Dedicatória viii À minha irmã, Luciana e ao meu cunhado, José Luiz, pela sua amizade, lealdade e carinho. À todos vocês, dedico este trabalho. Agradecimentos Agradecimento Especial x Ao Prof. Dr. José Fernando Castanha Henriques Ao Prof. Dr. José Fernando Castanha Henriques, coordenador do curso de doutorado, pela orientação e dedicação na realização deste trabalho, bem como de todos os meus passos durante todo o curso de mestrado e doutorado, pelo convívio e por suas palavras de conforto e sabedoria. Minha eterna gratidão. "Muitos são professores, poucos são mestres. Os professores ensinam por palavras em templos, com os mestres aprendemos por ações e exemplos". Agradecimento Especial xi À minha querida sogra, Luiza, , a quem sempre tive como mãe, agradeço a força, o incentivo e a forma acolhedora com que sempre me recebeu em sua casa.
Objective: To evaluate changes in the inclination of anterior teeth caused by orthodontic treatment using a Straight-Wire appliance (Capelozza's prescription II), before and after the leveling phase with rectangular stainless steel archwires. Methods: Seventeen adult subjects were selected who presented with facial pattern II, Class II malocclusion, referred for compensatory orthodontic treatment. Inclinations of anterior teeth were clinically assessed using CT scans at three different times, i.e., after the use of 0.020-in (T1), 0.019 X 0.025-in (T2) and 0.021 X 0.025-in (T3) archwires. Friedman's analysis of variance was applied with 5% significance level to compare the three assessments (T1, T2 and T3). Results: It was noted that the rectangular wires were unable to produce any significant changes in inclination medians, except for a slight change in mandibular lateral incisors (p<0.05). On the other hand, variations in inclination were smaller when 0.021 X 0.025-in archwires were employed, particularly in maxillary incisors (P<0.001). Conclusion: The use of rectangular 0.021 X 0.025-in archwires produces more homogeneous variations in the inclination of maxillary incisors, but no significant median changes.
AbstractKeywords: Computed Tomography. Orthodontic treatment. Tooth inclination.
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