Estudo dos estagios de desenvolvimento do primeiro molar permanente inferior e sua relação com a idade cronologica em crianças da região de Piracicaba

AUTOR(ES)
DATA DE PUBLICAÇÃO

1993

RESUMO

The present paper has had the purpose of studying the development stages of the right permanent mandibular first molar and its relationship with the cronological age of white children in the region of piracicaba. About 102 boys and 104 girls, between the ages of 24 months and 119 months (2 years and 9 years 11 months) were submited to a radiographic examination, the oblique jaw radiography. These radiographs were used to estimate the ages when the permanent mandibular first molar had the crown completed at alI, 2/3 of root completed and, finally, the apical end of root completed. Tables were made on these radiographic results which showed that the stage of crown completed extended from 36 to 53 months for the males and from 30 to 53 months for the females; the stage of 2/3 of root completed of the right permanent mandibular first molar showed the ages from 54 to 119 months for the males and 60 to 119 months for the females and, at last, the stage of the apical end of root completed extended from 102 to 119 months for both sex. The results permited to observe that there wasn t any difference between the dental development stages when we compared the sex with a determined age: the rate of mineralization of the right permanent mandibular first molar in the stages was the same for both sex.

ASSUNTO(S)

crianças molares dentes deciduos - erupção dentes - radiografia

ACESSO AO ARTIGO

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