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Marginal Accuracy of Lithium Disilicate Full-Coverage Single Crowns Made by Direct and Indirect Digital or Conventional Workflows: A Systematic Review and Meta-Analysis Publisher Pubmed



Tabesh M1 ; Nejatidanesh F2 ; Savabi G2 ; Davoudi A3 ; Savabi O1
Authors
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Authors Affiliations
  1. 1. Dental Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Dental Materials Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. School of Dentistry, Shahrekord University of Medical Sciences, Shahrekord
  4. 4. and member of Dental Implants Research Center, Isfahan University of Medical Siences, Isfahan, Iran

Source: Journal of Prosthodontics Published:2022


Abstract

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. © 2022 by the American College of Prosthodontists.
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