Face morphology of brazilian and peruvian populations: analysis of proportion and linear measurement indexes

Authors

  • Elaine Cristina Sousa Dos Santos Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.
  • Diego Jesus Bradariz Pimentel Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.
  • Laís Lopes Machado De Matos Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.
  • Laís Valencise Magri Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.
  • Ana Maria Bettoni Rodrigues Da Silva Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.
  • Marco Antônio Moreira Rodrigues Da Silva Department of Restorative Dentistry – School of Dentistry of Ribeirão Preto – São Paulo University – Ribeirão Preto – SP – Brazil.

DOI:

https://doi.org/10.14295/bds.2017.v20i3.1453

Abstract

Objective: To compare the proportion and linear measurement indexes between Brazilian and Peruvian population through 3D stereophotogrammetry and to stablish the face profile of these two Latin American populations. Material and Methods: 40 volunteers (Brazilian n=21– 10 males and 11 females; Peruvian n=19 – 8 males and 11 females) aged between 18 and 40 years (mean of 28.7±9.1) had landmarks marked on the face. Then, 3D images were obtained (VECTRA M3) and the indexes of proportion and linear measurement (face, nose, and lips) were calculated. The data were statistically analyzed by One-Way ANOVA (p<0.05). Results: The proportion indexes did not reveal marked differences either between the studied populations or genders (p>0.05). The following linear measurements showed intergroup statistically significant differences: face width and height, nose width and height, upper facial height, mouth width, protrusion of the nose tip (p<0.05). The Brazilian females showed the smallest significant differences. Conclusions: Despite the different ethnic compositions, the Brazilian and Peruvian populations did not differ regarding the proportions of the face, nose, and lips. The differences observed in Brazilian females may be related to gender and/or to the Caucasian heritage of the Brazilian sample.

Keywords

Photogrammetry; Face; Tridimensional Image.

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Published

2017-09-12

Issue

Vol. 20 No. 3 (2017): Jul. - Sep. / 2017 - Published September 2017

Section

Clinical or Laboratorial Research