本文選題：上頜前牙區(qū) + 微種植體支抗　； 參考：《暨南大學(xué)》2015年碩士論文

【摘要】：目的:應(yīng)用CBCT研究上頜前牙區(qū)微種植體支抗的植入位點(diǎn),為臨床醫(yī)生選擇相應(yīng)微種植體支抗的直徑和長(zhǎng)度,確定植入的角度及最適宜的植入位點(diǎn)提供參考。方法:選取暨南大學(xué)附屬惠州口腔醫(yī)院進(jìn)行CBCT掃描的患者30名,男女各15名,年齡為18~30歲,漢族。掃描完成后數(shù)據(jù)應(yīng)用Ez3D2009 version 1.0圖像分析軟件(VATECH,Korea)進(jìn)行分析,在重建的三維圖像中選取所需要的截面,分別測(cè)量上頜1-1間、1-2間、2-3間距上頜牙槽嵴頂2 mm、4 mm、6 mm、8 mm處近遠(yuǎn)中向根間最小距離、唇腭向牙槽骨厚度、唇腭向牙槽骨密度及唇側(cè)骨皮質(zhì)厚度。用SPSS 13.0統(tǒng)計(jì)軟件對(duì)測(cè)量結(jié)果進(jìn)行分析處理。結(jié)果:1、前后兩次各測(cè)量值之間差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。2、男、女性各測(cè)量值之間差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。3、左右兩側(cè)各測(cè)量值之間差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。4、在上頜前牙區(qū),具有近遠(yuǎn)中向最小根間距離最大的部位是1-1間距牙槽嵴頂8 mm處(3.54±0.40 mm),最小的部位是1-2間距牙槽嵴頂2 mm處(1.75±0.32 mm)。具有唇腭向牙槽骨厚度最大的部位是1-2間距牙槽嵴頂8 mm處(7.62±0.14 mm),最小的部位是1-1間距牙槽嵴頂2 mm處(5.18±0.17 mm)。具有唇腭向牙槽骨密度最大的部位是1-1間距牙槽嵴頂2 mm處(845.57±96.10 HU),最小的部位是2-3間距牙槽嵴頂8 mm處(601.71±99.38 HU)。具有唇側(cè)骨皮質(zhì)厚度最大的部位是2-3間距牙槽嵴頂6 mm處(1.23±0.21 mm),最小的部位是1-1之間距牙槽嵴頂2 mm處(0.81±0.24 mm)。結(jié)論:1、上頜前牙區(qū)近遠(yuǎn)中向根間最小距離及唇腭向牙槽骨厚度在靠近根尖區(qū)時(shí)總體呈現(xiàn)增大趨勢(shì);唇腭向牙槽骨密度隨著離牙槽嵴頂越遠(yuǎn),呈減小趨勢(shì);除了2-3根間在距離牙槽嵴頂6 mm、8 mm位點(diǎn)唇側(cè)骨皮質(zhì)厚度呈減小趨勢(shì),其余牙根隨著離牙槽嵴頂越遠(yuǎn),唇側(cè)骨皮質(zhì)厚度不斷增大。2、微種植體支抗植入若從安全性角度考慮,1-2之間根間隙為最窄處,若要在該處植入種植體,應(yīng)盡量選擇小直徑種植體(≤1.2 mm)。3、1-1之間根間隙最大,唇腭向牙槽骨密度最大,但骨皮質(zhì)厚度最小;2-3之間唇腭向牙槽骨密度最小,唇側(cè)骨皮質(zhì)厚度最大,且在距牙槽嵴頂6 mm水平處以下唇腭向牙槽骨厚度最大,因此本研究提示1-1之間以及2-3之間是最佳植入?yún)^(qū)域。
[Abstract]:Objective: to study the implant site of microimplant Anchorage in maxillary anterior teeth by CBCT, and to provide a reference for clinicians to select the diameter and length of microimplant Anchorage, to determine the angle of implantation and the most suitable implant site. Methods: thirty patients, 15 males and 15 males, aged 1830 years, were selected from Huizhou Stomatological Hospital affiliated to Jinan University for CBCT scanning. After scanning, the data were analyzed with Ez3D2009 version 1.0 image analysis software, and the required sections were selected in the reconstructed 3D images. The distance between maxillary 1-1 and 1-2 alveolar crest was measured. The distance between the crest of maxillary alveolar crest 2 mm ~ 4 mm ~ 6 mm ~ 8 mm, the thickness of labiopalatine alveolar bone, the bone mineral density of labiopalatine alveolar bone and the thickness of labial cortical bone were measured. The measurement results were analyzed and processed by SPSS 13.0 statistical software. Results there was no significant difference between the two measurements before and after 1: 1. There was no significant difference between the measured values of male and female. There was no significant difference between the measured values on the left and right sides of the maxillary anterior teeth, and there was no significant difference between the measured values on the left and right sides of the maxillary anterior teeth. The largest distance between roots was found to be 3.54 鹵0.40 mm at 8mm of alveolar crest and 1.75 鹵0.32 mm between 2 mm and 2 mm of alveolar crest. The largest thickness of labiopalatine alveolar bone was 7.62 鹵0.14 mm at 8mm top of alveolar crest and 5.18 鹵0.17 mm at 2 mm between 1-1 interval of alveolar crest. The maximum BMD of labiopalatine alveolar crest was 8455.57 鹵96.10 HUU at the top of alveolar crest with 1-1 interval, and the smallest position was 601.71 鹵99.38 HUU at 8mm between the top of alveolar crest and 2-3 mm apart from the crest of alveolar crest. The site with the largest thickness of the labial cortex was 1.23 鹵0.21 mm at 6 mm of alveolar crest and 0.81 鹵0.24 mm between 1-1 and 2 mm of alveolar crest. Conclusion the minimum distance between the maxillary anterior teeth and the thickness of the labiopalatine alveolar bone increases with the distance between the maxillary anterior teeth and the apical region, and the bone mineral density of the labiopalatine alveolar region decreases with the distance from the alveolar crest to the top of the alveolar crest. Except that the thickness of the labial cortex between 2-3 roots was decreased at a distance of 6 mm to 8 mm from the top of the alveolar crest, the other roots were further away from the top of the alveolar crest. The thickness of the labial cortex is increasing. If the root gap between 1 and 2 is the narrowest place in terms of safety, small diameter implants (鈮，

本文編號(hào)：1923083