TY - JOUR
T1 - Digital dental cast placement in 3-dimensional, full-face reconstruction
T2 - A technical evaluation
AU - Rosati, Riccardo
AU - De Menezes, Marcio
AU - Rossetti, Alberto
AU - Sforza, Chiarella
AU - Ferrario, Virgilio F.
PY - 2010/7
Y1 - 2010/7
N2 - 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.
AB - 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.
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U2 - 10.1016/j.ajodo.2009.10.035
DO - 10.1016/j.ajodo.2009.10.035
M3 - Article
C2 - 20620838
AN - SCOPUS:77954183814
VL - 138
SP - 84
EP - 88
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
SN - 0889-5406
IS - 1
ER -