多次重复使用对由不同材料(不锈钢(SS),铝(Al),钛(Ti),和氧化锆(Zr)通过利用两种模具材料在不同的持续时间是感兴趣的牙医。使用为植入物类似物的内部螺纹创建的印模测量螺纹之间的间距。或通过立体显微镜在0时设置为x50的副本,3rd,6th,9th,和第12个间隔。观察到,随着在所有植入物类似物中以增加的时间间隔增加的重复使用,线1-2之间的距离减小。然而,在钛植入物类似物中,线之间距离的减小较低,其次是氧化锆植入物类似物,并且在铝植入物类似物中,减小最大,其次是SS植入物类似物。当评估线3-4之间的距离时,观察到与所有植入物类似物中的线1-2相比,线3-4之间的距离减小。类似地,与螺纹1-2和螺纹3-4相比,螺纹5-6之间的距离减小较小。随着在所有植入物类似物中以增加的时间间隔增加的重复使用,线1-2之间的距离减小。然而,在钛植入物类似物中,丝线之间距离的减少程度最低,其次是锆植入物类似物.
The impact of multiple reuse on the alterations in internal threads of four different implant analogous composed of different materials (stainless steel (SS),
aluminum (Al), titanium (Ti), and zirconia (Zr) by utilizing two die materials at different time durations is of interest to dentists. The spacing between the threads was measured using the impressions created for the interior threads of implant analogs, or replicas by stereomicroscope set to x50 at 0th, 3rd, 6th, 9th, and 12th interval. It was observed that there was decrease in distance between threads 1-2 as the increasing reuse at increasing time intervals in all implants analogs. However the decrease in distance between threads was low in Titanium implants analogs followed by Zircona implant analogs and the decrease was maximum in
aluminum implants analogs followed by SS implant analogs. When there was evaluation of distance between threads 3-4 then it was observed that there was reduced decrease in distance between threads 3-4 as compared to threads 1-2 n all implant analogs. Similarly the reduction in distance between threads 5-6 was lesser as compared to threads 1-2 and threads 3-4. There was decrease in distance between threads 1-2 as the increasing reuse at increasing time intervals in all implants analogs. However, the reduction in distance between threads was lowest in Titanium implants analogs followed by Zircona implant analogs.