Treatment of anterior open bite in a patient with dentinogenesis imperfecta

Dentinogenesis imperfecta (DGI) is a genetic disorder characterized by severe hypomineralization of dentin and an altered dentin structure. Teeth with this disease have an amber hue due to the brittle dentin, and exhibit frequent wear and chipping of the enamel and dentin due to insufficient adhesion to the superficial enamel. Herein, we report the successful orthodontic treatment of a patient with DGI. A 24-year-old woman had chief complaints of anterior open bite (AOB). She showed Class II and open bite skeletal discrepancy with excessive anterior facial height and lip incompetency due to mandibular backward rotation. Edgewise treatment with temporary anchorage devices were used to induce counterclockwise rotation of the mandible by intruding the molars and reducing the overjet by total arch distalization. Resultantly, the facial profile and occlusion showed substantial improvement without any noticeable side effect.