Treatment of Class II malocclusion with metallic bite plane associated to miniscrew-supported hybrid expander

Admin Dental Press

Edition V19N06 | Year 2020 | Editorial Clinical case | Pages 113 to 125

Marcelo Keiji SUZUKI, Cristiane Barros ANDRÉ, José RINO NETO

Introduction: Mandibular deficiency is present in more than 70% of cases of Class II maloc- clusion and in some cases it is associated to transverse maxillary deficiency that demands both appliances for mandibular advancement and maxillary expansion. Description: This case report aims to describe the treatment of a male patient aged 11 years 7 months, with the dental characteristics aforementioned and pos-pubertal spurt stage, who was treated with an inclined bite plane of acrylic resin covered with a metal track, promoting mandibular advancement, associated with a Hyrax expander supported by mini-implants along the palatal raphe, expanding the suture in a parallel manner. In a few months, the Class II relation was corrected by dental alterations of incisors inclination, leveling the curve of Spee and increasing the upper intermolar distance. Conclusion: The hybrid appliance was efficient in sagittal, vertical and transverse correction, posing as a new approach for early intervention of Class II malocclusion.

Malocclusion, Angle Class II. Orthodontic anchorage procedures. Palatal expansion technique. Mandibular advancement. Orthodontic appliance design.

Suzuki MK, André CB, Rino Neto J. Treatment of Class II malocclusion with metallic bite plane associated to miniscrew-supported hybrid expander. Clin Orthod. 2020 Dez-2021 Jan;19(6):113-25.

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