Research Article Open Access

Prevalence of Exostoses in Yucatan Maya Ascent Patients

Abstract

The aim of this study is to define the Prevalence of exostoses in Yucatan Mayan ascent patients from the Universidad Autonoma de Yucatan (UADY) Dental Faculty, during a 3-month period. Yucatan is the state with highest Mayan ethnic concentration, characterized by a brachiocephalic-exostoses association. Bony asymptomatic anatomical variation growths, located in jaws, resulting of genetic-environmental interaction factors. Methods: Observational, descriptive study, including 122 Yucatan Mayan ascent patients, between 21 and 80 years old. Mayan ascent-based confirmed thru last name verification of two generations back. Data obtained from intraoral examination, recording exostoses location and morphology. Statistical descriptive analysis and chi-square test was performed. Results: Of the 122 patients studied, 25 (20.49%) had exostoses; 68% female 32% male; 28% palatal torus; 36% mandibular torus and 4% vestibular exostoses; 32% in both arches. Shape showed 33% were unilobular flat torus, 27% lobular, 6% nodular, and 34% spindle-shaped. Concerning mandibular torus, 39% unilateral and 61 % bilateral. Prevalence ranges from 13.7% to 28.7% (p = 0.0142), considered statistically significant. Conclusions: There are few studies reporting Mayan population exostoses prevalence, but the results obtained represent a prevalence three times higher than current literature. The potential use of exostoses as sources of autogenous cortical bone for grafting.

Ricardo Penaloza-Cuevas, Celia Mendiburu-Zavala, Ruben Cardenas-Erosa, Lilian Aguilar-Vera, Jessica Ancona- Alcocer, Alberto Rivero-Navarrete ME

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