Burawi G, Houston F, Byrne D, Claffey N
Department of Restorative Dentistry and Periodontology, School of Dental Science, Trinity College, Dublin, Ireland.
J Prosthet Dent. 1997 Jan;77(1):68-75. doi: 10.1016/s0022-3913(97)70209-9.
The precise transfer of intraoral relationships of implants to laboratory working models is central to the success of implant prostheses.
In this study a stone master model incorporating five implants (Bone-Lock) was used to compare the dimensional accuracy of a splinted impression technique with an unsplinted impression technique.
A three-factor analysis of variance was used to examine the effect of technique, relative position of the implant on the cast, and plane of measurement.
All three factors had a significant effect on dimensional accuracy.
The splinted technique exhibited more deviation from the master model than the unsplinted technique did. This was primarily associated with rotational discrepancies around the long axes of the implants for the splinted technique.
将种植体的口内关系精确转移至实验室工作模型对于种植修复体的成功至关重要。
在本研究中，使用包含五颗种植体（骨锁式）的石膏主模型来比较夹板式印模技术与非夹板式印模技术的尺寸精度。
采用三因素方差分析来检验技术、种植体在模型上的相对位置以及测量平面的影响。
所有三个因素对尺寸精度均有显著影响。
夹板式技术相较于非夹板式技术，与主模型的偏差更大。这主要与夹板式技术中种植体长轴周围的旋转差异有关。
