本文選題：微種植體 + 安全區(qū)　； 參考：《大連醫(yī)科大學(xué)》2014年碩士論文

【摘要】：目的：利用錐形束CT(CBCT)測(cè)量上頜雙側(cè)后牙區(qū)相鄰兩牙牙根之間的近遠(yuǎn)中距離，以及上頜竇最低點(diǎn)與水平面的垂直距離，結(jié)合正畸石膏模型中的上頜雙側(cè)后牙牙冠高度的測(cè)量值以及口內(nèi)上頜雙側(cè)后牙相應(yīng)附著齦寬度的測(cè)量值進(jìn)行綜合分析，最終確定上頜后牙區(qū)正畸微種植體支抗植入的安全區(qū)，以期為正畸醫(yī)師的臨床操作提供參考。 方法：選擇2012年1月至2012年12月期間于沈陽(yáng)軍區(qū)總醫(yī)院口腔門診正畸診室就診符合研究條件的正畸前患者病例資料21例，其中男性患者病歷資料8例，女性患者病例資料13例，年齡范圍為15-30歲，平均年齡為（19.5±4.6）歲。使用德國(guó)卡瓦公司生產(chǎn)的由掃描儀和計(jì)算機(jī)工作站組成KaVo3D exam Vision成像系統(tǒng)來(lái)獲取患者頭頸部的錐束容積斷層圖像并進(jìn)行數(shù)據(jù)重建，重建結(jié)果以DICOM3.0的格式輸出并進(jìn)行保存�？谇活M面部錐形束CT重建后的數(shù)據(jù)使用InvivoDental5.0三維頭影測(cè)量分析軟件以三維影像的形式呈現(xiàn)，在Invivo Dental5.0軟件的Scetion窗口中確定測(cè)量的水平面、矢狀面以及冠狀面，然后使用軟件自帶的測(cè)量功能分別測(cè)量上頜左右兩側(cè)后牙區(qū)相鄰兩牙牙根在距水平面6、8、10、12、14、16mm處的近遠(yuǎn)距離,以及上頜竇最低點(diǎn)與水平面的垂直距離。同時(shí)，在患者口外使用游標(biāo)卡尺測(cè)量患者正畸前上頜牙列石膏模型中的上頜后牙牙冠高度；在患者口內(nèi)使用牙周探針以牙體長(zhǎng)軸為標(biāo)準(zhǔn)，分別測(cè)量游離齦的寬度以及齦緣至膜齦聯(lián)合的寬度，并最終得出患者附著齦的寬度。綜合分析測(cè)量所得的數(shù)據(jù)及上述各解剖結(jié)構(gòu)之間的關(guān)系，最終得出上頜后牙區(qū)正畸微種植體支抗植入的安全區(qū)。 結(jié)果：1.上頜后牙區(qū)相鄰兩牙牙根近遠(yuǎn)中距離的測(cè)量結(jié)果顯示上頜第二前磨牙和第一磨牙近中頰根之間的近遠(yuǎn)中距離最大，上頜第一前磨牙和上頜第二前磨牙牙根之間的近遠(yuǎn)中距離次之，而上頜第一磨牙遠(yuǎn)中頰根與上頜第二磨牙近中頰根之間的近遠(yuǎn)中距離變異較大。2.上頜竇底與水平面的距離從前磨牙至磨牙逐漸降低，在上頜第二磨牙區(qū)上頜竇底的位置與水平面距離最低。3.上頜后牙牙冠高度測(cè)量結(jié)果顯示由上頜第一前磨牙至上頜第二磨牙牙冠高度依次減小，上頜第一前磨牙的牙冠高度最大。4.最終得出的上頜后牙區(qū)附著齦寬度結(jié)果顯示由附著齦寬度由上頜第一前磨牙至上頜第二磨牙依次增大，上頜第二磨牙區(qū)的附著齦寬度最大。 結(jié)論：上頜后牙區(qū)正畸微種植體支抗植入的安全區(qū)位于上頜第二前磨牙與上頜第一磨牙之間，距上頜第二前磨牙頰尖與上頜第一磨牙近中頰尖連線所確定水平面的垂直高度為10-11mm，過(guò)上頜第二前磨牙與上頜第一磨牙鄰接點(diǎn)的切線偏遠(yuǎn)中并且正畸微種植體支抗植入時(shí)與水平面所成的角度不大于59°。
[Abstract]:Objective: to measure the proximal and distal distance between the roots of the two adjacent teeth and the vertical distance between the lowest point of maxillary sinus and the horizontal plane in the maxillary bilateral posterior region by CT-CBCT.Combined with the measurement value of crown height of maxillary bilateral posterior teeth and the width of corresponding attachment gingival of maxillary bilateral posterior teeth in orthodontic gypsum model, the safety zone of orthodontic micro-implant Anchorage in maxillary posterior teeth was determined.In order to provide reference for orthodontists' clinical operation.Methods: from January 2012 to December 2012, 21 cases of pre-orthodontic patients, including 8 male patients and 13 female patients, were selected from orthodontic clinic of Shenyang military region General Hospital.The age range was 15 to 30 years old, the average age was 19.5 鹵4.6 years old.The KaVo3D exam Vision imaging system, which is made up of scanner and computer workstation, is used to obtain the volume tomography image of the head and neck of the patient and reconstruct the data. The reconstruction result is output and saved in the format of DICOM3.0.The data of conical beam CT reconstruction in oral and maxillofacial region were presented by InvivoDental5.0 three-dimensional cephalometric analysis software. The horizontal plane, sagittal plane and coronal plane were determined in the Scetion window of Invivo Dental5.0.Then the distance between the two adjacent roots of the maxillary left and right posterior teeth and the vertical distance between the lowest point of the maxillary sinus and the horizontal plane was measured by using the software's own measurement function at a distance of 6101012121416mm from the horizontal plane.At the same time, Vernier calipers were used to measure the crown height of maxillary posterior teeth in the plaster model of orthodontic maxillary dentition.The width of free gingiva and the width of gingival ligament to membranous gingival union were measured, and the width of adhesive gingiva was obtained.Finally, the safety zone of orthodontic micro-implant Anchorage in maxillary posterior teeth was obtained by synthetically analyzing the measured data and the relationship between the above anatomical structures.The result is 1: 1.The results of the measurement of the proximal distance between the two adjacent teeth in the maxillary posterior region showed that the proximal distance between the maxillary second premolar and the first molar proximal buccal root was the largest.The distance between the maxillary sinus floor and the horizontal surface gradually decreased from the anterior molar to the molar, and the distance between the position of the maxillary sinus floor and the horizontal plane was the lowest at the maxillary second molar region.The crown height of maxillary posterior teeth decreased from maxillary first premolar to maxillary second molar, and the crown height of maxillary first premolar was the largest.The results showed that the width of attachment gingival increased from maxillary first premolar to maxillary second molar, and the maxillary second molar was the largest.Conclusion: the safety zone of orthodontic microimplant Anchorage in the maxillary posterior region lies between the maxillary second premolar and the maxillary first molar.The vertical height of the horizontal plane from the buccal tip of the maxillary second premolar to the proximal middle buccal tip of the maxillary first molar is 10-11mm, the vertical height of the horizontal plane is 10-11mm, and the orthodontic implant Anchorage is located in the remote tangent of the adjacent point between the maxillary second premolar and the maxillary first molar.The angle between the implant and the horizontal plane was not greater than 59 擄.
【學(xué)位授予單位】：大連醫(yī)科大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：R783.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王婷;厲松;;Cone-beam CT技術(shù)及其在口腔正畸學(xué)中的應(yīng)用進(jìn)展[J];北京口腔醫(yī)學(xué);2011年02期

