安氏Ⅱ类下颌后缩畸形患者颞颌关节窝位置变化的研究  

Analysis of the position of the glenoid fossa in Angle class Ⅱ malocclusion with mandibular retrusion

作　　者：刘金波[1] 方飞[1] 雷敬[1] 易娟[1] 

机构地区：[1]湖北省新华医院口腔科,湖北武汉430015

出　　处：《临床口腔医学杂志》2011年第8期493-495,共3页Journal of Clinical Stomatology

摘　　要：目的:研究恒牙初期安氏Ⅱ类下颌后缩畸形患者颞颌关节窝位置的变化。方法:实验组为31例安氏Ⅱ类下颌后缩畸形恒牙列初期病例,男13例,女18例,年龄12.3±0.5岁,对照组为38例安氏Ⅰ类错恒牙列初期病例,男17例,女21例,年龄11.7±0.7岁。在X线头颅定位侧位片上进行头影测量,比较关节窝的位置变化。结果用独立样本t检验。结果:同对照组安氏Ⅰ类错相比,安氏Ⅱ类错患者的关节窝位置更偏远中(GF-S on FH,GF-Ptm on FH,GF-FMN)(P<0.05)。结论:下颌后缩时,关节窝可能后移,评估关节窝位置的最佳测量指标是关节窝到前鼻嵴点间的距离(GF-FMN)。Objective：To assess the position of the glenoid fossa in subjects with Class Ⅱ malocclusion associated with mandibular retrusion and normal mandibular size in the mixed dentition.Materials and Method：A sample of 31 subjects（16 male,14 female）,age（12.3±0.5）years,with skeletal and dental Class Ⅱ malocclusion associated with mandibular retrusion,normal skeletal vertical relationships,and normal mandibular dimensions,was compared with a matched group of 38 subjects（17 male,21 female）,age（11.7±0.7）years with skeletal and dental Class Ⅰ relationships.The comparisons between the Class Ⅱ group and the control group on the cephalometric measures for the assessment of glenoid fossa position were performed by means of a nonparametric test for independent samples（Mann-Whitney U-test,P 0.05）.Result：Subjects with Class Ⅱ malocclusion presented with a significantly more distal position of the glenoid fossa,when compared with the control group as measured by means of three parameters（GF-S on FH,GF-Ptm on FH,and GF-FMN）.Conclusion：A posteriorly displaced glenoid fossa is a possible diagnostic feature of Class Ⅱ malocclusion associated with mandibular retrusion.An effective cephalometric measurement to evaluate glenoid fossa position is the distance from the glenoid fossa to the frontomaxillonasal suture（GF-FMN）.

关 键 词：安氏Ⅱ类错 关节窝 X线头影测量 下颌后缩 

分 类 号：R783.5[医药卫生—口腔医学]