腭托与口外弓在方丝弓增强支抗的临床效果研究  

Randomized controlled trial study for maximum anchorage cases

作　　者：徐连本[1] 郭涛[2] 

机构地区：[1]新乡医学院第一附属医院口腔科,河南卫辉453100 [2]新乡医学院第三附属医院口腔科

出　　处：《中国民康医学》2006年第14期507-507,535,共2页Medical Journal of Chinese People’s Health

摘　　要：目的:介绍腭托用于正畸支抗的临床经验,对腭托和口外弓在方丝弓增强支抗方面进行临床评价。方法:在40例需要强支抗的临床病例中,采用随机方法分为2组,每组20例。实验组:选用腭托加强支抗;对照组:选用口外弓加强支抗。比较治疗前后头颅X线侧位片,测量前牙内收和磨牙支抗的变化。结果:实验组:切牙切缘平均内收6.0mm,支抗磨牙平均前移0.5mm;对照组:除3例因配合较差改用其它方法外,其余病例切牙切缘平均内收6.2mm,支抗磨牙平均前移0.4mm。均获得磨牙强支抗的效果。结论:腭托能作为稳定的正畸支抗,代替口外力的作用,起到磨牙强支抗的作用。该型腭托具有操作简单,不依赖患者合作的优点。Objective： To determine the clinical effects of the palate board and extra- oral forces. Methods： Divide 40 patients in need of maximum anchorage into 2 equal groups at random. Group 1 were used palate board while group 2 were used extra - oral forces to strengthen anchorage. The preretraction and postretraction cephalometrie films were measured. Results.. The test group： the edge of upper incisors were retracted 6.0mm and anchor molar moved anteriorly 0.5mm averagely. The control group：3 patients had to be changed treatment according to the need, the other patients：the edge of upper incisors were retracted 6.2mm, and anchor molar moved anteriorly 0.4mm averagely. The consequences were the same in two groups（ P 〉 0.05）. Conclusions： The palate board could be used efficiently for anchorage control and an altemative choice of extra- oral forces.

关 键 词：腭托 口外弓 方丝弓 正畸支抗 

分 类 号：R738.5[医药卫生—肿瘤]