title: Oral health-related quality of life in patients treated by implant-supported fixed dentures and removable partial dentures.
abstract: OBJECTIVE
  This study investigated the association between denture status [implant-supported fixed dentures (IDs) and removable partial dentures (RPDs)] and oral health-related quality of life (OHRQoL).
  
  
  METHODS
  Consecutive patients with IDs and RPDs were recruited from the Prosthodontics Departments at Showa University and Tokyo Medical and Dental University. The Japanese version of the Oral Health Impact Profile (OHIP-J-49) was administered to each subject. For each OHIP-J-49 question, the subjects were asked to indicate the frequency with which they had experienced a dental problem during the last month. Responses were recorded on a 5 point Likert rating scale, with 0 being never and 4, very often. Summary scores were calculated and regression analyses conducted to investigate the association between denture status and OHIP-J-49 summary score.
  
  
  RESULTS
  In total 79 ID subjects (mean age±SD of 51.7±12.4 years, 44.3% men) and 109 RPD subjects (mean age of 66.5±8.6 years, 30% men) participated after giving informed consent. The regression analysis between the type of treatment and the OHIP-J-49 summary score revealed a significant association with a coefficient of 17.0 (Confidence interval, CI: 10.9-23.1). When age and duration of denture usage, which had significant associations with OHIP-J-49, were included in this model, the regression coefficient remained virtually unchanged at 17.4 (CI: 9.75-25.0), thus indicating little potential confounding by them.
  
  
  CONCLUSIONS
  OHRQoL in patients with implant-supported fixed dentures is generally less impaired than it is in those patients with RPDs.
authors.affiliation: Department of Prosthodontics, Showa University, Ohta-ku, Tokyo, Japan.
authors.forename: Chisako
authors.initials: C
authors.lastname: Furuyama
authors.forename: Masayuki
authors.initials: M
authors.lastname: Takaba
authors.forename: Mika
authors.initials: M
authors.lastname: Inukai
authors.forename: Roseann
authors.initials: R
authors.lastname: Mulligan
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Igarashi
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Baba
mesh_terms: D019094:Dental Prosthesis, Implant-Supported; D003832:Denture, Partial, Removable; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009909:Oral Health; D011788:Quality of Life; D012044:Regression Analysis; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D016896:Treatment Outcome