数字化X线片在种植牙生物学宽度测量中的应用

目的：应用数字化X片机测量患者种植体BW及观察IAI相对于牙槽嵴顶的位置对种植体骨吸收的影响。方法：通过植入不同深度的种植体，使用数字化牙片机及图像分析软件，计算出种植体BW。结果：IAI在牙槽嵴顶上2mm者，未见种植体骨吸收；IAI平齐牙槽嵴顶者和在牙槽嵴顶下2mm者均有骨吸收；种植体BW恒定不变，约3mm左右。结论：使用数字化牙片机及软件测量种植体BW，简单、易行、准确性高，无伤害性。

Digital X--ray Applications in Dental Implant Biological Width Measurement

Objective： To observe the IAI relative to the location of the alveolar ridge crest on the influence of the implant bone resorption using digital X--ray machine measurement in patients with implant BW. Methods： By im- planted implants of different depth, the use of digital tooth machine and image analysis software, we calculate the implant BW. Results： When IAI is 2 mm on the top of the alveolar ridge, there was not bone resorption; when IAI level is the same as alveolar ridge crest or 2 mm under the alveolar ridge crest, there was bone resorption. Implant BW was constant, about 3 mm or so. Conclusion： Digital tooth machine and the software can be used to measure the implant BW.