【摘要】：目的:建立上下頜骨、牙列、顳下頜關(guān)節(jié)、Advansync功能矯治器導(dǎo)下頜向前的有限元模型,探討在牙尖交錯(cuò)位、下頜姿勢(shì)位和最大開(kāi)口位狀態(tài)下,下頜骨向前移動(dòng)的療效及對(duì)下切牙唇傾和解剖合平面的影響。方法:對(duì)牙列排齊整平后的安氏II類(lèi)1分類(lèi)患者,采用CBCT機(jī)(Cone beam CT)進(jìn)行頭顱掃描,得到DICOM格式圖像數(shù)據(jù)。運(yùn)用Mimics17軟件讀取獲得的DICOM格式數(shù)據(jù),進(jìn)行上下頜骨和牙列模型的初步建立,導(dǎo)出stl格式保存,導(dǎo)入Geomagic Studio2014軟件進(jìn)行模型優(yōu)化,使用三維建模軟件Unigraphics NX8.5軟件進(jìn)行計(jì)算機(jī)圖像處理,將建立的三種頜位三維模型導(dǎo)入ANSYS Workbench15.0軟件中再次建立三種頜位的Advansync三維有限元模型并進(jìn)行分析。結(jié)果:獲得在三種頜位下包含MBT直絲弓矯治器的Advansync功能矯治器前導(dǎo)下頜的三維有限元模型。在Advansync功能矯治器作用下,從閉口至大張口的運(yùn)動(dòng)過(guò)程中下頜骨、下切牙有向前向下移動(dòng)的趨勢(shì);解剖合平面趨向順時(shí)針的旋轉(zhuǎn)。結(jié)論:研究結(jié)果提示Advansync功能矯治器具有促進(jìn)下頜骨整體向前向下改建的作用。
[Abstract]:Objective: to establish a finite element model of maxillary mandible, dentition and temporomandibular joint Advansync functional appliance to guide the mandible forward, and to explore the position of maxillary position and maxillary opening in the interlocking position of the cusp, mandible position and maximal opening position. Effect of mandibular forward movement and its effect on labial inclination and anatomic conjunctive plane of lower incisor. Methods: the patients with II class 1 were scanned by CBCT (Cone beam CT) to get the image data of DICOM format. Mimics17 software was used to read the data of DICOM format, to establish the upper and lower jaw and dentition models, to export the stl format to save, to import Geomagic Studio2014 software to optimize the model, and to use the 3D modeling software Unigraphics NX8.5 for computer image processing. The three kinds of 3D models of maxillary position were imported into ANSYS Workbench15.0 software and the Advansync 3D finite element model of three kinds of maxillary position was established and analyzed. Results: a three dimensional finite element model of Advansync functional orthodontic mandible with MBT straight wire appliance was obtained in three maxillary positions. Under the action of Advansync functional appliance, the lower incisor moved forward and downward during the movement from closing to opening, and the anatomic plane tended to rotate clockwise. Conclusion: the results suggest that Advansync functional appliance can promote the whole mandibular reconstruction.
【學(xué)位授予單位】：新疆醫(yī)科大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：R783.5

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