INTRODUCTION: Several noninvasive methods are used for 3-dimensional (3D) morphologic facial and dental analysis to aid practitioners during diagnosis and treatment planning. Integrating dental and facial noninvasive 3D reproduction could improve the efficacy of treatment management. METHODS: Dental virtual model and soft-tissue facial morphology were digitally integrated from 11 adults with a 3D stereophotogrammetric imaging system (Vectra, Canfield Scientific, Fairfield, NJ). The digital 3D coordinates of 3 facial landmarks (N, nasion; Ftr, frontotemporale right; Ftl, frontotemporale left) and 3 dental landmarks (I, interincisor; Pr, PI, tips of the mesiovestibular cusps of the right and left first permanent premolars) were then obtained by using Vectra''s software. Additionally, the coordinates of the same 6 landmarks were digitized directly on each subject by using a 3D computerized electromagnetic digitizer (in vivo). Seven linear measurements were made between the occlusal plane (Pr-I-Pl) and the facial landmarks (Ftr-N-Ftl). The accuracy and reliability of the reconstruction were tested by in-vivo measurements and repeated acquisitions. RESULTS: The greatest mean relative error of measurements was smaller than 1.2%. No significant differences in repeatable reproductions were found. CONCLUSIONS: Integration of facial stereophotogrammetry acquisition and dental laser scan reproduction is possible with marginal error.

Digital dental cast placement in 3d full face reconstruction: a technical evaluation / R. Rosati, M. De Menezes, A. Rossetti, C. Sforza, V.F. Ferrario. - In: AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS. - ISSN 0889-5406. - 138:1(2010), pp. 84-88. [10.1016/j.ajodo.2009.10.035]

Digital dental cast placement in 3d full face reconstruction: a technical evaluation

R. Rosati
Primo
;
M. De Menezes
Secondo
;
A. Rossetti;C. Sforza
Penultimo
;
V.F. Ferrario
Ultimo
2010

Abstract

INTRODUCTION: Several noninvasive methods are used for 3-dimensional (3D) morphologic facial and dental analysis to aid practitioners during diagnosis and treatment planning. Integrating dental and facial noninvasive 3D reproduction could improve the efficacy of treatment management. METHODS: Dental virtual model and soft-tissue facial morphology were digitally integrated from 11 adults with a 3D stereophotogrammetric imaging system (Vectra, Canfield Scientific, Fairfield, NJ). The digital 3D coordinates of 3 facial landmarks (N, nasion; Ftr, frontotemporale right; Ftl, frontotemporale left) and 3 dental landmarks (I, interincisor; Pr, PI, tips of the mesiovestibular cusps of the right and left first permanent premolars) were then obtained by using Vectra''s software. Additionally, the coordinates of the same 6 landmarks were digitized directly on each subject by using a 3D computerized electromagnetic digitizer (in vivo). Seven linear measurements were made between the occlusal plane (Pr-I-Pl) and the facial landmarks (Ftr-N-Ftl). The accuracy and reliability of the reconstruction were tested by in-vivo measurements and repeated acquisitions. RESULTS: The greatest mean relative error of measurements was smaller than 1.2%. No significant differences in repeatable reproductions were found. CONCLUSIONS: Integration of facial stereophotogrammetry acquisition and dental laser scan reproduction is possible with marginal error.
Settore BIO/16 - Anatomia Umana
2010
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/144037
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