安氏Ⅱ类Ⅰ分类错非减数矫治对唇部软组织的影响  

Soft tissue changes of upper lip in patients with Class Ⅱ Division Ⅰmalocclusion with nonextraction treatment

作　　者：许诺[1] 韩爽[1] 葛宇[1] 蒋勇[2] 

机构地区：[1]安徽省合肥市口腔医院,安徽合肥230001 [2]安徽医科大学口腔医学院,安徽合肥230032

出　　处：《安徽医药》2014年第9期1668-1670,共3页Anhui Medical and Pharmaceutical Journal

基　　金：中国博士后科学基金面上资助(No 2012M512141)

摘　　要：目的探讨安氏Ⅱ类Ⅰ分类错青少年不拔牙矫治对唇部软组织的影响。方法对30例安氏Ⅱ类Ⅰ分类错病例采用上颌快速扩弓,3个月后运用直丝弓矫治技术完成非减数矫治。对矫治前后的X线头颅侧位片唇部软组织指标进行测量统计分析。结果 (1)在唇部各点相对于X、Y轴的线距上,治疗后表现为垂直方向上明显增长(P<0.05)。(2)在软组织角度与线距的测量上,治疗后软组织面凸角与反映唇部突度的鼻唇角、上唇倾角和上下唇突度的变化明显(P﹤0.05),反映了上唇前突和面部侧貌协调性的改善。结论运用快速扩弓扩大牙弓宽度是不拔牙矫治安氏Ⅱ类Ⅰ分类的有效方法。Objective To compare change of the upper lip soft tissue in patients with Class Ⅱ Division Ⅰ malocclusion after nonextraction treatment .Methods Thirty patients with Class Ⅱ Division Ⅰ malocclusion were treated by rapid maxillary expansion and straight wire appliance .The lateral cephalometric radiographs taken before and after treatment were traced and measured .Twelve typical values of soft tissue were measured and statistical analysis was made by SPSS 13.0 software.Results In the horizontal and vertical lines,the vertical changes of lip were more apparent after the treatment （P〈0.05）.In the soft tissue measurements,the values of Ns-Sn-Pos angles,NLA and A′-UL-FH increased after the treatment and all of the patients had a significant decrease in ULP （P〈0.05）, indicating the coordination of the facial profile improvement .Conclusions Rapid maxillary expansion is one of the most effective non-extraction treatments for the Class ⅡDivision I malocclusion .

关 键 词：快速扩弓 唇 头影测量分析 安氏Ⅱ类 

分 类 号：R783.5[医药卫生—口腔医学]