上海口腔医学

上海口腔医学 ›› 2023, Vol. 32 ›› Issue (1): 28-32.doi: 10.19439/j.sjos.2023.01.006

• 论著 • 上一篇    下一篇

3D打印数字化定位导板在根管再治疗中的应用效果评价

田硕1,2, 哈斯达来1,2, 田拓1,2, 潘文慧2   

  1. 1.赤峰学院附属医院 口腔科,内蒙古 赤峰 024000;
    2.赤峰学院 口腔医学院,内蒙古 赤峰 024000
  • 收稿日期:2022-06-23 修回日期:2022-07-26 出版日期:2023-02-25 发布日期:2023-06-12
  • 通讯作者: 田硕,E-mail：ts982859@163.com
  • 作者简介:田硕（1984-）,女,本科,副主任医师
  • 基金资助:
    内蒙古自治区卫生健康科技计划项目（202201547）; 内蒙古自治区高等学校科学研究项目（NJZZ22160）; 赤峰学院口腔医学一流学科建设专项项目（CFXYYLXK09）

Evaluation on application of 3D printing digital positioning guide in root canal retreatment

TIAN Shuo1,2, HASDA Lai1,2, TIAN Tuo1,2, PAN Wen-hui2   

  1. 1. Department of Stomatology, Affiliated Hospital of Chifeng University. Chifeng 024000;
    2. School of Stomatology, Chifeng College. Chifeng 024000, Inner Mongolia Autonomous Region, China
  • Received:2022-06-23 Revised:2022-07-26 Online:2023-02-25 Published:2023-06-12

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摘要： 目的: 探讨3D打印数字化定位导板在根管再治疗中的应用效果。方法: 选取2018年1月—2021年12月赤峰学院附属医院收集的82颗离体牙,以随机数字表法分实验组和对照组,各41颗。2组均行根管再治疗,对照组行传统开髓,实验组在3D打印数字化定位导板下精准开髓。比较2组冠部修复体损伤情况,记录开髓操作时间,统计2组根管内充填物去除情况、牙体组织抗折性能和并发症发生率。采用SPSS 18.0软件包对数据进行统计学分析。结果: 实验组开髓孔面积与面总面积比值显著低于对照组（P<0.05）,开髓时间显著少于对照组（P<0.05）、根管预备时间显著多于对照组（P<0.05）;2组开髓与根管预备总时间相比,差异无统计学意义（P>0.05）。实验组根管内充填物去除率显著高于对照组（P<0.05）、破坏载荷值显著高于对照组（P<0.05）。2组并发症发生率相比,差异无统计学意义（P>0.05）。结论: 3D打印数字化定位导板用于根管再治疗,可实现精准微创开髓,减少冠部修复体损伤,保留更多牙体组织,提高去除根管充填物效率及牙体组织的抗折性能。

关键词: 根管再治疗, 数字化定位导板, 微创开髓

Abstract: PURPOSE: To explore the application of 3D printing digital positioning guide in root canal retreatment. METHODS: Eighty-two isolated teeth collected in Chifeng College Affiliated Hospital from January 2018 to December 2021 were selected, and divided into experimental group and control group by random number table method, with 41 teeth in each group. Both groups were given root canal retreatment. The control group underwent traditional pulpotomy, while the experimental group underwent precise pulpotomy under 3D printing digital positioning guide. The damage of the coronal prosthesis caused by pulpotomy was compared between the two groups, the time of pulpotomy was recorded, removal of root canal fillings in the two groups was counted, fracture resistance of the tooth tissue in the two groups was compared, and the incidence of complications in the two groups was recorded. SPSS 18.0 software package was used for statistical analysis of the data. RESULTS: The ratio of pulp opening area to total dental and maxillofacial area in the experimental group was significantly lower than that in the control group (P<0.05). The pulp opening time in the experimental group was lower than that in the control group(P<0.05), and the root canal preparation time in the experimental group was significantly higher than that in the control group(P<0.05). There was no significant difference in the total time between pulp opening and root canal preparation between the two groups(P>0.05). The removal rate of root canal filling in the experimental group was higher than that in the control group (P<0.05). The failure load value of the experimental group was significantly higher than that of the control group (P<0.05). There was no significant difference in the incidence of total complications between the two groups (P>0.05). CONCLUSIONS: Application of 3D-printed digital positioning guides in root canal retreatment can achieve precise and minimally invasive pulp opening, reduce damage to coronal restorations, preserve more dental tissue, and improve the removal efficiency of root canal fillings and the fracture resistance of dental tissue, as well as performance, safety and reliability.

Key words: Root canal retreatment, Digital positioning guide, Minimally invasive pulpotomy

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