Estabilidade das alterações tegumentares promovidas pelo aparelho regulador de função Frãnkel 2 (RF-2)

O objetivo deste estudo consistiu em verificar a estabilidade das alteracoes tegumentares promovidas pelo aparelho RF-2, num periodo medio pos-tratamento de 7,11 anos. O presente trabalho avaliou 18 pacientes Classe II, Divisao 1, de Angle, sendo dez meninos e oito meninas, tratados com o Regulador de Funcao Frankel 2, por um periodo de 18 meses. A idade media inicial deste grupo era de 10,78 anos, na fase final de tratamento de 12,45 anos e na pos-tratamento, de 19,56 anos. No periodo de tratamento, estes pacientes foram comparados com um grupo controle, contendo pacientes com ma-oclusao de Classe II nao tratados. As alteracoes tegumentares foram analisadas em telerradiografias em norma lateral. Os efeitos do tratamento comparado ao grupo controle foram obtidos por meio do teste "t" independente. Ja as alteracoes promovidas pelo RF-2 nas tres fases estudadas foram analisadas por meio da analise de variância seguida do teste de Tukey (p The aim of this study was to verify the stability of alterations in soft tissue promoted by FR-2 appliance, after a mean post treatment period of 7, 11 years. This study evaluated 18 Angle Class II, Division I, patients, being ten males and eight females. The patients were treated with Frankel 2 appliance.for a period of 18 months. The mean age was J 0.78 years at the baseline; 12.45 years at the end of the treatment and 19.56 years at the follow up period. During the treatment, a group composed of class II malocclusion non treated patients served as control. The soft tissue alterations were evaluated by lateral cephalograms obtained during lhe different phases of the study. The comparison of the treatment with the control group was performed by the independent t-test. The alterations promoted by FR-2 appliance at the three evaluated phases were analyzed by analysis of variance followed by Tukey test (P