2 侯亞男;常新;;微種植體支抗在口腔正畸中的應(yīng)用[J];大連醫(yī)科大學(xué)學(xué)報(bào);2011年03期

3 魏惺;趙立星;許楨睿;唐娜;趙志河;;關(guān)于中國(guó)人正畸支抗用微種植釘牙槽骨植入安全區(qū)的研究[J];國(guó)際口腔醫(yī)學(xué)雜志;2010年02期

4 李建華;封小霞;楊璞;;骨支抗前牽引的研究進(jìn)展[J];國(guó)際口腔醫(yī)學(xué)雜志;2013年03期

5 熊卉;姚鋒;鄧益輝;楊艷;陳建鋼;;微螺釘種植體支抗在成人牙列缺損正畸中的應(yīng)用[J];武漢大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2006年06期

6 朱勝吉;周彥恒;;成年患者上頜后牙區(qū)解剖特點(diǎn)的CT研究[J];口腔正畸學(xué);2008年02期

7 武冠英;徐寶華;;自攻型微螺釘種植體內(nèi)收上前牙的臨床研究[J];中國(guó)美容醫(yī)學(xué);2010年08期

8 劉怡珍;劉新慶;;影響微種植體支抗穩(wěn)定性的相關(guān)因素分析[J];中國(guó)美容醫(yī)學(xué);2011年05期

9 黃健;馬巍;;微種植釘支抗壓低伸長(zhǎng)磨牙在牙列缺損修復(fù)中的臨床應(yīng)用[J];現(xiàn)代生物醫(yī)學(xué)進(jìn)展;2010年12期

10 王彬;談龍;施潔s，

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