New method for an evaluation of the esthetical improvements resulting from a mandibular angle reduction
김주환, 한세진, 김문영,
소속 상세정보
김주환 ( Kim Joo-Hwan ) - Dankook University College of Dentistry Department of Oral and Maxillofacial Surgery
한세진 ( Han Se-Jin ) - Dankook University College of Dentistry Department of Oral and Maxillofacial Surgery
김문영 ( Kim Moon-Young ) - Dankook University College of Dentistry Department of Oral and Maxillofacial Surgery
Abstract
Objectives: This paper proposes Han’s ratio as an objective and quantitative comparative result obtained from pre and postoperative data in patients with a mandibular angle reduction.
Materials and Methods: Thirty patients, 12 men and 18 women, who visited the Department of Oral and Maxillofacial Surgery with the chief complaints of skeletal mandibular prognathism and prominent mandibular angle were selected. The subjects were classified into 3 groups according to the types of surgical procedures involved. Group A consisted of patients who underwent mandibular angle resection and mandibular setback. Group B was comprised of patients with mandibular angle resection, mandibular setback and genioplasty. Group C consisted of patients with mandibular angle resection, mandibular setback, Le Fort I osteotomy, and genioplasty. The landmarks placed in pre and postoperative frontal photographs were used to obtain the Han’s ratio in each group. The Han’s ratios were compared pre- and postoperation and according to the surgical techniques applied.
Results: Of the 3 groups who had undergone a mandibular angle resection, all showed a statistically significant increase in Han’s ratio. On the other hand, there was no statistically significant difference based on the surgical techniques used.
Conclusion: The ratio of the lateral lower face proposed in this study is a potential indicator of postoperative esthetic enhancement in mandibular angle reduction surgery.
키워드
Mandibular angle; Orthognathic surgery; Surgery; Plastics; Facial analysis
원문 및 링크아웃 정보
등재저널 정보