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分离模型是制作铸造冠、桥和烤瓷冠、桥修复中的一个操作步骤,也是确保修复体质量和精密程度的重要环节。这种方法需要特种导针作定位装置。由于购买困难。价格昂贵,基层医疗单位不易接受等因素,影响了修复体制作的质量。几年来我们利用废弃的一次性输液器的进气针制作了一种金属塑料联合导针,经临床应用体会到具有材料充足、造价低廉、使用方便、精确度高等优点,值得临床试用和推广。现将其制作方法和使用方法介绍如下。
Separation of the model is the production of casting crown, bridge and porcelain crown, bridge repair an operation step, but also to ensure the quality and precision restoration an important part of the process. This method requires special guide pins for positioning devices. Due to purchase difficulties. Expensive, unacceptable grass-roots medical units and other factors, affecting the quality of prosthesis. Over the past few years we use discarded disposable infusion needle produced a metal plastic joint guide needle, clinical experience to have sufficient material, low cost, easy to use, high accuracy, worth clinical trial and promotion. Now its production methods and methods of use are described below.