2005
DOI: 10.1007/11566489_55
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Statistical Face Models for the Prediction of Soft-Tissue Deformations After Orthognathic Osteotomies

Abstract: Abstract. This paper describes a technique to approximately predict the facial morphology after standardized orthognathic ostoetomies. The technique only relies on the outer facial morphology represented as a set of surface points and does not require computed tomography (CT) images as input. Surface points may either be taken from 3D surface scans or from 3D positions palpated on the face using a tracking system. The method is based on a statistical model generated from a set of pre-and postoperative 3D surfa… Show more

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Cited by 16 publications
(10 citation statements)
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“…The establishment of a universal list of repeatable landmarks could help to determine and evaluate linear, angular and proportional measurements. This list could also enable the inclusion of volumetric and surface measurements in 3D cephalometry, which could be helpful in airway or orbital volume analysis for syndromic or post-injury deformities (Imai et al, 2013;Kwon et al, 2009;Nout et al, 2012), as well as in soft tissue surface analysis for orthognathic surgery (Meller et al, 2005;Xia et al, 2000). The theoretical considerations could further include a combination of 3D cephalometry and finite element analysis, which could allow for more accurate prediction of the effects of surgical distraction or orthodontic expansion (Araugio et al, 2013;Remmler et al, 1998).…”
Section: Discussionmentioning
confidence: 98%
“…The establishment of a universal list of repeatable landmarks could help to determine and evaluate linear, angular and proportional measurements. This list could also enable the inclusion of volumetric and surface measurements in 3D cephalometry, which could be helpful in airway or orbital volume analysis for syndromic or post-injury deformities (Imai et al, 2013;Kwon et al, 2009;Nout et al, 2012), as well as in soft tissue surface analysis for orthognathic surgery (Meller et al, 2005;Xia et al, 2000). The theoretical considerations could further include a combination of 3D cephalometry and finite element analysis, which could allow for more accurate prediction of the effects of surgical distraction or orthodontic expansion (Araugio et al, 2013;Remmler et al, 1998).…”
Section: Discussionmentioning
confidence: 98%
“…Unlike previous purly biomechanical based FEM [9] and statistical based model [6], our model integrated the statistical information and biomechanical information together. The results empirically showed our method outperformed the others.…”
Section: Conclusion and Discussionmentioning
confidence: 99%
“…Population-based statistical information was not considered. On the other hand, a statistical based method [6] is efficient but does not consider the biomechanical properties and thus it is less-than-accurate. To this end, we hypothesized that the soft tissue change could be accurately simulated if we could combine the FEM and statistical model into one model.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Advanced planning approaches include the possibility to perform virtual mobilization of the mandibles and simulation of the target situation [5] [6]. Some of these approaches also include the simulation of facial soft tissue deformation according to the repositioning of the underlying structures [7] [8]. Nowadays rapid prototyping technologies enable fabrication of dental splints [9] based on three-dimensional simulation environments.…”
Section: Introductionmentioning
confidence: 99%