title: Quality of life assessment of implant-retained overdentures and fixed metal-acrylic resin prostheses in patients with marginal mandibulectomy.
abstract: BACKGROUND
  Several factors affect the prosthetic outcome of patients with mandibular defects. However, it is questionable whether fixed or removable implant-supported prostheses meet the expectations and satisfaction of the patients. The perspectives of these patients are important in managing the prosthetic treatment strategies.
  
  
  OBJECTIVE
  The purpose of this prospective clinical study was to evaluate the satisfaction and oral health-related quality of life of patients with marginal mandibulectomies with implant-retained overdentures and fixed metal-acrylic resin prostheses.
  
  
  METHODS
  Twenty-two participants with marginal mandibulectomies were included in the study. They completed an oral health impact profile questionnaire designed for patients with edentulism (OHIP-Edent) for the assessment of quality of life and visual analog scales (VASs) to validate their general satisfaction before treatment. Ten participants received 4 implant-retained fixed metal-acrylic resin prostheses, whereas 12 participants were treated with 2 implant-supported overdentures. Six months after delivery of their prostheses, the participants completed the OHIP-Edent questionnaire and VAS again. For the statistical analyses, Student t tests together with descriptive statistics (mean, standard deviation, frequency) were used in the 2 intergroup parameter comparisons that showed normal distribution. The Mann-Whitney U test and Kruskal-Wallis test were used for intergroup comparisons, and the Wilcoxon signed rank test was used for intragroup comparisons.
  
  
  RESULTS
  Compared with pretreatment mean values, a statistically significant (P<.05) decrease in mean scores of all OHIP-Edent values and an increase in VAS scores were found in both groups. After patients were treated, their OHIP-Edent values in the group with an overdenture prosthesis were higher than those in the group with a fixed metal-acrylic resin prosthesis (P<.05).
  
  
  CONCLUSIONS
  These results demonstrate that implant-retained overdentures and fixed metal-acrylic resin prostheses provide better function and, thus, oral health-related quality of life for patients with marginal mandibulectomies.
authors.affiliation: Professor, Department of Prosthodontics, Okan University, Faculty of Dentistry, Istanbul, Turkey. Electronic address: bkyazgan@gmail.com.
authors.forename: Banu
authors.initials: B
authors.lastname: Karayazgan-Saracoglu
authors.affiliation: Professor, Department of Prosthodontics, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, Turkey.
authors.forename: Arzu
authors.initials: A
authors.lastname: Atay
authors.affiliation: Assistant Professor, Department of Prosthodontics, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, Turkey.
authors.forename: Cumhur
authors.initials: C
authors.lastname: Korkmaz
authors.affiliation: Professor, Department of Prosthodontics, Gulhane Military Medical Academy Haydarpasa Training Hospital, Istanbul, Turkey.
authors.forename: Yumushan
authors.initials: Y
authors.lastname: Gunay
mesh_terms: D000180:Acrylic Resins; D000368:Aged; D000369:Aged, 80 and over; D019094:Dental Prosthesis, Implant-Supported; D003828:Denture, Overlay; D005260:Female; D006801:Humans; D008297:Male; D063168:Mandibular Osteotomy / Q000379:methods*; D008670:Metals; D008875:Middle Aged; D011446:Prospective Studies; D011788:Quality of Life
chemical_list: D000180:Acrylic Resins; D008670:Metals