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Medicina Legal de Costa Rica

versión On-line ISSN 2215-5287versión impresa ISSN 1409-0015


FERNANDEZ CHAVES, José Manuel. Morphological analysis of palatal rugae pattern in Costa Rican population. Med. leg. Costa Rica [online]. 2020, vol.37, n.2, pp.102-114. ISSN 2215-5287.

The present study aimed to establish the morphological patterns present in the palatal rugae in a Costa Rican population by means of the Trobo method and to carry out a statistical analysis with the variables of sex, age and biological affinity. Seventy patients were randomly chosen to whom impressions and superior dental models were made, the sex, age and biological affinity of each one was documented, together with the informed consent. The distribution of gender, age and biological affinity patterns was statistically analyzed. The techniques for the analysis of the information were the frequency distributions, crossing of variables, comparison of means based on the analysis of variance, Spearman's correlation coefficient; Chi square tests, to evaluate the independence between the characteristics of age and sex. These tests indicate a predominance of straight and simple types of palatal rugae in both the male and female population, with no variation in the number of rugae associated with sex or biological affinity; but a difference was determined by age group, they decrease in number as age increases. On the other hand, there was no dimorphism due to sex, laterality or position.

Palabras clave : Palatal rugae; rugoscopy; identification.

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