推磨牙遠(yuǎn)中移動(dòng)技術(shù)對(duì)安氏II類(lèi)錯(cuò)合畸形矯治的病例分析.pdf

1、新疆醫(yī)科大學(xué)碩士學(xué)位論文推磨牙遠(yuǎn)中移動(dòng)技術(shù)對(duì)安氏II類(lèi)錯(cuò)合畸形矯治的病例分析姓名：焦海霞申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：口腔臨床醫(yī)學(xué)指導(dǎo)教師：劉海霞2011-04新疆醫(yī)科大學(xué)碩士學(xué)位論文 2Effect analysis of maxillary molar distalization on class II malocclusion Postgraduate: Jiao Haixia Supervisor: Ass P

2、rofessor Liu Haixia Abstract Objective: To investigate clinical effect with maxillary molar distalization on class II malocclusion and analyse appliance characteristic, usage and anchorage control.

3、Methods: Six patients with class II malocclusion were chosen from June 2009 to March 2011 in the stomatology department of the Second Hospital affiliated to XinJiang Medical University, and the

4、 method of maxillary molar distalization were adopted, of which three cases were treated with headgear and removable appliance, two with m an- made molar distalization appliances and the second pr

5、emolar Nance arch, one with pendulum appliance. After treatment analyse molar distalization effect, the plaster cast change and X cephalometric. Results: Only one patient failed in molar distaliza

6、tion and was changed into extraction and fixed appliance in six cases. The rest cases achieved the goal of molar distalization, and molar relationships were corrected as neutral ones. X cephal

7、ometric showed no obvious jaw position changes, and the angles between maxillary molars and the palatal plane, and between maxillary molars and the SN plane decreased, indicating that the molars

8、 were tilt in the process of the maxillary molar distalization. Conclusion: Three kind of distalization appliances are effective on class II malocclusion correct, but it is important to grasp