摘要
目的联合应用肌电图仪与咬合分析仪评价骨性Ⅲ类患者正颌术后的肌肉及咬合情况的变化。方法收集15例骨性Ⅲ类正颌手术患者及15例正常患者,病例组在正颌术后3个月、6个月、1年分别进行BiopakⅡ肌电图仪与T-ScanⅢ咬合分析系统同步测量,使用配对t检验比较各组间的差别。结果除息止位外,术后6个月组肌电电位及总力显著高于3个月组(P<0.05);术后1年组功能运动时主要活动肌肉的肌电电位显著高于术后6个月组(P<0.05),正常组主要活动肌肉的肌电电位和总力显著高于术后1年组(P<0.05),其余指标无显著性差别。结论骨性Ⅲ类患者正颌手术后1年中,肌肉及咬合功能逐渐增强,但变化不完全同步,且都不能达到正常水平。
Objective To evaluate the post-surgery change of the muscular activation and occlusion of the patients with the skeletal Class Ⅲ malocclusion. Methods Fifteen skeletal Class II1 malocclusion patients and 15 subjects with normal occlusion were included in this study. BioEMG Ⅱ and T-Scan Ⅲ system were used to evaluate the muscular activation and occlusion of the 15 patients 3 months, 6 months and one year after orthognathic surgery. The results were statistically analyzed. Results EMG and total occlusion force（TOF）were significantly higher 6 months post-surgery than 3 months post- sttrgery（P 〈0. 05） ,and one year post-surgery than 6 months post-surgery in the active muscles. The control group had significant higher EMG and TOF than one year post-surgery group in the active muscles. Conclusion The muscular activation and occlusion of skeletal Class Ⅲ patient were improved after surgery but not synchronous and did not reach the normal level.
出处
《北京口腔医学》
CAS
2014年第3期147-150,共4页
Beijing Journal of Stomatology
基金
国家自然科学基金(81200820)
首都卫生发展科研专项基金(首发2011-2014-01)
