Robinson F B, Block B
J Prosthet Dent. 1981 Aug;46(2):215-6. doi: 10.1016/0022-3913(81)90311-5.
This simple, accurate technique of positioning dowel pins saves the time and effort of working with cumbersome bobby pins, paper clips, anesthetic needles, and sticky wax. No pins are pushed into the impression material that might cause distortion. The method (1) allows the dental laboratory technician to place the dowel pins free hand after the impression has been poured and (2) does away with many problems associated with prepositioning the dowel and stabilizing it with sticky wax before pouring the impression. With this method, there is nothing to vibrate loose, and there is excellent vision and access for teasing stone into all recesses of the impression with a spatula or brush. The heavy body and sticky characteristic of Mortite ensures that the bankers pins will not be dislodged during vibration of stone, and the dowel pins can be precisely located.
这种简单、精确的定位桩钉技术节省了使用笨重的发夹、回形针、麻醉针和粘性蜡所花费的时间和精力。没有桩钉被推入印模材料中，从而避免了可能导致的变形。该方法（1）使牙科技师在印模灌注后能够徒手放置桩钉，（2）消除了许多与在灌注印模前预先定位桩钉并用粘性蜡固定它相关的问题。使用这种方法，没有任何东西会振动松动，并且用刮勺或刷子将石膏填入印模的所有凹槽时，视野极佳且操作方便。Mortite的重质和粘性特性确保在石膏振动过程中定位销不会移位，并且桩钉能够精确定位。
