RESUMO
A modified pendulum appliance with 2 endosseus screws for anchorage in the palatal area was used for maxillary molar distalization in each of 15 patients (average age, 13 +/- 2.1 years). Study models and lateral and panoramic x-rays were taken at the beginning and end of the movement to record the dental and skeletal changes. The mean treatment time was 7.8 +/- 1.7 months, the average distal movement of the maxillary molars was 6 mm, and the inclination was 11.3 degrees +/- 6.2 degrees. The second premolars were distalized an average of 4.85 +/- 1.96 mm with inclinations of 8.6 degrees +/- 5 degrees. The maxillary anterior teeth were retruded 0.5 +/- 1.33 mm and palatally inclined 2.5 degrees +/- 2.98 degrees. The mandibular plane rotated posteriorly 1.27 degrees +/- 1.1 degrees. No loss of dental anchorage was observed during the distal movement.
Assuntos
Má Oclusão Classe II de Angle/terapia , Dente Molar , Aparelhos Ortodônticos , Técnicas de Movimentação Dentária/instrumentação , Adolescente , Parafusos Ósseos , Cefalometria , Feminino , Humanos , Masculino , Procedimentos de Ancoragem Ortodôntica , Estatísticas não Paramétricas , Técnicas de Movimentação Dentária/métodosRESUMO
El péndulo es una de las terapias utilizadas para la distalización de los primeros molares superiores en el tratamiento de malocluciones clase II, que no requieren de la colaboración del paciente. Las investigaciones muestran que este aparato es eficaz para lograr la corrección de la clase II, pero tiene efectos adversos como la pérdida de anclaje (mesialización de premolares y vestibularización de anteriores superiores)...