Resumen

OTANO LAFFITTE, Gladys et al. Dental extractions and occlusal interferences postorthodontic treatment. Rev Cubana Estomatol [online]. 2008, vol.45, n.3-4, pp. 0-0. ISSN 1561-297X.

A study of 20 patients under 30 years old discharged from the Orthodontics Service of the Faculty of Stomatology of Havana City was conducted to evaluate the influence of some morphological variables as the canine relation, contact in maximum intercuspidation position (MIP), overbite and overjet. The study revealed the predominance of patients with occlusal interferences that were more frequent in the group with no dental extractions. Most of the patients presented canine neutro-occlusion; however, both groups showed a great percentage of occlusal interferences. In the group with extractions, the contact in MIP of the anterior teeth was mostly attained in the group with extractions. In all the corresponding movements the interferences were more frequent in the working area. It was observed a prevalence of anterior canine overbite of 1/3 of the crown, but the occlusal interferences predominated in the same way, mainly in the group without extractions.

Palabras clave : functional occlusion; occlusal interferences; centric relation; maximum intercuspidation position.