口腔医学研究

口腔医学研究 ›› 2021, Vol. 37 ›› Issue (7): 661-665.DOI: 10.13701/j.cnki.kqyxyj.2021.07.018

• 牙体牙髓病学研究 • 上一篇    下一篇

根管内吸引器用于3D打印模型牙吸引效果的体外研究

郝俊燕, 胡洪成, 韩怡, 曹佳, 周海全, 宣岩, 杨影, 侯晓玫*   

  1. 北京大学口腔医院第二门诊部,国家口腔疾病临床医学研究中心,口腔数字化医疗技术和材料国家工程实验室,口腔数字医学北京市重点实验室 北京 100101
  • 收稿日期:2021-01-12 出版日期:2021-07-28 发布日期:2021-07-13
  • 通讯作者: * 侯晓玫,E-mail: houxiaomei1108@163.com
  • 作者简介:郝俊燕(1980~ ),女,河北邯郸人,本科,主管护师,研究方向:显微根管治疗的四手操作。
  • 基金资助:
    北京大学口腔医院临床新技术新疗法项目(编号:PKUSSNCT-17A15)

Aspiration Effect of Intracanal Ejectors on 3D-printed Teeth

HAO Junyan, HU Hongcheng, HAN Yi, CAO Jia, ZHOU Haiquan, XUAN Yan, YANG Ying, HOU Xiaomei*   

  1. Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
  • Received:2021-01-12 Online:2021-07-28 Published:2021-07-13

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摘要： 目的:比较不同尖端直径和吸引管路的根管内吸引器在3D打印上颌第一磨牙,上颌第一前磨牙,上颌中切牙根管内的吸引效果。方法:3D打印方法制备3根管上颌第一磨牙,2根管上颌第一前磨牙,1根管上颌中切牙各48个,随机分为6组(n=8)。组装尖端直径0.5 mm、1.0 mm和1.5 mm的根管内吸引器分别配合弱吸或者强吸管路(n=8)。不同尖端直径吸引器依次置入3组牙模型的各个根管,数码相机拍照,ImageJ 软件测量置入深度。各组牙模型注入显影液,CBCT扫描吸引前图像,随后,各组根管内吸引器在每个根管内吸引5 s后,CBCT扫描吸引后图像,计算吸引后剩余液体体积。统计分析采用one-way ANOVA,双因素方差,P<0.05差异有统计学意义。结果:尖端直径0.5 mm、1.0 mm、1.5 mm的吸引器,置入各个根管深度均依次显著加深(P<0.05)。上颌第一前磨牙髓室形态阻碍尖端直径1.5mm吸引器的置入深度。尖端直径0.5 mm、1.0 mm、1.5 mm的吸引器在各组牙模型吸引后,剩余液体体积依次显著增多(P<0.05)。弱吸或者强吸管路对吸引后剩余液体体积无显著影响(P>0.05)。结论:在3D打印牙模型中,尖端直径0.5 mm的根管内吸引器剩余液体量最少。吸引管路对吸引效果无显著影响。

关键词: 根管内吸引, 根管治疗, 四手护理, 3D打印

Abstract: Objective: To compare the aspiration efficacy of intra-canal aspirators with different tip sizes and aspiration powers in 3D printed teeth models of upper first molar, upper first premolar and upper center incisor. Methods: Forty-eight teeth models of upper first molar (three-canals), upper first premolar (two-canals) or upper center incisor (one canal) were printed and randomly divided into 6 groups, respectively, Intra-canal aspirators with tip size 0.5mm, 1.0mm or 1.5mm connecting to high or low power, constituted 6 group (n=8). Aspirators were inserted into canals and pictures obtained using digital camera, insert depths were measured by Image J, accordingly. Radiopaque fluid were injected into teeth models and pre-suction images were scanned using CBCT. Each groups of aspirators were used to suction the canals, 5 seconds each, and the post-suction images were scanned. Volume of residual fluid were measured. Data were analyzed using one-way ANOVA with significance of 0.05. Results: The insert depths were increased significantly with the tip size increased. Particularly, tip size 1.5 mm were obstructed in upper first molar. The volume of residual fluid were increased significantly with the tip size increased. The influences of suction power were not significant. Conclusion: In the 3D printed teeth models, tip size 0.5 mm results in the least residual fluid and the influence of suction power seems not significant.

Key words: intra-canal aspiration, root canal treatment, four-handed care, three-D print