Use of Balters’ Bionator in the treatment of anterior crossbite in deciduous dentition: a case report

Abstract

Malocclusion is the third most important oral health issue, affecting children, adolescents, and adults. It has a multifactorial etiology, compromising aesthetics, function, and quality of life. Anterior crossbite occurs when the lower teeth occlude in front of the upper teeth. Early treatment, when correctly diagnosed, is always recommended. The purpose of this work was to describe a clinical case of facial orthopedic treatment in a five-year-old female patient, presenting a complete set of deciduous dentition along with anterior crossbite and deep bite. The treatment was carried out using a modified Bionator de Balters appliance for Class III treatment, with a duration of six months. The use of this appliance aimed at maxillary expansion, vestibularization of upper incisors, and control of mandibular growth. This approach achieved favorable results in the treatment of the condition. However, there is still a recommendation for the continuous use of the appliance due to the patient’s growth period and transition between dentitions. The appliance is cost-effective, causes minimal discomfort, and is easy to use. This study demonstrated the importance of early diagnosis, prevention, and treatment of anterior crossbite, with a successful clinical outcome in interceptive and orthopedic treatment, preventing complications, future treatments, and difficulties in subsequent interventions.