The effect of orthognathic surgery on facial expressions and psychosocial well-being - a 4D preliminary study

正颌手术对面部表情和社会心理健康的影响 - 4D 初步研究

• 批准号: 427616114
• 负责人: Dr. Anja Quast
• 金额: --
• 依托单位: Poliklink für Kieferorthopädie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/427616114?language=en
• 关键词: effect; orthognathic; surgery; facial; expressions

Facial identity and facial expressions have a major impact on our daily communication and self-perception. Due to skeletal and dental harmonization by combined orthodontic and surgical treatment, facial soft tissue changes in morphology and function. However, the extent of the dynamic soft tissue changes and the effect on facial expressions is discussed controversially. To the best of our knowledge, no studies exist investigating whether pre- and postsurgical differences in facial movement affect psychosocial well-being. The aim of this prospective, single-arm, monocentric study is to determine the psychosocial well-being and facial expressions of patients who undergo orthognathic surgery one day before (T0) and four months after (T1) surgery. The sample consists of 20 patients with need for orthognathic surgery from the department of orthodontics at the University Medical Center Goettingen. The analyses of facial movements are performed by non-invasive, four-dimensional stereophotogrammetry by a motion capture system, which records 60 three-dimensional images per second. It is an innovative and objective method to assess facial expressions. Each patient performs two expressions: 1) maximal smile and 2) lip purse. The change in magnitude, speed and motion similarity between T0 and T1 is measured. Psychosocial well-being in the fields of quality of life, self-efficacy and body image is assessed using a set of validated questionnaires. Since for most patients improvement in quality of life is the primary motivating factor for orthognathic surgery, the oral health related quality of life is defined as primary outcome. Statistical analysis includes the pre- and postsurgical comparison of facial expressions and psychosocial well-being as well as the correlations between both factors. We hypothesize that orthognathic surgery improves psychosocial well-being and changes facial movements. A positive correlation between the magnitude of maximal smile and quality of life is expected. The results of this study contribute to patient-centered pre- and postsurgical care and help to optimize soft-tissue related orthognathic surgery planning.

面部识别和面部表情对我们的日常交流和自我感知有着重要的影响。正畸与外科联合治疗可使骨骼和牙齿协调一致，从而改变面部软组织的形态和功能。然而，动态软组织变化的程度和面部表情的影响是有争议的讨论。据我们所知，目前还没有研究调查手术前后面部运动的差异是否会影响心理健康。这项前瞻性、单臂、单中心研究的目的是确定接受正颌手术的患者在手术前一天（T0）和手术后四个月（T1）的心理社会健康和面部表情。样本包括20例患者，需要正颌外科手术，从牙科在哥廷根大学医学中心。面部运动的分析是由非侵入性的，四维立体摄影测量的运动捕捉系统，每秒记录60个三维图像。这是一种创新的和客观的方法来评估面部表情。每个患者执行两个表情：1）最大微笑和2）唇荷包。测量T0和T1之间的幅度、速度和运动相似性的变化。社会心理健康的生活质量，自我效能和身体形象领域的评估使用一套有效的问卷。由于对大多数患者来说，生活质量的改善是正颌外科手术的主要动机因素，因此口腔健康相关的生活质量被定义为主要结局。统计分析包括手术前后面部表情和心理社会健康的比较以及两个因素之间的相关性。我们假设正颌外科手术可以改善心理健康和改变面部运动。预期最大微笑的大小与生活质量之间存在正相关。本研究的结果有助于以病人为中心的术前和术后护理，并有助于优化软组织相关的正颌手术计划。