Effectiveness of Myobrace Therapy in Correcting Anterior Crossbite in Early Mixed Dentition: A Retrospective Study

This study evaluated the outcomes of treating anterior crossbite in early mixed dentition patients using the Myobrace appliance.

A retrospective study was conducted on 30 Vietnamese children aged 6-10 years with anterior crossbite from 2020 to 2022. Oral habits, including tonguethrusting, lingual frenum interference, and tongue posture, were evaluated pre- and post-therapy. Clinical, radiographic, and soft tissue outcomes were assessed to monitor craniofacial, dental, and esthetic changes before and after treatment.

The mean age was 8.1 years (SD = 0.94), with 60% female participants. The average treatment time was 14.5 months (SD = 1.31). Tonguethrusting decreased from 23.3 to 3.3%, lingual frenum interference resolved completely (43.3 to 0%), and low tongue posture declined from 33.4 to 6.6%. Overjet improved from -2.5 (SD = 1.90) to 1.6 mm (SD = 1.14), and overbite reduced from 2.2 (SD =0.92) to 0.8 mm (SD =1.14). Maxillary and mandibular incisor angulations showed significant improvements: U1 to SN increased from 100.4° (SD = 7.14) to 109.5° (SD = 7.18), and IMPA decreased from 89.8° (SD = 8.77) to 87.0° (SD = 7.97). Most patients adhered to the recommended wear and exercise regimens, though 40% experienced appliance detachment in the first 2 weeks.

The Myobrace system effectively corrected anterior crossbite, improved oral habits, and enhanced dental alignment in early mixed dentition, promoting functional and esthetic improvements.

Pham TT, Tran BC, Pham TTH. Effectiveness of Myobrace Therapy in Correcting Anterior Crossbite in Early Mixed Dentition: A Retrospective Study. Int J Clin Pediatr Dent 2025;18(10):1243-1248.