成人腭部微种植体植入区域骨皮质密度的锥形束CT测量分析

发布时间：2018-05-26 16:01

本文选题：腭 + 骨密度　；参考：《重庆医科大学学报》2015年08期

【摘要】：目的:利用锥形束CT(cone beam computed tomography,CBCT)测量腭部骨皮质密度,分析腭部骨皮质密度的分布规律。方法:选取107例20~40岁成人(男51例、女56例)的CBCT影像数据,测量腭部28个点位的骨皮质密度,以亨斯菲尔德单位(Hounsfield units,HU)表示,重复测量方差分析比较不同部位间骨密度差异,t检验比较骨密度的性别差异。结果:腭部各测量点位中骨皮质密度最大值为(976.24±138.66)HU,最小值为(460.45±183.33)HU。除Y0X0、Y8X0、Y8X6、Y12X6、Y20X6、Y20X9、Y24X6和Y24X9外,其余20个测量点位的骨皮质密度值性别差异有统计学意义(P0.05)。腭部骨皮质密度有由前向后递减的趋势(P=0.000)。腭前部中缝旁3 mm区域的骨皮质密度高于腭前部中缝区(P0.05)。结论:经CBCT获取了成人腭部骨皮质密度的分布规律,为腭部微种植体植入部位的选择提供了参考。
[Abstract]:Aim: to measure the density of crest cortex of palate by using conical bundle CT(cone beam computed tomographyCT-CTs, and to analyze the distribution of density of bone cortex of palate. Methods: CBCT images of 107 adults aged 20 to 40 (51 males and 56 females) were selected to measure the bone cortex density at 28 sites in the palate, according to Hounsfield unitsHUU, a Hensfield unit. Repeated measurement analysis of variance (ANOVA) was used to compare the difference of bone mineral density (BMD) between different sites. Results: the maximum value of bone cortex density was 976.24 卤138.66 HUU and the minimum value was 460.45 卤183.33 Hu. With the exception of Y0X0, Y8X0, Y8X6, Y12X6, Y20X6, Y20X9, Y24X6 and Y24X9, there were significant differences in the density of bone cortex between the other 20 measuring points (P 0.05). The density of crest of palate decreased from forward to backward. The density of bone cortex in 3 mm area of anterior palatal suture was higher than that in anterior palatine suture area (P0.05). Conclusion: the distribution of bone cortical density in adult palate was obtained by CBCT, which provides a reference for the selection of implant sites.
【作者单位】：重庆医科大学附属口腔医院正畸科、口腔疾病与生物医学重庆市重点实验室、重庆市高校市级口腔生物医学工程重点实验室;
【基金】：重庆市科学技术委员会资助项目(编号:cstc2013jcyj A10010)
【分类号】：R783.6

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