Abstract:

The aim of this case report is to present a female patient with skeletal Class I, dental left Angle Class I relationship with skeletal unilateral posterior crossbite was treated by using asymmetric rapid maxillary expansion appliance and fixed orthodontic treatment. A 13-year, 9-month female came to our clinic with the complaint of infraposition of upper right canine. In clinical and radiographic evaluation, skeletal class I and dental left Angle class I relationship with skeletal unilateral posterior crossbite were found. Treatment was started with asymmetric rapid maxillary expansion appliance. After 6 months, the transversal relationship correction between maxillara and mandibula were achieved. 0.022 slot MBT straightwire brackets were applied to the upper and lower teeth after maxillary expansion treatment. Finally, in the case of skeletal Class I, dental left Angle Class I relationship with skeletal unilateral posterior crossbite was treated in 15 months with a good occlusion, normal overbite-overjet and achieved dental Angle Class I relationships.

Keywords: