微種植體支抗遠(yuǎn)移下頜磨牙的生物力學(xué)研究
[Abstract]:Aim: to analyze the displacement and stress distribution of microimplants and teeth in the treatment of distal mandibular molars by means of finite element method. Methods: spiral CT was used to scan the craniomaxillary region of the subjects with intact dentition, normal tooth shape and size. Four groups of 3-D finite element models were established with Mimics,Ansys Workbench software. A 3-D finite element model of a bracket, arch wire, in which the nickel titanium push spring is placed on one side of the first, bicuspid. 2: in 1, the first and second molars are implanted with microimplants between the roots, The microimplants were tightly ligated with the first molar. 3: the microimplants were tightly ligated with the second premolars, the rest were the same as 2.4: the bilateral mandibular oblique was parallel to the root of the second molar. A nickel titanium pull spring was inserted between the microimplant and the traction hook (mandibular lateral incisor and canine teeth). For 1 and 2, 150 g of push spring was applied to push the second molar of mandible, 3 to 250 g of push spring, the first and second molar of mandible to move far, and 4 to apply force of 300 g to the whole mandibular dentition. In the simulation group, the second molar and the microimplant support were applied to the distal mandibular second molar, all mandibular molars and the whole lower dentition, respectively, and the corresponding force values were loaded and calculated for the four groups of models. Results: in model 2, the first molar tilted more than 1, mainly around the microimplant, while the second molar was tilted in the distal direction with the torsion of the tongue, and the initial displacement of the remaining teeth was smaller than that of model 1. All molars in model 3 were distal tilted, while the first molars in model 4 were distally shifted and the second molars were tilted in the distal direction less than that in model 3. Conclusion: indirect implant Anchorage can enhance the Anchorage effect, but direct Anchorage can effectively avoid the labial inclination of anterior teeth, and the distal movement of group teeth is more favorable to the whole movement of molars than to the distant movement of each tooth.
【作者單位】: 安徽醫(yī)科大學(xué);空軍總醫(yī)院口腔科;
【分類號】:R783.5
【參考文獻(xiàn)】
中國期刊全文數(shù)據(jù)庫 前3條
1 高檸,秦葵慶,,姜同學(xué),陳爽,王道富;鎳鈦絲彈簧在口腔正畸臨床的應(yīng)用[J];醫(yī)用生物力學(xué);1995年02期
2 吳麗萍,李洪,劉磊,梁儻;上頜尖牙遠(yuǎn)中移動的矯治力分析[J];中華口腔醫(yī)學(xué)雜志;1995年06期
3 左凱;柯杰;趙桂芝;武倩倩;許諾;賈成亮;范星星;;滑動法關(guān)閉下頜第一磨牙拔牙間隙三維有限元模型的建立及驗(yàn)證[J];牙體牙髓牙周病學(xué)雜志;2013年05期
【共引文獻(xiàn)】
中國期刊全文數(shù)據(jù)庫 前10條
1 楊東紅;葉之慧;王石;付爽;吳立鵬;;正畸牙移動過程中血小板源性生長因子-BB在牙周組織中的表達(dá)[J];廣東牙病防治;2014年02期
2 Jie Yao;Guan-Ming Kuang;Duo Wai-Chi Wong;Wen-Xin Niu;Ming Zhang;Yu-Bo Fan;;Influence of screw length and diameter on tibial strain energy density distribution after anterior cruciate ligament reconstruction[J];Acta Mechanica Sinica;2014年02期
3 李志華,陳揚(yáng)熙,劉劍,吳建勇,朱玉芬;上頜第一磨牙遠(yuǎn)中移動時(shí)牙周應(yīng)力分布的三維有限元分析[J];華西口腔醫(yī)學(xué)雜志;2003年04期
4 吳麗萍,胡敏,林曦,關(guān)麗媛,劉磊,李洪;正畸過程中支抗牙承載能力的光彈性研究[J];吉林醫(yī)學(xué);1997年03期
5 李志華;有限元法在牙齒及其支持組織應(yīng)力分布研究中的應(yīng)用[J];實(shí)用臨床醫(yī)學(xué);2001年02期
6 莫水學(xué),李志華,葉平,劉劍;上頜第一磨牙牙槽骨應(yīng)力分布的有限元分析[J];實(shí)用臨床醫(yī)學(xué);2003年02期
7 楊東紅;馮卉姍;趙剛;侯玉澤;李曉光;葉之慧;;不同牙周組織狀態(tài)下正畸牙移動對牙槽骨影響的實(shí)驗(yàn)研究[J];黑龍江醫(yī)藥科學(xué);2013年06期
8 陳磊;徐建光;謝琳;張君;;搖椅形唇弓打開咬合前后上頜牙的三維變化[J];上?谇会t(yī)學(xué);2009年02期
9 錢英莉,樊瑜波,蔣文濤;正畸力作用下牙齒移動的生物力學(xué)[J];醫(yī)用生物力學(xué);2003年03期
10 張磊;樊瑜波;;轉(zhuǎn)矩作用對微植體矯治力系內(nèi)收上前牙影響的三維有限元研究[J];醫(yī)用生物力學(xué);2007年02期
中國碩士學(xué)位論文全文數(shù)據(jù)庫 前10條
1 景潞華;不同植入角度及不同加載力角度對微植體穩(wěn)定性影響的研究[D];山西醫(yī)科大學(xué);2010年
2 郭萍;利用微種植釘支抗滑動法近中移動下頜第二磨牙關(guān)閉第一磨牙缺失間隙的療效分析[D];浙江大學(xué);2011年
3 李志華;上頜第一磨牙遠(yuǎn)中移動時(shí)牙周應(yīng)力分布的三維有限元分析[D];江西醫(yī)學(xué)院;2000年
4 白曉亮;下頜第一恒磨牙舌側(cè)矯治的生物力學(xué)分析[D];中國醫(yī)科大學(xué);2005年
5 周倩;上中切牙牙周支持組織高度降低的三維有限元研究[D];中國醫(yī)科大學(xué);2005年
6 高文華;上頜骨和牙齒在頜間牽引力作用下受力的三維有限元分析[D];山西醫(yī)科大學(xué);2006年
7 王穎;下頜牙列精確三維有限元模型建模及正畸過程分析[D];哈爾濱工業(yè)大學(xué);2007年
8 黃純;不同角度磨牙后傾曲近中移動下頜第二磨牙的有限元分析[D];暨南大學(xué);2009年
9 金福;鎳鈦拉簧和彈力鏈力值衰減的體外實(shí)驗(yàn)研究[D];南昌大學(xué);2009年
10 張清華;不同牙槽骨高度的上頜尖牙生物力學(xué)效應(yīng)分析[D];山西醫(yī)科大學(xué);2010年
【二級參考文獻(xiàn)】
中國期刊全文數(shù)據(jù)庫 前7條
1 周書敏,何明元,張延宏,楊成壽,闞常珍;牙根尖區(qū)應(yīng)力分布的三維有限元計(jì)算[J];北京醫(yī)科大學(xué)學(xué)報(bào);1988年01期
2 米方林;周燕玲;黃志澎;張楊;;支抗力作用下上頜第一磨牙牙周膜應(yīng)力的三維有限元分析[J];國際口腔醫(yī)學(xué)雜志;2008年01期
3 王海燕,邵s
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