Desenvolvimento intra-ocular de germes dentais irradiados
Intra-ocular development of irradiated tooth germs
Siqueira, E.; Matheus, M.T.G.; Hetem, S.
Rev. odontol. UNESP, vol.10, nÚnico, p.49-54, 1981
Resumo
Foi observado o desenvolvimento do germe dental transplantado para a câmara anterior do olho, após ser submetido a uma dose única de irradiação de 100r. Para tanto, as camundongas foram sacrificadas 14, 15 e 16 dias após o aparecimento do "plug vaginal" e a metade de seus fetos constituiu o grupo controle e a outra metade o grupo irradiado. Após um período experimental de dez dias de realização do transplante, os camundongos adultos, que serviram como hospedeiros, foram sacrificados, seus globos oculares removidos, fixados, descalcificados e posteriormente processados para o exame histológico. Os resultados obtidos não permitiram verificar efeitos das irradiações sobre os germes dentais transplantados, uma vez que a diferenciação celular e a morfogênese dental pareceram ocorrer normalmente.
Palavras-chave
Desenvolvimento denta, raios-X, implante intra-ocular
Abstract
This research was done in order to verify the action of X-rays on the development of 100th germs transplanted to the anterior chamber of the eye, after to be submitted to a singlr: dose of 100r of radiation. For this, female mice were killed 14,15 and 16 days after the appearance of the vaginal plug and one half of the fetuses constituded the control group and the other half the irradiated group. After an experimental period of 10 days, following the transplantation, the adult mice, used as hosts, were killed, the eyes dissected and processed for histological examination. The results did not show any effect of the radiation on the tooth germs once that the cellular differentiation and dental morphogenesis seem to occur normally.
Keywords
Desenvolvimento denta, raios-X, implante intra-ocular
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