Análisis de microdesgaste dentario-vestibularen sujetos humanos actuales

Résumé

Buccal dental-microwear analyses have been applied to bioarchaeological and modern huntergatherershuman groups. lntragrupal variability results suggest a valid quantitative method to knowfood strategies and technological processes. However, we not known studies of bucea! dental-microwearthat could resolve severa! questions regards to formation processes. In this study, buccal dental-microwear have been analysed in an in vivo sample of 36 both sex volunteers with an agerange between 18 and 33 years old under non-induced diet. High-resolution impression replicaswere obtained of left-lower M1 of each volunteer and examined under Scanning Electron Microscopy(SEM) at 100? magnification. Microwear density and average microwear length were analisedon buccal surface micrographs with an analysis computer program. Analyses of variance(ANOVA) show non-significant differences (P<0.05) in the striation density and length by orientationcategories (45° intervals) between sex-factor. However, the ANOVA have shown differencesbetween age-ranges from mean length. On the other hand, intra-group results suggest a differentmicrowear model regarding ancient human groups probably related to amount and typesof chewing abrasive particles.