title: Implant-supported facial prostheses provided by a maxillofacial unit in a U.K. regional hospital: longevity and patient opinions.
abstract: OBJECTIVE
  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.
  
  
  METHODS
  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.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Oral and Dental Science, Division of Restorative Dentistry, Bristol Dental School and Hospital, Bristol, UK.
authors.forename: S M
authors.initials: SM
authors.lastname: Hooper
authors.forename: T
authors.initials: T
authors.lastname: Westcott
authors.forename: P L L
authors.initials: PL
authors.lastname: Evans
authors.forename: A P
authors.initials: AP
authors.lastname: Bocca
authors.forename: D C
authors.initials: DC
authors.lastname: Jagger
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D016009:Chi-Square Distribution; D002648:Child; D004431:Ear, External; D005137:Eye, Artificial / Q000191:economics / Q000523:psychology; D005260:Female; D017721:Hospital Costs; D006801:Humans; D008297:Male; D008875:Middle Aged; D009666:Nose; D020273:Orbital Implants / Q000191:economics / Q000523:psychology*; D017060:Patient Satisfaction; D019736:Prostheses and Implants / Q000191:economics / Q000523:psychology*; D017797:Prosthesis Coloring; D017755:Prosthesis Fitting; D019919:Prosthesis Implantation / Q000191:economics / Q000523:psychology; D011795:Surveys and Questionnaires; D014852:Wales