Department of Prosthodontics, Government Dental College and Hospital, Nagpur, Maharashtra, India.
J Adv Prosthodont. 2012 Nov;4(4):248-53. doi: 10.4047/jap.2012.4.4.248. Epub 2012 Nov 29.
Maxillary obturator prosthesis is the most frequent treatment option for management of partial or total maxillectomy. Heavy weight of the obturators is often a dislocating factor. Hollowing the prosthesis to reduce its weight is the well established fact. The alternate technique to hollow-out the prosthesis has been described in this article which is a variation of previously described processing techniques. A pre-shaped wax-bolus was incorporated inside the flasks during packing of the heat-polymerized acrylic resin to automatically create the hollow space. The processing technique described is a single step flasking procedure to construct a closed-hollow-obturator prosthesis as a single unit. To best understand the technique, this article describes management of a patient who had undergone partial maxillectomy secondary to squamous cell carcinoma rehabilitated with a hollow-obturator prosthesis.
上颌赝复体修复是治疗上颌部分或全部切除的最常用方法。赝复体的重量往往是导致其脱位的一个因素。为减轻重量而对赝复体进行镂空处理已是公认的事实。本文描述了一种替代的镂空技术,该技术是对先前描述的加工技术的一种改进。在热聚合丙烯酸树脂填充过程中,将预制蜡栓纳入罐内,以自动形成中空空间。本文描述的加工技术是一种一步法罐式程序,可将封闭的中空赝复体作为一个整体构建。为了更好地理解该技术,本文描述了一位因鳞状细胞癌而行上颌部分切除术的患者的治疗过程,该患者采用了中空赝复体修复。