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Updated: Jan 25, 2026

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
Published on: July 12, 2022
Clinical Factors Influence the Trueness of Intra-oral Scanning
A Jivanescu1, P Rotar1, S Hategan1
1Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", Timisoara.
Aims:
The aim of this in vitro study was to evaluate the influence of adjacent teeth in the trueness of digital impressions.
Materials And Methods:
In this study the first premolar on a typodont mounted in a phantom head was prepared for an all ceramic crown. Three different operators scanned the tooth with an intraoral scanner, with three different clinical scenarios: with no adjacent teeth, with one adjacent tooth and with two adjacent teeth. Resulting scans from each operator were compared with a reference scan using metrology software.
Results:
The results of this in vitro study showed differences of scanning trueness between each clinical simulated situation.
Conclusions:
The presence of adjacent teeth can decrease the view of interproximal surfaces and may generate a less precise scan in these regions. The results of this study showed that the trueness of an intraoral digital impression is conditioned by a good visibility of the abutment.
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