Dental wear estimation using a digital intra-oral optical scanner and an automated 3D computer vision method

The objective of this work was to propose an automated and direct process to grade tooth wear intra-orally. Eight extracted teeth were etched with acid for different times to produce wear and scanned with an intra-oral optical scanner. Computer vision algorithms were used for alignment and compariso...

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Bibliographic Details
Published in:Computer methods in biomechanics and biomedical engineering 2016-04, Vol.19 (5), p.507-514
Main Authors: Meireles, Agnes Batista, Vieira, Antonio Wilson, Corpas, Livia, Vandenberghe, Bart, Bastos, Flavia Souza, Lambrechts, Paul, Campos, Mario Montenegro, Las Casas, Estevam Barbosa de
Format: Article
Language:English
Subjects:
Algorithms
Calibration
computer vision
dental models
Humans
Image Processing, Computer-Assisted - methods
imaging
Imaging, Three-Dimensional - methods
intra-oral scanner
Models, Theoretical
Reproducibility of Results
Tooth
Tooth Wear
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Summary:The objective of this work was to propose an automated and direct process to grade tooth wear intra-orally. Eight extracted teeth were etched with acid for different times to produce wear and scanned with an intra-oral optical scanner. Computer vision algorithms were used for alignment and comparison among models. Wear volume was estimated and visual scoring was achieved to determine reliability. Results demonstrated that it is possible to directly detect submillimeter differences in teeth surfaces with an automated method with results similar to those obtained by direct visual inspection. The investigated method proved to be reliable for comparison of measurements over time.
ISSN:1025-5842
1476-8259
DOI:10.1080/10255842.2015.1043627