Hooper S M, Westcott T, Evans P L L, Bocca A P, Jagger D C
Department of Oral and Dental Science, Division of Restorative Dentistry, Bristol Dental School and Hospital, Bristol, UK.
J Prosthodont. 2005 Mar;14(1):32-8. doi: 10.1111/j.1532-849X.2005.00004.x.
The aim of this study was to acquire information on the types and longevity of implant-retained facial prostheses and the opinions of patients on several factors related to their prostheses.
A survey of 75 maxillofacial prosthetic patients currently under treatment and review at the Maxillofacial Unit, Morriston Regional Hospital was conducted through a 23-question postal questionnaire. These patients were selected as representative of a group of individuals receiving treatment or under review for the fabrication of maxillofacial prostheses.
Of the prosthetic replacements, 83% were ear prostheses, 8% nose, 6% eye, and 2% combination prostheses. Of the 47 respondents, 8 (17%) reported that they were currently wearing their original prostheses. The remaining 39 (83%) respondents had all been provided with at least 1 replacement prosthesis. The mean lifetime of the prostheses was found to be 14 months (range: 4-36 months). The majority of replacement prostheses in this study were provided as a result of color fade or wear of the silicone material of the previous prosthesis. Individuals with no previous experience wearing a prosthesis had an unrealistic expectation of their prosthesis longevity, with a mean value of 17.8 months. In comparison, individuals with previous experience had reduced expectations, with a mean of 14.4 months. In terms of the patients' opinions of the overall quality of their prostheses, the results demonstrated that a large number of patients were satisfied. Thirty-five patients rated their prostheses as excellent and 9 as good. At 7-12 months, 4 patients rated their prostheses as excellent and 8 as good. At 13 months, 4 patients rated their prostheses as excellent and 5 as good.
It is important that advice be given to patients on the expected average longevity of their prostheses, together with information on factors affecting the longevity (i.e., environmental staining, cosmetics, and cleaning regimes). In this study, 26% of the replacement prostheses were provided due to color fading of the original prosthesis. This highlights the need for continuing research in the development of materials used for the construction of facial prostheses with improved properties, and in particular, improved color stability.
本研究的目的是获取有关种植体固位面部假体的类型和使用寿命的信息，以及患者对与其假体相关的几个因素的看法。
通过一份包含23个问题的邮寄问卷，对莫里森地区医院颌面科目前正在接受治疗和复查的75名颌面修复患者进行了调查。这些患者被选为接受颌面假体制作治疗或正在接受复查的一组个体的代表。
在假体置换中，83%为耳部假体，8%为鼻部假体，6%为眼部假体，2%为组合假体。在47名受访者中，8人（17%）报告称他们目前仍佩戴着最初的假体。其余39人（83%）受访者都至少更换过1次假体。发现假体的平均使用寿命为14个月（范围：4 - 36个月）。本研究中大多数更换的假体是由于先前假体的硅酮材料褪色或磨损。以前没有佩戴过假体经验的个体对其假体寿命有不切实际 的期望，平均值为17.8个月。相比之下，有过佩戴经验的个体期望降低，平均值为14.4个月。就患者对其假体整体质量的看法而言，结果表明大量患者感到满意。35名患者将其假体评为优秀，9名评为良好。在7 - 12个月时，4名患者将其假体评为优秀，8名评为良好。在13个月时，4名患者将其假体评为优秀，5名评为良好。
向患者提供有关其假体预期平均使用寿命的建议以及影响使用寿命的因素（即环境染色、化妆品和清洁方式）的信息非常重要。在本研究中，26%的更换假体是由于原始假体褪色。这凸显了持续开展研究以开发具有改进性能的面部假体制作材料的必要性，特别是提高颜色稳定性。
