Resumo (EN)
Introduction — This study evaluated the distribution of the rotational growth groups of Lavergne and Petrovic, using the angle measured ANB and the individualization of the angle ANB proposed by Goffi, in young Brazilian individuals, presenting Basal and Dental Class | with facial type provertion. Methods — Twenty teleradiographys were selected in lateral norm, being 14 male and 6 female. These teleradiographys were of individuals that presented the facial type provertion, that were not submitted to previous orthodontic-orthopedic treatment. Results — The results were appraised for the statistical tests of arithmetic mean, standard deviation, test “t” of Student for sample. Conclusion — The individualization of the angle ANB, did not show statistically influence in the distribution of the rotational groups of Lavergne and Petrovic in patients with facial type provertions