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Materiale Plastice
https://doi.org/10.37358/Mat.Plast.1964

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Materiale Plastice, Volume 53, Issue 1, pp. 65-67 (2016)


Alexandru Victor Burde, Diana Dudea, Stanca Cuc, Marioara Moldovan, Radu Septimiu Campian

Three - dimensional Evaluations of the Coating Thickness of Two Optical Conditioning Scanning Sprays


Abstract:
The purpose of this study was to determine the three-dimensional coating thickness of two scan sprays used in labside digitalization. An assembly consisting of a CoCr tooth with a standard full ceramic crown preparation and a three-dimensionally printed PLA base was duplicated twenty times out of type IV plaster. The plaster models were digitized using a three-dimensional scanner and reference virtual models were acquired (REF). A homogenous coat of spray A was applied on all models and the models were rescanned. After digitalization, the models were steam cleaned and the same technique was used for spray B. The reference scans were compared separately with the scans of group A and B. The resulting data was analyzed with the Student unpaired t-test (a = .05). While there were significant intergroup differences in the three-dimensional comparison of the root mean square of deviations, both scan sprays showed acceptable coating thicknesses for clinical use.


Keywords:
Computer-Aided Design; CAD/CAM; Dental Impression; SEM; Optical Conditioning

Issue: 2016 Volume 53, Number 1
Pages: 65-67
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