Coronal dentinal tubules of non-erupted deciduous incisors
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Data
2002-03
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Resumo
The diameter and density of coronal dentinal tubules were assessed in non-erupted human deciduous incisors. Using
liquid nitrogen, frozen samples were fractured in longitudinal and oblique directions and observed by means of a Jeol
JSM-6100 scanning electron microscope. It was observed that the diameter of dentinal tubules ranged from 0.50 to
1.94 micrometers and increased significantly from the outer to the inner layers. However, comparing the incisal, mid-
dle and cervical thirds, no statistically significant differences were observed. The number of tubules per square milli-
meter varied from 3,281 to 32,313 and also increased from the external dentinal surface to the dentinal surface of the
pulp chamber.
Descrição
Palavras-chave
Dentin, Pediatric dentistry, Deciduous, Tooth, Dentina, Odontopediatria, Dente decíduo
Citação
COSTA, Luciane Ribeiro de Rezende Sucasas da; WATANABE, Ii-Sei; KRONKA, Marcia Consentino. Coronal dentinal tubules of non-erupted deciduous incisors. Pesquisa Odontológica Brasileira, São Paulo, v. 16, n. 1, p. 12-17, Jan./Mar. 2002.