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Article

3D Occlusal Tooth Wear Assessment in Presence of Limited Changes in Non-Occlusal Surfaces

1
Department of Orthodontics and Dentofacial Orthopedics, University of Bern, CH-3010 Bern, Switzerland
2
Department of Orthodontics, W.J. Kolff Institute, University Medical Center Groningen, University of Groningen, 9700RB Groningen, The Netherlands
3
Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, GR-11527 Athens, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Malek Makki
Diagnostics 2021, 11(6), 1033; https://doi.org/10.3390/diagnostics11061033
Received: 10 May 2021 / Revised: 31 May 2021 / Accepted: 1 June 2021 / Published: 4 June 2021
(This article belongs to the Special Issue Application of 3D-Imaging in Diagnosis)
The study aimed to develop an accurate and convenient 3D occlusal tooth wear assessment technique, applicable when surfaces other than the occlusal undergo changes during the observation period. Various degrees of occlusal tooth wear were simulated in vitro on 18 molar and 18 premolar plaster teeth. Additionally, their buccal and lingual surfaces were gently grinded to induce superficial changes and digital dental models were generated. The grinded and the original tooth crowns were superimposed using six different 3D techniques (two reference areas with varying settings; gold standard: GS). Superimposition on intact structures provided the GS measurements. Tooth wear volume comprised the primary outcome measure. All techniques differed significantly to each other in their accuracy (p < 0.001). The technique of choice (CCD: complete crown with 30% estimated overlap of meshes) showed excellent agreement with the GS technique (median difference: 0.045, max: 0.219 mm3), no systematic error and sufficient reproducibility (max difference < 0.040 mm3). Tooth type, tooth alignment in the dental arches, and amount of tooth wear did not significantly affect the results of the CCD technique (p > 0.01). The suggested occlusal tooth wear assessment technique is straightforward and offers accurate outcomes when limited morphological changes occur on surfaces other than the occlusal. View Full-Text
Keywords: tooth wear; measurement method; three-dimensional imaging; surface model; 3D superimposition; quantitative assessment tooth wear; measurement method; three-dimensional imaging; surface model; 3D superimposition; quantitative assessment
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MDPI and ACS Style

Gkantidis, N.; Dritsas, K.; Katsaros, C.; Halazonetis, D.; Ren, Y. 3D Occlusal Tooth Wear Assessment in Presence of Limited Changes in Non-Occlusal Surfaces. Diagnostics 2021, 11, 1033. https://doi.org/10.3390/diagnostics11061033

AMA Style

Gkantidis N, Dritsas K, Katsaros C, Halazonetis D, Ren Y. 3D Occlusal Tooth Wear Assessment in Presence of Limited Changes in Non-Occlusal Surfaces. Diagnostics. 2021; 11(6):1033. https://doi.org/10.3390/diagnostics11061033

Chicago/Turabian Style

Gkantidis, Nikolaos, Konstantinos Dritsas, Christos Katsaros, Demetrios Halazonetis, and Yijin Ren. 2021. "3D Occlusal Tooth Wear Assessment in Presence of Limited Changes in Non-Occlusal Surfaces" Diagnostics 11, no. 6: 1033. https://doi.org/10.3390/diagnostics11061033

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