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Accuracy and reproducibility of 3-dimensional digital model measurements.
- Source :
- American Journal of Orthodontics & Dentofacial Orthopedics; Aug2012, Vol. 142 Issue 2, p269-273, 5p
- Publication Year :
- 2012
-
Abstract
- Introduction: The purpose of this study was to evaluate the reliability of measurements made on 3-dimensional digital models obtained with a surface laser scanner (D-250; 3Shape, Copenhagen, Denmark). Methods: Twenty orthodontic dental casts of permanent dentitions were selected. Three-dimensional images were obtained on this scanner and analyzed by using the Geomagic Studio 5 software (Raindrop Geomagic, Inc, Morrisville, NC). Measurements were made with a digital caliper directly on the dental casts and also digitally on the digital models. Fifteen anatomic dental points were identified, and a total of 11 linear measurements were taken from each cast, including arch length and width. Dependent t tests were used to evaluate intraexaminer reproducibility and measurement accuracy on the digital models. Results: No statistically significant differences were found between the measurements made directly on the dental casts and on the digital models. Conclusions: Linear measurements on digital models are accurate and reproducible. Digital models obtained with the surface laser scanner are reliable for measurements of arch width and length. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 08895406
- Volume :
- 142
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- American Journal of Orthodontics & Dentofacial Orthopedics
- Publication Type :
- Academic Journal
- Accession number :
- 78277629
- Full Text :
- https://doi.org/10.1016/j.ajodo.2011.12.028