头帽肌激动器矫治前后下颌骨变化的研究  

Mandibular changes during treatment with headgear-activator

作　　者：麦志才[1] 

机构地区：[1]广东省吴川市人民医院,广东吴川524500

出　　处：《中国当代医药》2009年第13期11-12,共2页China Modern Medicine

摘　　要：目的:探讨患者下颌骨经头帽肌激动器矫治前后的变化,为临床医生选择合适治疗方案提供理论依据。方法:选择经头帽肌激动器矫治的患者10例,年龄10～12岁,通过测量头颅侧位X线片12项下颌骨测量项目在矫治前后的变化,说明头帽肌激动器的矫治效果。结果:①角度变化,SNB角平均增大1°,ANB角减小了1.3°,两者矫治前后比较,差异有统计学意义(P<0.05);②长度变化,下颌升枝(Ar-G0)、体部(G0-Me)的长度在矫治后,平均分别增长1.9mm、1.5mm,但二者与治疗前比较,差异无统计学意义(P>0.05);下颌总长度(Ar-Gn)在矫治后平均增长3.2mm,矫治前后的变化有统计学意义(P<0.01)。结论:头帽肌激动器能有效的刺激下颌骨的增长。Objective： The purpose of this study was to investigate the mandibular changes after treatment with the headgear-activator. Methods： Ten children who were 9 to 12 years old,lateral eephalometfic radiographs were taken at the pre- and post-treatment. Results： The SNB angle enlarge 1°（P〈0.05）and ANB angle reduce 1.3°（P〈0.05）on the means during the treatment. The length of mandibule （Ar-Gn） were significantly increased 3.2 mm（P〈0.01 ）.But the length of mandibular ramus and mandibular body unsignificantly increased 1.9 mm, 1.5 mm, respectively on the means after the treatment. Conclusion： It＇s very effective to enlarge the mandibule with headgear-activator.

关 键 词：下颌骨 头影测量 头帽肌激动器 

分 类 号：R783.9[医药卫生—口腔医学]