Three-dimensional methodology for photogrammetric acquisition of the soft tissues of the face: a new clinical-instrumental protocol

Deli, Roberto; Galantucci, Luigi Maria; Laino, A; D’Alessio, Raoul; Gioia, Eliana Di; Savastano, C; Lavecchia, Fulvio; Percoco, Gianluca

doi:10.1186/2196-1042-14-32

Cited by 40 publications

(24 citation statements)

References 30 publications

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“…A previous study on the 3D images of the Miss Italy 2010 contestants showed that their facial width was 83.5 mm at the inter-exocanthus and 73.7 mm at the inter-gonion 38. However, in the MK group of our study, the corresponding facial widths were 95.7 mm and 119.1 mm, respectively.…”

Section: Discussioncontrasting

confidence: 77%

A three-dimensional photogrammetric analysis of the facial esthetics of the Miss Korea pageant contestants

et al. 2017

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ObjectiveThe aims of this study were to measure and compare the facial dimensions of the Miss Korea pageant contestants and a selected group of women from the general population by using three-dimensional (3D) image analysis, as well as to compare various facial ratios to the golden ratio within each group.MethodsThree-dimensional images of 52 Miss Korea pageant contestants (MK group) and 41 young female adults selected from the general population (GP group) were acquired. Fifty-four variables and ratios were measured and calculated. Intergroup comparisons were performed using multivariate analysis of variance.ResultsCompared to the GP group, the MK group showed greater total facial height and eye width, lesser lower-facial height, and lesser facial, lower-facial, and nasal widths. Moreover, compared to the GP group, the MK group had more protruded noses with greater nasolabial angle, greater vertical curvature of the foreheads, lesser horizontal curvature of the cheek, and lesser lower-lip-and-chin volume.ConclusionsThe MK group had longer faces but smaller lower lips and chins than did the GP group. The golden ratio was not matching the current facial esthetic standards. These data might be beneficial for treatment planning of patients undergoing orthognathic and plastic surgeries.

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Section: Discussioncontrasting

confidence: 77%

A three-dimensional photogrammetric analysis of the facial esthetics of the Miss Korea pageant contestants

et al. 2017

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“…A surface electromyographic electrode (T3402M, Thought Technology Ltd., Montreal, Canada) was attached to the forehead, serving as a fiducial marker for subsequent image registration. Markings were placed on participants' lips using hypoallergenic pencil makeup 17 to facilitate identification of anatomical landmarks during image analysis ( Figure 1). Participants were then asked to look straight at a screen positioned at their eye height in natural head position, maintain a neutral facial expression, and keep posterior teeth in slight contact with lips relaxed.…”

Section: Stereophotogrammetrymentioning

confidence: 99%

Three-dimensional Analysis of Lip Changes in Response To Simulated Maxillary Incisor Advancement

Au¹,

Li²,

Bennani³

et al. 2019

The Angle Orthodontist

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Objective: To assess the immediate response of lips in three dimensions (3D) resulting from simulated maxillary incisor advancement. Materials and Methods: Incremental maxillary incisor advancement was simulated by placing wax of increasing thickness (+2 mm, +4 mm, +6 mm) on the incisors of 20 participants, and the induced lip changes were recorded using 3D stereophotogrammetry. The induced displacement of lip landmarks was quantified using 3D image analysis software. Data were analyzed using a repeated-measures analysis of variance (ANOVA) after adjusting for age and sex of the study participants. Results: A large interindividual variation in lip response to simulated incisor advancement was observed. A significant overall effect on 3D lip changes was found for increasing values of simulated incisor advancement (F = 13.2; P < .001) as well as significant differences between anatomical landmarks of the lip (F = 7.4; P < .01). Most points moved outward and anterosuperiorly, except the midpoint and corners of the lip. Greatest movement was observed in the sagittal plane, followed by the vertical and transverse planes. Conclusions: Maxillary incisor advancement significantly affects upper lip change in three planes of space: particularly the anteroposterior plane, in which the response to simulated advancement appears to be nonlinear.

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“…[ 14 15 16 ] In the recent times, noninvasive 3D scanning has become more popular and reliable method of analyzing craniofacial complex. [ 14 15 16 17 18 19 20 ]…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional facial analyses of Indian and Malaysian women

et al. 2015

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Context:Facial measurements serve as a valuable tool in the treatment planning of maxillofacial rehabilitation, orthodontic treatment, and orthognathic surgeries. The esthetic guidelines of face are still based on neoclassical canons, which were used in the ancient art. These canons are considered to be highly subjective, and there is ample evidence in the literature, which raises such questions as whether or not these canons can be applied for the modern population.Aims:This study was carried out to analyze the facial features of Indian and Malaysian women by using three-dimensional (3D) scanner and thus determine the prevalence of neoclassical facial esthetic canons in both the groups.Subjects and Methods:The study was carried out on 60 women in the age range of 18–25 years, out of whom 30 were Indian and 30 Malaysian. As many as 16 facial measurements were taken by using a noncontact 3D scanner.Statistical Analysis Used:Unpaired t-test was used for comparison of facial measurements between Indian and Malaysian females. Two-tailed Fisher exact test was used to determine the prevalence of neoclassical canons.Results:Orbital Canon was prevalent in 80% of Malaysian women; the same was found only in 16% of Indian women (P = 0.00013). About 43% of Malaysian women exhibited orbitonasal canon (P = 0.0470) whereas nasoaural canon was prevalent in 73% of Malaysian and 33% of Indian women (P = 0.0068).Conclusions:Orbital, orbitonasal, and nasoaural canon were more prevalent in Malaysian women. Facial profile canon, nasooral, and nasofacial canons were not seen in either group. Though some canons provide guidelines in esthetic analyses of face, complete reliance on these canons is not justifiable.

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Three-dimensional methodology for photogrammetric acquisition of the soft tissues of the face: a new clinical-instrumental protocol

Cited by 40 publications

References 30 publications

A three-dimensional photogrammetric analysis of the facial esthetics of the Miss Korea pageant contestants

A three-dimensional photogrammetric analysis of the facial esthetics of the Miss Korea pageant contestants

Three-dimensional Analysis of Lip Changes in Response To Simulated Maxillary Incisor Advancement

Three-dimensional facial analyses of Indian and Malaysian women

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