Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Clínica Infantil, área de Ortodontia (Ribeirão Preto/SP, Brasil).
Private practice (Ribeirão Preto/SP, Brasil).
Dental Press J Orthod. 2021 Jun 25;26(3):e21bbo3. doi: 10.1590/2177-6709.26.3.e21bbo3. eCollection 2021.
Skeletal posterior crossbite (SPCB) has a multifactorial etiology, as it may be caused by parafunctional habits, atypical position of the tongue, tooth losses and maxillary or mandibular transverse skeletal asymmetries. Skeletal involvement may lead to facial changes and an unfavorable aesthetic appearance. The treatment of SPCB diagnosed in an adult patient should be correctly approached after the identification of its etiologic factor. Surgically-assisted rapid maxillary expansion (SARME), one of the techniques used to correct SPCB in skeletally mature individuals, is an efficient and stable procedure for the correction of transverse discrepancies that may be performed in the office or in a hospital.
This study discusses the results of asymmetrical SARME used to correct unilateral SPCB associated with transverse mandibular asymmetry.
The treatment alternative used in the reported case was quite effective. At the end of the treatment, the patient presented adequate occlusion and facial aesthetics.
骨骼后牙反合(SPCB)具有多因素病因,因为它可能是由功能紊乱习惯、舌的异常位置、牙齿缺失和上颌或下颌横向骨骼不对称引起的。骨骼的受累可能导致面部变化和不美观的外观。在成年患者中诊断出的 SPCB 的治疗应在确定其病因因素后正确地进行。手术辅助上颌快速扩展(SARME)是用于矫正骨骼成熟个体中 SPCB 的技术之一,是一种用于矫正横向差异的有效且稳定的方法,可在办公室或医院进行。
本研究讨论了用于矫正单侧 SPCB 伴横向下颌不对称的不对称 SARME 的结果。
报告病例中使用的治疗选择非常有效。在治疗结束时,患者的咬合和面部美观得到了改善。