Horizontal change of philtrum after orthognathic surgery in patients with facial asymmetry
Joh Ye-Won, 박현수, 양훈주, 황순정,
소속 상세정보
( Joh Ye-Won ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Surgery
박현수 ( Park Hyun-Soo ) - Seoul Leaders Dental Clinic
양훈주 ( Yang Hoon-Joo ) - Seoul National University Dental Hospital Orthognathic Surgery Center
황순정 ( Hwang Soon-Jung ) - HSJ Dental Clinic for Oral and Maxillofacial Surgery
Abstract
Background: Soft tissue asymmetry such as lip canting or deviation of the philtrum is an important influencing factor for unbalanced facial appearance. Lip canting could be improved by the correction of the occlusal canting or positional change of the mentum. Although there are many studies about changes of lip canting, however, postoperative changes of philtrum deviation have not been yet reported. In this study, we investigate the positional change of the philtrum after orthognathic surgery and influencing factors.
Methods: Positional change of the philtrum was evaluated in 41 patients with facial asymmetry who underwent bimaxillary surgery, in relation to other anatomical soft tissue landmarks using a frontal clinical photo. The surgical movement of the maxillary and mandibular dental midline and canting were measured in postero-anterior cephalogram before and 1 day after surgery. The same procedure was repeated in patients with more than 1.5?mm perioperative change of the mandibular dental midline after bimaxillary surgery.
Results: Maxillary dental midline shifting and canting correction did not have a significant correlation with lateral movement of the philtrum midline. However, the mandibular shift had a statistically significant correlation with a lateral movement of the philtrum (p?
Conclusion: The horizontal change of the philtrum is influenced by lateral mandibular movement in patients with facial asymmetry, rather than maxillary lateral movement.
키워드
Facial asymmetry; Philtrum; Dental midline; Orthognathic surgery
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