Face Classification in Adults and Minors, an Approach based on Facial Anthropometry

2020 ◽  
Vol 24 (2) ◽  
Author(s):  
Luis Enrique Colmenares Guillén ◽  
Maya Carrillo Ruiz ◽  
Francisco Javier Albores Velasco ◽  
Graciela Gaona Bernabé
2015 ◽  
Vol 122 (03) ◽  
Author(s):  
R Frohner ◽  
RP Kosilek ◽  
C Reinholz ◽  
G Hackenberg ◽  
D Gogas ◽  
...  

2021 ◽  
Vol 12 (6) ◽  
pp. 75-80
Author(s):  
Shanmukha Varalakshmi Vangara ◽  
Dhananjay Kumar ◽  
Neel Kamal Arora

Background: Facial anthropometry is the scientific study of measurements and proportions of the human face. There is huge paucity in the metric measurements of face in Indian population. This study is involved in collecting facial anthropometric data of Western Uttar Pradesh population of age group between 18-25 years. Aims and Objectives: This study aims at evaluating predominant facial phenotype, using facial height and facial width of Western Uttar Pradesh population as study subjects. Materials and Methods: The study was conducted on 200 medical and paramedical students of Shri Ram Murti Smarak Institute of Medical Sciences (SRMS-IMS), Bareilly, Uttar Pradesh. The study subjects were of 18-25 year’s age, belonging to Western Uttar Pradesh region. Digital Vernier Caliper was used to measure the facial parameters. The data was analyzed using statistical tool SPSS 16.0 version. Results: In the present study it is found that facial height and width are more in males compared to females. This difference is statistically significant. On analyzing facial index, hyperleptoprosopic face is the predominant phenotype in males as well as in females, followed by leptoprosopic type in males and mesoprosopic type in females. However, gender differences in facial index are not statistically significant at p<0.05.  Conclusion: The current study reveals that facial parameters can be used to determine the gender of an individual on the basis of height and width.


Author(s):  
Virgilio F. Ferrario ◽  
Chiarella Sforza ◽  
Carlo E. Poggio ◽  
Massimiliano Cova ◽  
Gianluca Tartaglia

Objective In this investigation, the precision of a commercial three-dimensional digitizer in the detection of facial landmarks in human adults was assessed. Methods Fifty landmarks were identified and marked on the faces of five men, on five women, and on a stone cast of the face of one man. For each subject, the three-dimensional coordinates of the landmarks were obtained twice using an electromagnetic three-dimensional digitizer, and the duplicate digitizations were superimposed using common orientations and centers of gravity. Metric differences between homologous landmarks were assessed, and Dahlberg's error was computed. Results For both men and women, the error was 1.05% of the nasion-mid-tragion distance, while for the cast, it was 0.9%. When the duplicate digitizations were used to mathematically reconstruct the faces, and several distances, angles, volumes, and surfaces were computed, more than 80% of the measurements had coefficients of variation lower than 1%. Conclusions The digitizer can assess the coordinates of facial landmarks with sufficient precision, and reliable measurements can be obtained.


2012 ◽  
pp. 1585-1602
Author(s):  
Claudia Dellavia ◽  
Francesca Catti ◽  
Michela Turci ◽  
Chiarella Sforza ◽  
Virgilio F. Ferrario

2021 ◽  
Vol 9 ◽  
Author(s):  
Kelly Guedes de Oliveira Scudine ◽  
Camila Nobre de Freitas ◽  
Kizzy Silva Germano Nascimento de Moraes ◽  
Silvana Bommarito ◽  
Rosana de Fátima Possobon ◽  
...  

It is well recognized that pacifier habit leads to occlusal and orofacial functional changes in children. However, the effects of the interruption of prolonged pacifier habit on the development of the dento-facial complex has not yet been fully characterized. Thus, the aim of this study was to investigate the influence of pacifier removal on aspects of oro-dentofacial morphology and function in preschool children. For that, a pacifier group (n = 28) and a control group (n = 32) of 4-year-old children with and without pacifier habit, respectively, were followed up by a group of dentists and speech therapists at baseline, 6 and 12 months after habit removal. Bite force and lip pressure were assessed using digital systems, and the evaluation of breathing and speech functions was performed using validated protocols, together with the measurements of dental casts and facial anthropometry. The Two-way mixed model ANOVA was used in data analysis. After 12 months, a decrease in malocclusion frequency was observed in pacifier group. Additionally, a change over time was observed in facial, intermolar and palate depth measurements, as well in bite and lip forces and speech function scores, increasing in both groups (p &lt; 0.01). The upper and lower intercanine widths and breathing scores differed between groups at baseline and changed over time reducing the differences. The presence of speech distortions was more frequent in the pacifier group at baseline and decreased over time (p &lt; 0.05). The interruption of pacifier habit improved the maxillary and mandibular intercanine widths, as well as the breathing and speech functions, overcoming the oro-dentofacial changes found.Trial Registration: This clinical trial was registered in the Brazilian Clinical Trials Registry (ReBEC; http://www.ensaiosclinicos.gov.br/), protocol no. RBR-728MJ2.


Author(s):  
Nassih Bouchra ◽  
Amine Aouatif ◽  
Ngadi Mohammed ◽  
Hmina Nabil

2001 ◽  
Vol 38 (6) ◽  
pp. 577-581 ◽  
Author(s):  
Florine Vegter ◽  
J. Joris Hage

Objective: To present a historical appraisal of the use of anthropological and cephalometrical facial soft tissue measurements in cleft patients. Design: The McDowell Indexes and a Medline search were used to trace references up to 1999. Also, references listed with chapters and articles on facial clefts were searched for anthropometrical studies. Twenty-six retrieved articles and book chapters on soft tissue anthropometry and 12 cephalometric publications on soft tissue measurements on radiographs and plaster casts of cleft patients were reviewed. Results and Conclusions: Since 1931, the facial soft tissue appearance of cleft patients has been evaluated by means of anthropometric and cephalometric techniques. Not all of the older studies were performed in a statistically correct fashion. Many of the conclusions of the studies overlap despite differences in technique of assessment. Most studies demonstrate the deficient growth of the maxilla and the deformities of the facial profile in cleft patients.


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