Abstract
Statement of problem
The accuracy of different virtual cement gap parameters in designing a single crown
in a computer-aided design (CAD) software program is still unclear.
Purpose
The purpose of this in vitro study was to evaluate and compare the virtual cement
gap settings of 3 different CAD software programs used to design a single crown restoration.
Material and methods
Three different CAD software programs (exocad, Dental System, and B4D) were evaluated
for designing single crowns with similar virtual cement gap settings. Three experimental
groups were created based on the CAD software program used (n=10). Three-dimensional
analysis software program was used to assess the virtual cement gap in the CAD restoration.
The Shapiro–Wilk test of normality was used. Comparisons were carried out by using
1-way ANOVA and the Scheffé post hoc test (α=.05).
Results
The Dental System software program had the lowest statistical mean error values at
both tooth margin (4.6 μm) and axial wall (1.5 μm), followed by B4D then exocad. At
the occlusal surface, the lowest statistical mean error value of 5 μm was achieved
by the Dental System followed by exocad then B4D.
Conclusions
Accuracy of the virtual cement gap parameter in single crown design varies based on
the CAD software used. The highest accuracy was attained by the Dental System software
program at all tooth surfaces, followed by B4D at the tooth margin and axial wall
and by exocad at the occlusal surface.
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Article info
Publication history
Published online: April 05, 2023
Footnotes
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Identification
Copyright
© 2023 by the Editorial Council for The Journal of Prosthetic Dentistry.
