Related Experiment Video
Updated: Aug 16, 2025
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
A Scoping Review of Marginal and Internal Fit Accuracy of Lithium Disilicate Restorations
Tanya Patel1, Neil Nathwani1, Peter Fine1
1UCL Eastman Dental Institute, Rockefeller Building, 21 University Street, London WC1E 6ED, UK.
Objective:
To assess and compare the accuracy of the marginal and internal fit of lithium disilicate crowns and onlays fabricated by conventional and digital methods.
Sources:
An electronic search was carried out on MEDLINE, Embase, Web of Science and Cochrane Library between 2010 and 2021.
Study Selection:
Seventeen studies published between 2014 & 2021 were included, of which thirteen were in vitro laboratory-based studies; three were in vivo clinical studies and one randomised controlled trial.
Data:
Twelve studies focused on the marginal fit, five focused on the marginal and internal fit. Five studies found that the marginal and internal fit of crowns were more accurate using digital techniques. Five studies noted that there was no difference using either technique and two noted that conventional methods had a more accurate marginal fit.
Conclusion:
Digital techniques were comparable to conventional methods in terms of accuracy although there was insufficient evidence to indicate that one technique was more accurate than the other with respect to Lithium Disilicate restorations.
Clinical Significance:
Digital impressions are reliable and viable alternatives for clinicians compared to conventional impression techniques when restoring teeth with lithium disilicate restorations.
