Estudo histomorfologico das linhas incrementarias do esmalte em dentes humanos e sua importancia pericial

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

Several works were accomplished in the sense of investigating the existence or not of the incrementallines of the enamel in human teeth. The objetive of this work was to accompHsh a histomorphologic study .of the incremental tines of the enamel in deciduous and permanent human teeth refering to pericia( aspect, mainly the identification . 160 teeth were used: 90 permanent teeth and 70 deciduous teeth, belong both sexes. The techntque of histologic preparation for wastes went. to have chosen for this study. The prepare of the laminas was divide in stages: cut, wastes, polish . and assembly. The analysis of the dentaf structure was made in optical microscope with increase of 40 and 100 times. Photomicrographs were obtained for registration and interpretation. The results verified that the neonatat tines constitute a permanent biological phenomenon that can be used tO determine the quaHty of the enamel and of the dentine while these can be observed in every deciduous and permanent teeth. The configuration in "stairway" is the main characteristic when analyzed by microscopic. Each tooth group have a respective location in relation to neonatalline. Histologic and morphologic alterations were verified in that lines due to individual variations (clearness, uniformity and continuity) and size of the tooth. It is conckJded that this research can contribute for the pericial investigations because the incremental lines can facilitate the ondontolegist in the identification, improving the quality about data interpretation anct pericias using dental aragments.

ASSUNTO(S)

morfologia esmalte dentario odontologia legal

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