Minh Nguyen Hoang, Dung Truong Manh, Ngoc Vo Truong Nhu, Tuan Pham Hoang, Ha Nguyen Hong, Son Le Van, Phuong Nguyen Thi Thu, Doi Hoang Thi, Thanh Vo Van, Dinh Thien Chu, Phuong Nguyen Thi, Dinh Toi Chu
School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam.
Hanoi National Hospital of Odontostomatology, Hanoi, Vietnam.
Open Access Maced J Med Sci. 2019 Oct 15;7(24):4239-4243. doi: 10.3889/oamjms.2019.367. eCollection 2019 Dec 30.
Maxillary Lefort I osteotomy, mandibular bilateral sagittal split ramus was frequently used in correcting skeletal class III malocclusion. There was a lack of research on class III malocclusion patients' quality of life (QoL) after bimaxillary osteotomy.
Class I Intermaxillary relationship was achieved, aesthetic was significantly improved. Significant improvement in Class III skeletal patients' quality of life was acquired. The achievement of harmonious face would be beneficial to the facial aesthetics of patients, thus improving the quality of life.
Harmonious face index is an effective criterion in assessing the surgery's outcome. In this study was conducted on 30 patients at Hanoi National Hospital of Odontostomatology, Viet Duc Hospital, and Hong Ngoc Hospital from April 2017 to April 2018, and it was a quasi-experimental study with self-comparison, 12 months follow up.
Orthognathic surgery effectively corrected malocclusion crossbite, dental compensation, and helped to improve facial aesthetics. 100% of patients had the quality of life improved, good quality of life consisted of 86.7%. In comparison with a harmonious facial index of Kinh ethnic in Vietnam, 70% of patients achieved skeletal harmony, 63.3% of patients achieved dental harmony, 80% achieved soft tissue harmony.
Vietnamese harmonious facial index should be used in planning and pre-surgical simulation.
上颌Le Fort I型截骨术、下颌双侧矢状劈开术常用于矫正骨性III类错牙合畸形。关于双颌截骨术后III类错牙合畸形患者生活质量（QoL）的研究较少。
实现I类颌间关系，显著改善美观。III类骨性患者的生活质量得到显著提高。实现面部和谐将有利于患者的面部美观，从而提高生活质量。
和谐面部指数是评估手术效果的有效标准。本研究于2017年4月至2018年4月在越南河内口腔医院、越德医院和鸿玉医院对30例患者进行，这是一项自我对照的准实验研究，随访12个月。
正颌手术有效矫正了错牙合反牙合、牙代偿，并有助于改善面部美观。100%的患者生活质量得到改善，其中生活质量良好的占86.7%。与越南京族的和谐面部指数相比，70%的患者实现了骨骼和谐，63.3%的患者实现了牙齿和谐，80%的患者实现了软组织和谐。
越南和谐面部指数应用于手术规划和术前模拟。
