Raghu K M, Gururaju C R, Sundaresh K J, Mallikarjuna Rachappa
Department of Oral & Maxillofacial Surgery, Sharavathi Dental College and Hospital, Shivamogga, Karnataka, India.
BMJ Case Rep. 2013 Aug 23;2013:bcr2013010385. doi: 10.1136/bcr-2013-010385.
The fabrication of finger prosthesis is as much an art as it is science. The ideally constructed prosthesis must duplicate the missing structures so precisely that patients can appear in public without fear of attracting unwanted attraction. A 65-years-old patient reported with loss of his right index finger up to the second phalanx and wanted to get it replaced. An impression of the amputated finger and donor were made. A wax pattern of the prosthesis was fabricated using the donor impression; a trial was performed and flasked. Medical grade silicone was intrinsically stained to match the skin tone, following which it was packed, processed and finished. This clinical report describes a method of attaining retention by selective scoring of the master cast of partially amputated finger to enhance the vacuum effect at par with the proportional distribution of the positive forces on the tissues exerted by the prosthesis.
手指假体的制造既是一门科学,也是一门艺术。理想构造的假体必须精确复制缺失的结构,以便患者能够在公共场合露面而不必担心引起不必要的注意。一名65岁患者因右食指缺失至第二指骨前来就诊,希望进行手指置换。制作了截肢手指和供体的印模。利用供体印模制作了假体的蜡型;进行了试戴并装盒。将医用级硅胶进行本色染色以匹配肤色,然后进行填充、加工和修整。本临床报告描述了一种通过对部分截肢手指的母模进行选择性刻痕来实现固位的方法,以增强真空效果,使其与假体对组织施加的正向力的比例分布相当。