Guan Lanxi, Liu Xiao, Cai Chen, Fang Cailing, Lao Yidi, Huang Jiaxin, Huang Yuting, Yang Xuechao, Jiang Qianzhou
Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, China.
Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, China; Department of General Dentistry II, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, China.
J Endod. 2025 Oct;51(10):1490-1496.e5. doi: 10.1016/j.joen.2025.06.006. Epub 2025 Jun 17.
Endodontic microsurgery (EMS) is a minimally invasive treatment for persistent periapical lesions. This study evaluates the accuracy and outcomes of a straight-incision EMS guided by 3-dimensional (3D)-printed template, with at least 1 year of follow-up.
Twelve teeth from nine patients underwent minimally invasive straight-incision EMS using 3D-printed templates and a trephine for both osteotomy and root-end resection. Clinical outcomes, deviations in resection length and angle, and mucosal incision healing were retrospectively assessed.
Trephine-based root-end resection was successful in all cases, with no intraoperative or postoperative complications. Clinical and radiographic evaluations confirmed success in all patients after 1 year. Median resection length deviation was 0.79 mm (95% confidence interval: 0.49-1.16), and angular deviation was 19° (95% confidence interval: 8.03-25.47). All cases showed favorable and rapid wound healing, except for case 12.
Straight-incision EMS guided by 3D-printed templates is a precise, minimally invasive, and esthetically favorable technique that enables accurate root-end resection and promotes effective healing.
牙髓显微外科手术（EMS）是一种针对持续性根尖周病变的微创治疗方法。本研究评估了在三维（3D）打印模板引导下进行的直切口EMS的准确性和治疗效果，并进行了至少1年的随访。
对9例患者的12颗牙齿采用3D打印模板和环钻进行微创直切口EMS，用于截骨术和根尖切除术。对临床效果、切除长度和角度的偏差以及黏膜切口愈合情况进行回顾性评估。
所有病例基于环钻的根尖切除术均成功，无术中或术后并发症。临床和影像学评估证实1年后所有患者均成功。切除长度偏差中位数为0.79毫米（95%置信区间：0.49 - 1.16），角度偏差为19°（95%置信区间：8.03 - 25.47）。除病例12外，所有病例均显示出良好且快速的伤口愈合。
3D打印模板引导下的直切口EMS是一种精确、微创且美观的技术，能够实现准确的根尖切除并促进有效愈合。
