Efeitos da radiação x no processo de reparo em feridas de extração dental. estudo histológico em ratos
Effects of radiation X on the wound healing process after tooth extraction. Histological study in rats
Miguel, R.M.; Pinto, R.S.; Okamoto, T.; Pinto, M.C.S.
Rev. odontol. UNESP, vol.17, nÚnico, p.103-112, 1988
Resumo
O efeito da radiação X no processo de reparo em feridas de extração dental foi estudado através de cortes histológicos. Foram empregados 80 ratos, divididos em grupos de 20, que tiveram seus incisivos superiores direitos extraídos. Com exceção do grupo I (controle), os grupos II, III e IV receberam radiação X respectivamente na dosagem de 75, 125 e 175 R, 24 horas após a extração dental. Os ratos foram sacrificados, em grupos de 4, aos 3, 6, 9, 15 e 21 dias após o ato operatório. As peças obtidas após o processamento laboratorial foram incluídas em parafina para microtomia. Os cortes semi-seriados foram corados com hematoxilina e eosina. Os resultados evidenciaram um atraso no processo de reparo em feridas de extração dental, tanto maior quanto mais intensa a ação do raio X.
Palavras-chave
Radiação X, processo de reparo alveolar, extração dental
Abstract
The effects of radiation X on the wound healing process after teeth extractions was studied histologically. Albino rats were employed; after their right upper incisors were extracted they were divided into groups of 20 animals each. With exception of the group I (control), 24 hours after teeth extractions the groups II, III, and IV receved radiation X, respectively, in the dosage of 75, 125 and 175 R. The rats were sacrificed, in group of 4, at 3, 6, 9, and 21 postoperative days. After laboratorial routine the obtained pieces were included in paraffin, suffered semi-serial cuts and were stained by hematoxylin and eosin. The results showed a delayed wound healing process after teeth extractions, which was more accentuated as more intense was the radiation X.
Keywords
Radiation X, wound healing process, tooth extraction
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