不同预设车针半径对二氧化锆修复体组织面车针补偿间隙的影响

doi:10.19439/j.sjos.2024.06.005

上海口腔医学 ›› 2024, Vol. 33 ›› Issue (6): 594-599.doi: 10.19439/j.sjos.2024.06.005

不同预设车针半径对二氧化锆修复体组织面车针补偿间隙的影响

郭亚林¹, 彭靖园², 钱冬冬¹, 梅子彧¹, 孟翔峰¹

1.南京大学医学院附属口腔医院, 南京市口腔医院, 南京大学口腔医学研究所修复工艺科, 2.第二门诊部, 江苏南京 210008

收稿日期:2023-12-03 修回日期:2024-01-28 出版日期:2024-12-25 发布日期:2025-01-07
通讯作者: 孟翔峰,E-mail: mengsoar@nju.edu.cn
作者简介:郭亚林（1989-）,男,E-mail: yalinguo2020@163.com

The influence of different preset drill radius and tooth position on the compensation gap of zirconium dioxide restoration

GUO Ya-lin¹, PENG Jing-yuan², QIAN Dong-dong¹, MEI Zi-yu¹, MENG Xiang-feng¹

1. Department of Prosthetics, 2. The Second Outpatient Department, Affiliated Stomatological Hospital of Medical School, Nanjing Stomatology Hospital, Research Institute of Stomatology, Nanjing University. Nanjing 210008, Jiangsu Province, China

Received:2023-12-03 Revised:2024-01-28 Online:2024-12-25 Published:2025-01-07

摘要/Abstract

摘要： 目的: 研究不同预设车针半径对二氧化锆修复体组织面的车针补偿间隙影响及车针补偿间隙发生的牙位、解剖部位特点。方法: 随机选取切牙、前磨牙和磨牙二氧化锆单冠修复体各12个病例的数字化设计数据,分别将车针半径预设为0.3、0.4、0.5和0.6 mm。使用软件分析获得每组车针补偿间隙的4项评估指标值（补偿面积、补偿面积占比、补偿体积及补偿最大厚度值),进一步对0.5 mm预设半径组的面或切缘、轴面、边缘区域发生间隙补偿频次进行记录。采用SPSS 22.0软件包对数据进行双因素方差分析和卡方检验。结果: 预设车针半径和牙位显著影响修复体组织面车针补偿间隙的4项评估指标值（P<0.05）,4项评估指标值均随车针预设半径降低而显著减小（P<0.05）,车针预设半径0.5 mm组的切牙、磨牙和0.6 mm组的所有类型牙存在最大补偿厚度值超过300 μm的概率;预设半径0.5 mm组各类型牙的切缘/缘区域、轴面区域、边缘区域发生20 μm间隙补偿的频次依次递减（P<0.05）。结论: 0.3~0.4 mm车针预设半径能够获得合理的修复体组织面车针补偿间隙,预备体切缘/缘区域需要精细预备,以减少间隙补偿频次的发生。

关键词: 二氧化锆, CAD\CAM, 预设车针半径, 车针补偿间隙

Abstract: PURPOSE: To explore the influence of different preset drill radius on the drill compensation space of zirconia dioxide restoration and the characteristics of tooth position and anatomical parts of the drill compensation space. METHODS: The digital design data of 12 cases of incisor, premolar and molar were randomly selected, and the radius of the needle was preset to 0.3, 0.4, 0.5 and 0.6 mm. Software analysis was performed to obtain four evaluation index values for each group of drill compensation gaps ,including compensation area, the proportion of the drillcompensation area to the preparation area, compensation volume and the maximum value of the compensation. The compensation frequency of the occlusal/incisal edge, axial surface and edge area of 0.5 mm preset radius group were recorded. Data were analyzed by two-way ANOVA and Chi-square test using SPSS 22.0 software package. RESULTS: The preset drill radius and tooth position significantly affect the values of the four evaluation indicators(P<0.05) of the drill compensation space, among which the four evaluation index values were significantly reduced by the preset radius of the drill (P<0.05). The probability that the maximum drill compensation thickness value of incisor and molar teeth in the 0.5 mm group and all types of teeth in the 0.6 mm group exceeded 300 μm existed, the frequency of 20 μm gap compensation in the incisor/occlusal edge area, the axial surface area, and the edge area of the preparation decreased in turn(P<0.05). CONCLUSIONS: The preset radius of 0.3-0.4 mm can obtain a reasonable drill compensation gap on the tissue surface of the prosthesis. The occlusal/incisor area of the preparation needs to be carefully prepared to reduce the frequency of gap compensation.

Key words: Zirconium dioxide, CAD\CAM, Preset drill compensation radius, Drill compensation gap

中图分类号:

R783.1

郭亚林, 彭靖园, 钱冬冬, 梅子彧, 孟翔峰. 不同预设车针半径对二氧化锆修复体组织面车针补偿间隙的影响[J]. 上海口腔医学, 2024, 33(6): 594-599.

GUO Ya-lin, PENG Jing-yuan, QIAN Dong-dong, MEI Zi-yu, MENG Xiang-feng. The influence of different preset drill radius and tooth position on the compensation gap of zirconium dioxide restoration[J]. Shanghai Journal of Stomatology, 2024, 33(6): 594-599.

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不同预设车针半径对二氧化锆修复体组织面车针补偿间隙的影响

The influence of different preset drill radius and tooth position on the compensation gap of zirconium dioxide restoration

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