Class II malocclusion treated by combining a lingual retractor and a palatal plate

Kyu-Rhim Chung, Yoon-Ah Kook, Seong-Hun Kim, Sung-Seo Mo, Jae-An Jung
American Journal of Orthodontics and Dentofacial Orthopedics 2008, 133 (1): 112-23
In this article, we describe the treatment of a woman, aged 25 years 8 months, with a Class II malocclusion, severe anterior protrusion, and a high mandibular plane angle. The treatment plan consisted of extracting both maxillary first premolars and mandibular second premolars. En-masse retraction of the 6 maxillary anterior teeth was performed with a lingual approach combining a C-lingual retractor and a C-palatal plate (C-plate). However, the mandibular dentition was treated with conventional labial fixed appliances. After the maxillary anterior retraction, labial fixed appliances were placed on the maxillary dentition only during the finishing stage. Correct overbite and overjet, facial balance, and improved lip protrusion were obtained. The active treatment period was 17 months, and the results were stable for 13 months after debonding. This C-lingual retractor and C-plate combined retraction method can be effective for intrusive retraction of the anterior teeth.

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