Evaluation of occlusal plane changes in retroverted, neutroverted and proverted patients, with Class II, division 1, malocclusion treated with Balters’ Bionator

Ingrid Madeira de Barros NUNES, Kurt FALTIN JR., Cristina L. F. ORTOLANI

Aim: This work aims to verify the changes of Ricketts functional occlusal plane making use of variables which guide this same plane in the cephalometric analysis of Ricketts and Schwarz-Faltin among patients with Class II, division 1 malocclusion, associated to mandible retrognathism, whose therapy indicated has been Bionatortherapy. Methods: The sample collected in this retrospective survey has 128 lateral cephalograms of 64 retroverted, neutroverted and proverted individuals, of both genders, at the stage of developing occlusion, either in mixed phase or permanent young. The age scale of individuals selected by the survey goes from 7 years and 1 month up to 13 years and 2 months in the T1 moment, with an initial mean age of 10 years. The mean length of time of treatment has been of 19.7 months. Results and Coonclusion: The overall results have been submitted to statistical analysis and have shown that in the group of retroverted patients the occlusal plane goes round clockwise, in the group of neutroverted ones, the occlusal plane did not show up any relevant alterations between moments T1 and T2, and in the group of proverted patients the occlusal plane goes round counterclockwise. The occlusal plane control in the Bionatortherapy through the handle of the Bionator according to the facial type of each patient, through selective worn out acrylic and consequent diversified eruption of the teeth, can indeed cause favorable influence towards the overall growing up of the face in every facial type.

Keywords: Occlusal plane. Bionator therapy. Dentofacial Orthopedic.

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