variations in maxillary second molars, reminding clinicians to conduct a comprehensive preoperative assessment of their root canal anatomy. When necessary, cone-beam computed tomography (CBCT) and dental operating microscopy (DOM) could be employed to determine the position, number, and configuration of the root canals, thereby improving the success rate of root canal treatment.

Key words: maxillary second molar, dual palatal roots, root canal variations, cone beam computed tomography, dental operating microscopy