Comparability of clinical wear measurements by optical 3D laser scanning in two different centers.

Details

Serval ID
serval:BIB_213F868088A8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Comparability of clinical wear measurements by optical 3D laser scanning in two different centers.
Journal
Dental Materials
Author(s)
Stober T., Heuschmid N., Zellweger G., Rousson V., Rues S., Heintze S.D.
ISSN
1879-0097 (Electronic)
ISSN-L
0109-5641
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
30
Number
5
Pages
499-506
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish PDF : Dental Materials
Abstract
OBJECTIVE: The purpose of this study was to compare the use of different variables to measure the clinical wear of two denture tooth materials in two analysis centers.
METHODS: Twelve edentulous patients were provided with full dentures. Two different denture tooth materials (experimental material and control) were placed randomly in accordance with the split-mouth design. For wear measurements, impressions were made after an adjustment phase of 1-2 weeks and after 6, 12, 18, and 24 months. The occlusal wear of the posterior denture teeth of 11 subjects was assessed in two study centers by use of plaster replicas and 3D laser-scanning methods. In both centers sequential scans of the occlusal surfaces were digitized and superimposed. Wear was described by use of four different variables. Statistical analysis was performed after log-transformation of the wear data by use of the Pearson and Lin correlation and by use of a mixed linear model.
RESULTS: Mean occlusal vertical wear of the denture teeth after 24 months was between 120μm and 212μm, depending on wear variable and material. For three of the four variables, wear of the experimental material was statistically significantly less than that of the control. Comparison of the two study centers, however, revealed correlation of the wear variables was only moderate whereas strong correlation was observed among the different wear variables evaluated by each center.
SIGNIFICANCE: Moderate correlation was observed for clinical wear measurements by optical 3D laser scanning in two different study centers. For the two denture tooth materials, wear measurements limited to the attrition zones led to the same qualitative assessment.
Pubmed
Web of science
Create date
23/05/2014 17:14
Last modification date
20/08/2019 12:57
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