Vaillard-Jiménez E, Huitzil-Muñoz EE

Language: Spanish
References: 16
Page: 2322-2327
PDF size: 229.06 Kb.

ABSTRACT

Introduction. Many studies from the anthropological perspective of the molar group of the temporary dentition, that allow the establishment of comparative studies that indicate the non-metric morphological distance between current and ancestral populations are still unknown, so it is necessary to generate information on the dental structures of the contemporary child population. Objective. To quantify the frequency distribution of the degrees of expression of the accessory cusps of the vestibular surfaces of the group of temporal molars. Methodology. In a descriptive and cross-sectional, exploratory study for the field of anthropology of the temporal dentition, a probabilistic sample stratified by sex of 176 sets of plaster models from the child population between 3 and 5 years of age, inhabitants of the Puebla Valley, was analyzed. The variables analyzed were Bolk's tubercle, protostylide (paramolar structures) which were scored by a single observer with a concordance index value Kappa = 0.8467. Results. Coronal dental morphological features (CDMF) of upper molars have smooth faces in 40% of the sample and small pits on the vestibular aspect in 51% of the samples of both sexes. Parastyle was present in percentages of 30% in expressions from grade 1 to 3 in the female sample, but in the male sample, grade 1 predominated in 82% of the left molars and in 53% of the right molars. Conclusions. The vestibular faces of the molar group of the temporal dentition present eminences of inclusion that in upper molars recognized as Bolk's tubercles, in the lower molars are considered as paramolar structures, that many authors call protostylide, which should be recognized as parastylid according to dental anthropological nomenclature.

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