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2 Journal of Medical Informatics & Technologies

2 2005

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The application of the 3D surface scanning in the facial features analysis

Tomaka A., Liśniewska-Machorowska B.

Journal of Medical Informatics & Technologies

2005

Vol. 9

233--240

Facial feature analysis is a basis examination in everyday orthodontics practice. Traditionally it was carried out using the patients photographs and callipers. Although the devices for scanning 3D surfaces have been developed since last decade of XX century their use in supporting orthodontics diagnosis have been limited due to availability and prices. The present work examine the possibility of usage of the 3D surface scanning for orthodontics purposes using professional graphic tool RapidForm. The landmarks-based analysis of facial features and asymmetry of soft tissue is described. Possibilities of surface-based analysis are also illustrated and their limitations are discussed.

3D head surface scanning techniques for orthodontics

Tomaka A., Luchowski L., Skabek K., Tarnowski M.

Journal of Medical Informatics & Technologies

2005

Vol. 9

123--130

The accuracy of the Minolta 9i 3D laser scanner is evaluated and conditions are defined for its usability in orthodontics. Experiments are described which helped determine optimal scanning conditions such as beam power, patient positioning, the number of scans per examination, and viewpoint selection.