Begg技术矫治安氏Ⅱ类1分类错第一期头影测量分析  

Analysis on Radiographic Cephalometry of Angle Class Ⅱ Division 1 Malocclusion After Treatment at the End of Stage I with Begg Technique

作　　者：常少海[1] 叶剑涛[1] 刘东雄[1] 郑美华[1] 余艳崧[1] 

机构地区：[1]中山大学附属第二医院口腔科,广东广州510120

出　　处：《中山大学学报（医学科学版）》2003年第3期288-291,共4页Journal of Sun Yat-Sen University:Medical Sciences

基　　金：广东省科技计划项目基金(200012270)

摘　　要：【目的】评估Begg细丝弓矫治器对安氏Ⅱ类1分类错(牙合)矫治的功效及在第一期矫治结束时,上下切牙的突度,深覆(牙合)及磨牙关系的变化。【方法】选择48例拔除的安氏Ⅱ类1分类错(牙合)的病人按性别和年龄分4组,其中女性未成年组(12～15岁)12人,成年组(16～20岁)18人;男性未成年组(13～18岁)10人,成年组(19～27岁)8人,通过严格的Begg技术治疗,在第一期结束时,分析治疗前后的X线头颅侧位定位片,测定上下颌与颅底及颌间关系的变化、牙颌间的变化、颏点的变化。【结果】①上下颌切牙突度明显减少,上下切牙夹角增加约8°;②深覆(牙合)的打开是通过上下切牙的压入(约压入3.25～3.5mm),后牙槽及后牙的增高(1.1～1.25mm);下颌向下前的旋转(约1°～1. 2°),下颌角的增加(1.34°～1.41°)来进行的。③第一期结束时,下颌第一磨牙平均近中移动了1.78～1. 98 mm,上颌第一磨牙则相对稳定。④在未成年病例中,颏点增加了0.91-0.93mm,成人在治疗前后则处于相对稳定的位置。【结论】Begg细丝弓矫治器对安氏Ⅱ类1分类错(牙合)的矫治是高效的,对上下切牙突度、深覆(牙合)及磨牙关系的改变是明显的。[Objective] To evaluate the effect of Begg lingh wire appliance on Angle class Ⅱ division 1 malocclusion, and to observe the changes of incisor protrusion and deep overbite and relation of molar after treatment at the end of stage I. [Methods] Forty - eight Angle classⅡ division 1 malocclusion patients with extraction of were divied into four groups: the first group; 12 females 12 -15years, the second group: 18 females 16-20years, the third group: 10 males 13 - 18years, the fourth group: 8 males 19 - 27years. All were treated by means of Begg lingh wire appliance . At the end of stage I, analysis of radiographic Cephalometry was taken before and after treatment. The changes of relationship between maxilla and cranial base as well as jaw, and relationship between teeth and jaw, position of chin were detected. [Results] (1) Reduction was obvious in incisor protru-sion( U1-L1 angle was increased about 8? . (2) Openning deep overbite was achieved by methods of incisor intrusion (increased about 3. 25 - 3. 50mm), the increasing of posterior and posterior dentoalveo-lus( increased about 1. 10 - 1. 25 mm), down and front rotation of mandible (about 1° - 1. 2°), the increasing of mandibular angle ( about 1. 34° - 1. 41° ). (3) At the end of stage I, average mesial movement of first molar of the lower was about 1. 78 - 1. 98 mm and the first molar was fixed on the upper arch. (4) Chin was increased about 0. 91 - 0. 93 mm on unadult patients , and the position was fixed on adult patients. [Conclusion] Begg lingh wire appliance is high effective in the treatment of Angle class Ⅱ division 1 malocclusion. At the end of stage I, changes of incisor protrusion and deep overbite and relation of molar are evident.

关 键 词：BEGG技术 安氏Ⅱ类1分类 错HE X线头影测量 矫治器 咬合关系 

分 类 号：R783.5[医药卫生—口腔医学]