腭支抗种植体植入部位的应用解剖研究

发布时间：2018-01-13 06:04

本文关键词：腭支抗种植体植入部位的应用解剖研究　出处：《暨南大学》2008年硕士论文　论文类型：学位论文

【摘要】： 目的应用CBCT及牙科分析软件对腭支抗种植体植入部位的垂直骨厚度和骨密度进行定量研究,为临床上选择合适的植入部位提供理论参考依据。材料和方法成人正畸患者男性11例,女性23例,年龄18-35岁,平均24.2±3.5岁。采用美国i-CAT CBCT(Classic i-CAT(R),Imaging Sciences International,USA)对患者颅颌面进行扫描,将原始数据以DICOM格式导入牙科分析软件(EzImplant,韩国怡友巴泰克公司)中,建立三维CT数字图像。测量腭支抗种植体拟植入的20个部位的骨厚度;计算可植入率;测量可植入率高的10个部位的骨密度。采用SPSS13.0统计软件包,以骨厚度和骨密度为指标对可种植率高的10个部位行K-均数聚类分析及聚类分析结果的方差分析。结果(1)骨厚度最大的位置是切牙孔后3.0mm距腭中线6.0mm处,值为8.7±2.7mm;骨密度最大的位置是切牙孔后6.0mm的腭正中区,值为686.0±134.3HU。 (2)聚类分析结果示:切牙孔后3.0mm、6.0mm、9.0mm距腭中线3.0mm处,切牙孔后9.0mm距腭中线9.0mm处归为类1;切牙孔后3.0mm距腭中线6.0mm处,切牙孔后6.0mm距腭中线6.0mm、9.0mm处归为类2;切牙孔后6.0mm、9.0mm、12.0mm腭正中区归为类3;各类别间的骨厚度均数的差别(P＜0.05)、骨密度均数的差别(P＜0.05)均有统计学意义。 (3)经LSD法对3类2指标进行各类均数间的两两比较,可认为骨厚度类2＞类1、类3;骨密度类3＞类1＞类2。结论(1)切牙孔后3.0mm距腭中线6.0mm、切牙孔后6.0mm距腭中线6.0mm、9.0mm处为植入最安全的部位;分别有94.1%、91.2%和88.2%的个体适合植入3.0mm长的种植体。 (2)腭正中区为骨密度最高的部位,在此区域植入更有利于种植体的稳定。 (3)不能聚类到骨厚度和骨密度均最高的部位,种植设计时需结合患者具体条件,选择需要的部位进行种植。
[Abstract]:Objective to quantitatively study the vertical bone thickness and bone mineral density (BMD) of palatine Anchorage implant with CBCT and dental analysis software, so as to provide theoretical basis for clinical selection of suitable implant site. Materials and methods Adult orthodontic patients (11 males and 23 females aged 18-35 years) were enrolled in this study. The average age was 24.2 卤3.5 years old. Imaging Sciences International scan was performed on the craniomaxillofacial region of the patient. The raw data was imported into the dental analysis software Ez Implantin DICOM format. Three dimensional CT digital images were established to measure the bone thickness of 20 sites of palatal Anchorage implants. The implantable rate was calculated. Bone mineral density (BMD) of 10 sites with high implantable rate was measured. SPSS13.0 software package was used. Using bone thickness and bone mineral density as indicators, K-mean cluster analysis and variance analysis of cluster analysis results were performed on 10 sites with high implantability. Results (1) the position of maximum bone thickness was 3.0 mm behind the incisor and 6.0 mm from the midline of the palate, with a value of 8.7 卤2.7 mm. The maximum BMD was located in the median palatal area of 6.0mm posterior to incisor foramen, with a value of 686.0 卤134.3 Hu. (2) the results of cluster analysis showed that 3.0mm or 6.0mm behind incisor foramen was 3.0mm from the midline of palate, and 9.0mm from midline of palatine was classified as class 1 at 9.0mm after incisor foramen. 3.0mm after incisor and 6.0mm from midline of palate, 6.0mm after incisor and 6.0mm / 9.0mm from midline of palate were classified as class 2; The median palatal area of 6.0mm or 9.0mm or 12.0mm posterior incisor was classified as class 3; There were significant differences in bone thickness and bone mineral density (P < 0.05, P < 0.05). The results showed that bone thickness class 2 > class 1, class 3, bone mineral density class 3 > class 1 > class 2 were compared with each other by LSD method. Conclusion 1) 3.0mm behind incisor foramen and 6.0mm from midline of palate, 6.0mm behind incisor foramen and 9.0mm from midline of palate are the safest place to implant. 94. 1% and 88.2% of the individuals were suitable for 3. 0 mm long implants. 2) the median palatine area is the highest bone mineral density, and implantation in this area is more beneficial to the stability of implant. The implant design should be combined with the specific conditions of the patients to select the sites where the bone thickness and bone mineral density are the highest.
【学位授予单位】：暨南大学
【学位级别】：硕士
【学位授予年份】：2008
【分类号】：R783.6;R322

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