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北京大学学报（医学版） ›› 2021, Vol. 53 ›› Issue (1): 62-68. doi: 10.19723/j.issn.1671-167X.2021.01.010

• 论著 • 上一篇    下一篇

数字化方法复制暂时修复体牙合面形态在重度磨耗病例中的应用

李峥1,柳玉树1,2,王时敏3,张瑞1,贾璐3,叶红强1,胡文杰4,赵文艳5,刘云松1,Δ(),周永胜1   

  1. 1.北京大学口腔医学院·口腔医院,修复科, 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 100081
    2.北京大学口腔医学院·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 100081
    3.北京大学口腔医学院·口腔医院,义齿加工中心, 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 100081
    4.北京大学口腔医学院·口腔医院,牙周科 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 100081
    5.银川市口腔医院口腔种植科,银川 750002
  • 收稿日期:2020-10-09 出版日期:2021-02-18 发布日期:2021-02-07
  • 通讯作者: 刘云松 E-mail:liuyunsong@hsc.pku.edu.cn
  • 基金资助:
    北京大学口腔医院新技术新疗法项目(PKUSSNCT-19G01);宁夏回族自治区重点研发计划重点项目(2018BEG02012)

Application of biocopy function of temporary crown occlusal morphology in patients with severe attrition

LI Zheng1,LIU Yu-shu1,2,WANG Shi-min3,ZHANG Rui1,JIA Lu3,YE Hong-qiang1,HU Wen-jie4,ZHAO Wen-yan5,LIU Yun-song1,Δ(),ZHOU Yong-sheng1   

  1. 1. Department of Prosthodontics, 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 100081, China
    2. 2nd Dental Center, 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 100081, China
    3. Digital Laboratory, 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 100081, China
    4. Department of Periodontics, 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 100081, China
    5. Department of Implantation, Yinchuan Stomatology Hospital, Yinchuan 75002, China
  • Received:2020-10-09 Online:2021-02-18 Published:2021-02-07
  • Contact: Yun-song LIU E-mail:liuyunsong@hsc.pku.edu.cn
  • Supported by:
    New Clinical Technology of Peking University of Stomatology(PKUSSNCT-19G01);Grant of the Key Research and Development Program of Ningxia Hui Autonomous Region(2018BEG02012)

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摘要：

目的: 探索数字化方法复制暂时修复体牙合面形态在牙齿重度磨耗病例中的应用,以减少最终修复体的调牙合难度,节约临床时间,提升修复的精准度。方法: 选择2016年1月至2020年1月因牙齿重度磨耗在北京大学口腔医院修复科就诊的患者12例,实验组(6例)最终修复体制作时应用数字化复制暂时修复体牙合面形态,对照组(6例)应用传统方法制作最终修复体,分别记录两种方法制作最终修复体的调牙合时间、患者复诊次数并进行统计学分析;由患者对初戴修复体和戴用修复体3个月后的咬合舒适度进行评分,比较两种方法制作的最终修复体咬合舒适度的差异。结果: 实验组正中牙合和非正中牙合平均每个牙冠调牙合时间的均值均显著低于对照组(P<0.01),实验组患者平均复诊次数低于对照组,差异具有统计学意义(P<0.01); 初戴时实验组患者对最终修复体的咬合舒适度评分中位数均高于对照组(P<0.01), 戴冠3个月后实验组患者对最终修复体的咬合舒适度评分中位数高于对照组,差异具有统计学意义(P<0.05)。结论: 在本研究条件下,应用数字化方法复制暂时修复体牙合面形态的设计方法具有可行性,有利于降低重度磨耗病例修复的调牙合难度并达到可预测的功能和美学效果,对节约临床时间,提升修复精准度有重要意义。

关键词: 数字技术, 计算机辅助设计, 生物复制功能, 牙磨耗

Abstract:

Objective: To explore the preliminary application of “biocopy function” in digital technology of temporary crown in severe tooth attrition, so as to reduce the difficulty of final restoration adjustment in severe tooth wear cases, and save clinical time.Methods: Twelve patients aged between 40 and 65 years with severe tooth attrition were recruited in this study. The experimental group (6 cases, 3 females and 3 males) used the method of digital copy of temporary restoration shape when making the final restoration, and the control group (6 cases, 3 females and 3 males) used the traditional method to make the final restoration. The mean time of central occlusal adjustment and protrusive and lateral occlusal adjustment of each crown, the number of follow-up visits of the patients were recorded and statistically analyzed. The occlusal comfort of the first and the third months after wearing the prosthesis was evaluated by the patients, and the difference of the occlusal comfort of the final prosthesis made by the two methods was compared (the full score was 10 points). The occlusal adjustment time and occlusal comfort score were used as measurement data. Single sample t test was used. The number of follow-up visits was count data. Rank sum test was used for non-normal continuous variables.Results: The mean occlusal time of each crown adjustment in the experimental group was significantly lower than that in the control group (P<0.01), and the median number of follow-up visits in the experimental group was lower than that in the control group (P<0.01). The average occlusal comfort score of the experimental group was higher than that of the control group at the first time (P<0.01). After three months of crown wearing, the median occlusal comfort score of the experimental group was higher than that of the control group (P<0.05).Conclusion: In the case of severe tooth attrition, it is feasible to use the “biocopy function” in the design software to design the final prosthesis, which is conducive to reduce the difficulty of adjustment and achieve predictable functional and aesthetic effects, which is of great significance to save clinical time and improve the accuracy of restoration.

Key words: Digital technology, Computer-aided design, Biocopy, Tooth attrition

中图分类号: 

  • R783.4

图1

典型病例初诊时面部及口内情况"

图2

典型病例的影像学资料"

图3

戴牙合垫,翻制诊断饰面"

图4

制作暂时冠"

图5

复制法设计制作最终修复体"

图6

典型病例的最终修复体"

图7

典型病例一年复查"

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ISSN 1671-167X
CN 11-4691/R
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