Surgical-orthodontic Treatment with Molar Protraction in a Patient with Skeletal Class III Anterior Open Bite and Facial Asymmetry

Authors

Yi-Hsuan Chen, Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan; Graduate Institute of Craniofacial and Oral Science, Chang Gung University, Taoyuan, Taiwan
Cheng-Hui Lin, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
Ellen Wen-Ching Ko, Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan; Graduate Institute of Craniofacial and Oral Science, Chang Gung University, Taoyuan, TaiwanFollow

Abstract

A 20-year-old young male complained of his protrusive and deviated chin. He also presented occlusal plane cant, anterior open bite and unrestorable maxillary right first molar and mandibular left first molar. The severe maxilla-mandibular discrepancy was solved with surgery-first double jaw orthognathic surgery. The space of two extracted first molars was closed by protraction of the second and third molars after surgery. Two protraction techniques were used in this case, including closing maxillary right first molar space with reciprocal retraction, and closing mandibular left first molar with one miniscrew as an absolute anchorage. Careful biomechanical consideration was used during protraction to prevent worsening of the anterior open bite and jeopardizing midline control. Good occlusion, balanced facial symmetry and lateral facial profile were achieved within 2 years of treatment duration and have been well-maintained after 1 year of follow up.

Recommended Citation

Chen, Yi-Hsuan; Lin, Cheng-Hui; and Ko, Ellen Wen-Ching (2017) "Surgical-orthodontic Treatment with Molar Protraction in a Patient with Skeletal Class III Anterior Open Bite and Facial Asymmetry," Taiwanese Journal of Orthodontics: Vol. 29: Iss. 4, Article 4.
https://doi.org/10.30036/TJO.201712_29(4).0004
Available at: https://www.tjo.org.tw/tjo/vol29/iss4/4

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