中文摘要：

目的：测量和评估正颌外科术前和术后患者的人格特征及其变化。方法：选取中山大学附属口腔医院正颌外科中心2008年6月—2009年3月实施正颌手术的患者36例,以2006年华东师范大学选取325名受试者（大学生161名,外企员工164名）所制定的常量表为对照组,采用美国卡特尔教授编制的卡特尔16种个性因素问卷（16PF）,测量患者手术前、后的人格特征并分析其变化,应用SPSS10.0软件包对数据进行t检验。结果：正颌外科手术前,患者组的16PF-A因素（乐群性）、16PF-F因素（活跃性）和16PF-L因素（警惕性）与对照组相比具有显著性（P〈0.05）;术后3个月复诊患者31例,患者16PF-A因素（乐群性）和16PF-L因素（警惕性）在术前、术后存在显著差异（P〈0.05）。结论：正颌外科手术患者有缄默、孤独、冷漠,喜欢待在自己的小圈子,不爱与人交流的倾向;同时有轻松、兴奋、随遇而安,对事件抱有无所谓的态度;存在敏感多疑,不信任别人,与人相处常常斤斤计较,不顾及别人利益的人格特征倾向;术后3个月,患者开始变得外向、热情、乐群,信赖随和,容易与人相处,但患者轻松、兴奋、随遇而安,对事件抱有无所谓的态度并无明显改变。

英文摘要：

PURPOSE： To investigate the changes of personality traits in patients with orthognathic surgery. METHODS： Thirty-six patients were enrolled in this study. All patients received orthognathic surgery between June 2008 and March 2009 in the Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Sun Yat-sen University. The Sixteen Personality Factors Questionnaire made by Raymdond B.Cattel was used to evaluate the patients＇ personalities before and after operation. Statistical analyses were performed with Student＇s t test using SPSS10.0 software package. RESULTS： Factor A （warmth）, factor F （liveliness） and factor L （paranoia） were increased in patients undergoing orthognathic surgery compared with the normal group （P〈0.05）. 3 months after surgery, the patients got significantly higher scores of factor A and factor L than before. CONCLUSIONS： The patients undergoing orthognathic surgery have the personalities of tongueless, solitary, cold, selfish,who like to stay in charmed circle with little communion, wild, fun loving, taking things as they come, having no particular interest in others, sensitive, over suspicious, haggling over every ounce and disregarding avail of others. Meanwhile, the patients asked the process and effect of operation time after time during the chat before surgery.