Transverse maxillary and mandibular growth during and after Bionator therapy: Study with metallic implants

André da Costa MONINI, Luiz Gonzaga GANDINI JÚNIOR, Luiz Guilherme Martins MAIA, Ary dos SANTOS-PINTO

Introduction: This study evaluated posteroanterior cephalograms before and ater treatment and long term follow up of Class II division 1 patients treated with bionator. Objective: The objective was to demonstrate the transverse growth of maxilla and mandible during and ater bionator therapy. Methods: Measurement of transverse dimensions between posterior maxillary and mandibular implants, as well as the distances between the buccal, gonial and antegonial points were recorded. Measurements were analyzed at three periods: T1 = before bionator therapy, T2 = ater bionator therapy and T3 = 5.74 years ater T2. Results: There was statistically signiicant transverse increase due to growth and/or treatment for all variables, except for the distance between the anterior maxillary implants. Conclusions: During the study period only the anterior maxillary area did not show transverse growth.

Keywords: Activator appliances. Angle Class II malocclusion. Maxillofacial development.

How to cite: Monini AC, Gandini Júnior LG, Maia LGM, Santos-Pinto A. Transverse maxillary and mandibular growth during and after Bionator therapy: Study with metallic implants. Dental Press J Orthod. 2013 May-June;18(3):72-9.

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