Comparative study of the maturation and eruption of permanent teeth in subjects with vertical and horizontal growth patterns / Estudo comparativo da maturação e erupção dos dentes permanentes em jovens com padrões de crescimento vertical e horizontal

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The objective of this study was to compare the maturation stage and mean age of eruption of permanent teeth in Caucasian individuals with vertical and horizontal growth patterns. For that purpose, lateral cephalograms of 111 young subjects were selected in order to classify the individuals according to the facial growth pattern. The 30 subjects presenting the strongest predominance of vertical growth (15 males and 15 females), as well as the 30 presenting the strongest predominance of horizontal growth (15 males and 15 females) were selected, which comprised the vertical and horizontal groups, respectively. Panoramic radiographs of all individuals, obtained at 8 years of age (mean age 8.5067 years for the vertical group and 8.4800 for the horizontal group), were employed to evaluate the maturation of the permanent teeth, expressed by the dental age, according to the method of DEMIRJIAN; GOLDSTEIN; TANNER (1973). From the total sample of 111 young subjects, previously scored as to the facial growth pattern, 533 pairs of dental casts of 97 individuals ranging from 5 to 13 years of age were selected for evaluation of the mean age of eruption of the permanent teeth. These casts were assigned to two groups (vertical and horizontal). The mean age of eruption of the permanent teeth was calculated through Karber’s method. Comparisons between groups were accomplished by means of independent t tests. Results demonstrated a statistically significant difference between the dental age of the vertical and horizontal groups, with the vertical group presenting a more advanced dental age than the horizontal. Regarding the mean age of eruption, among the 28 permanent teeth observed (excluding the third molars) only the left maxillary premolars demonstrated a statistically significant difference between the vertical and horizontal groups. Therefore, young subjects with vertical growth pattern should be expected to present earlier dental maturation than horizontal growers

ASSUNTO(S)

jovens dente permanente erupção dentária

ACESSO AO ARTIGO

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