Data di Pubblicazione:
2010
Citazione:
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]
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.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
R. Rosati, M. De Menezes, A. Rossetti, C. Sforza, V.F. Ferrario
Link alla scheda completa: