In 12 cases in whom the final type of Palatal Augmentation Prosthesis （PAP） was installed after surgery for oral malignant tumor, we examined the weight, status and waiting period until installation, and compared six cases of a new method of fabricating PAP with six cases of the conventional method.
As a result, the period until installation was shorter with the new method and the weight was less compared with the conventional method, and there were no cases of breakage. Furthermore, although the treatment time was longer, the feeling was improved with the new method.

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Purpose: Restoration of defects in the maxillofacial region with a facial prosthesis provides esthetic recovery and protection of wounds. A silicone rubber facial prosthesis is good for esthetic recovery, however, the retention between the prosthesis and skin remains unresolved. This article presents a new method of fabricating a lightweight facial prosthesis and a method of retention to skin by adhesive tape.
Fabrication method: An acrylic-resin defect frame and a facial plate were made from a defect model, and both were bonded with self-curing resin to complete a facial prosthesis shell. The defect-side facial image was reproduced by computer from a photograph of the patient, printed on thermal-transfer paper with adhesive and transferred onto a polyester cloth using an iron. The facial prosthesis was completed by bonding the facial prosthesis shell and polyester cloth with image by adhesive. This lightweight facial prosthesis was strongly bonded to the patient’s skin with adhesive tape. The three cases were a 65-year-old female with left-mid-face defect including orbit, a 72-year-old male who had undergone a right extended maxillectomy with free skin graft, and a 60-year-old male who had undergone a right extended maxillectomy with orbital evisceration. The new facial prostheses which were applied to the three patients weighed 8.1 g, 3.8 g, and 3.2 g respectively.

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Although implant-supported facial prostheses can achieve good outcomes for esthetic and functional rehabilitation of oral cancer patients, there are many limitations in the application of facial implants such as irradiated bone or cost. We must therefore consider an alternative method for retaining facial prostheses. In this study, the possibility of using a self-adhesive sheet of segmented polyurethane gel （GELRODE^Ⓒ, Takiron Co., Ltd., Japan） as an adhesive material for facial prostheses was investigated. The adhesive force of GELRODE to the silicone material （non coated, primer coated and bond coated） and the skin of the forearm was measured. The adhesive force of GELRODE to the bond-coated silicone was higher than that to skin, suggesting that GELRODE is useful for adhesion of facial prostheses.

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