直接和间接数字或传统工作流程制作的二硅酸锂全冠单冠的边缘精度：一项系统评价和荟萃分析
Marginal Accuracy of Lithium Disilicate Full-Coverage Single Crowns Made by Direct and Indirect Digital or Conventional Workflows: A Systematic Review and Meta-Analysis.
作者信息
Tabesh Mahtab, Nejatidanesh Farahnaz, Savabi Ghazal, Davoudi Amin, Savabi Omid
机构信息
Dental Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
Dental Materials Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
出版信息
J Prosthodont. 2022 Dec;31(9):744-753. doi: 10.1111/jopr.13515. Epub 2022 May 10.
PURPOSE
Several studies have compared digital intraoral scanners and conventional impressions. The accuracy of these two methods in terms of marginal accuracy of lithium disilicate crowns is not well-established, yet. The purpose of this study was to systematically review available publications on marginal fit of single-unit, full-coverage, tooth-supported lithium disilicate restorations.
METHODS
Pubmed, Web of Science, Cochrane, EMBASE, and Scopus were electronically searched along with a manual search. After critical appraisal, data from selected studies were extracted and mean marginal difference with a 95% confidence interval was calculated. Meta-analysis of the collected data was conducted using STATA software.
RESULTS
The meta-analysis revealed similar marginal gap values in intraoral scanners with conventional groups (p>0.05) and in intraoral scanners with extraoral canners (p>0.05).
CONCLUSION
No significant difference was seen between digital and conventional impressions or intra- and extraoral scanners for marginal accuracy of lithium disilicate crowns.
目的
多项研究对数字口腔内扫描仪和传统印模进行了比较。然而，就二硅酸锂全冠的边缘精度而言，这两种方法的准确性尚未得到充分证实。本研究的目的是系统回顾关于单单位、全覆盖、牙齿支持的二硅酸锂修复体边缘适合性的现有出版物。
方法
对PubMed、科学网、考科蓝、EMBASE和Scopus进行了电子检索，并进行了手工检索。经过严格评估后，提取所选研究的数据，并计算95%置信区间的平均边缘差异。使用STATA软件对收集的数据进行荟萃分析。
结果
荟萃分析显示，口腔内扫描仪与传统组（p>0.05）以及口腔内扫描仪与口腔外扫描仪（p>0.05）的边缘间隙值相似。
结论
对于二硅酸锂全冠的边缘精度，数字印模与传统印模或口腔内与口腔外扫描仪之间未观察到显著差异。
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