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DESCRICAO HISTOLOGICA DOS INCISIVOS DA CUTIA Dasyprocta prymnolopha (Wagler, 1831)


, : DESCRICAO HISTOLOGICA DOS INCISIVOS DA CUTIA Dasyprocta prymnolopha (Wagler, 1831). Ciencia Animal Brasileira 7(2): 177-185

This work objectified the histological descriptions of incisor and periodonto of Cutia. It was used 10 animals (Dasyprocta prymnolopha) raised on captivity, without considering age or sex. It was used the classical histological processing. The enamel and cement disintegrated, evidencing that the cement has more mineralized tissue than dentin and a similar quantity to enamel. In dentin, it was observed dentin ducts, parallel furrows, flexible, sinuous and perpendicular to the major axle of the tooth; they were in bigger quantity next pre-dentin. It was classified in peritubular, intertubular and interglobular dentin, beside the pre-dentin, thin part non mineralized. The odontoblastos were acid, parallel, disposed side by side between the dentin and the pulp. This presented flux conjunctive tissue with much vessels and nerves; the fibroblasts of star aspect and spindleform with long citoplasmatic prolongations were predominant. The periodonto has cement, periodontal ligament and alveolar bone. The ligament was classified as inferior (dense conjunctive tissue) and superior (flux conjunctive tissue) with the first presenting globular areas deriving from the communication of the alveolar bone and the second a junctional pseudo-stratified epithelium. The fiber of Sharpey departs from the ligament inserting itself in the alveolar bone, formed by spongeous and compact bone.

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