Zou Hui, Lai Ren-Fa, Kong Wei-Dong, Lin Wei, Chen Min-Ying
Department of Stomatology, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China.
Zhonghua Kou Qiang Yi Xue Za Zhi. 2009 Jul;44(7):404-8.
To investigate the vertical bone height and the bone density of the palate for implants placement using cone beam CT(CBCT) and to provide references to the safe and stable placement of palatal implants.
Three-dimensional reformatting images were reconstructed with the selected CBCT scanning data of 34 patients aged 18 to 35 yeras, by means of EZ implant software. The vertical bone height was measured at 20 interesting sites of palate. Bone density was measured at 10 sites that could support 3.0 mm long implants. The data of the vertical bone height and bone density were analyzed by K-means cluster analysis.
According to the cluster analysis results, the 10 sites were classified into 3 clusters. There were statistical differences among these three clusters in bone height and bone density (P < 0.05). The LSD result showed that the greatest mean value of vertical bone height was obtained in cluster 2, followed by cluster 1 and cluster 3; the highest bone density was founded in cluster 3, followed by cluster 1 and cluster 2.
Evaluation of the sites for palatal implant placement with cone beam CT would be helpful in safe and stable implantation.
利用锥形束CT（CBCT）研究腭部种植体植入区域的垂直骨高度和骨密度，为腭部种植体的安全稳定植入提供参考。
选取34例年龄在18至35岁患者的CBCT扫描数据，通过EZ种植软件重建三维重组图像。在腭部20个感兴趣部位测量垂直骨高度。在10个能够支持3.0 mm长种植体的部位测量骨密度。采用K均值聚类分析对垂直骨高度和骨密度数据进行分析。
根据聚类分析结果，10个部位分为3组。这三组在骨高度和骨密度方面存在统计学差异（P < 0.05）。LSD结果显示，垂直骨高度平均值最大的是第2组，其次是第1组和第3组；骨密度最高的是第3组，其次是第1组和第2组。
使用锥形束CT评估腭部种植体植入部位有助于实现安全稳定的种植。
