title: Better oral health related quality of life: type of prosthesis or psychological robustness?
abstract: Sense of coherence (SOC) is an individual-based coping characteristic and believed to influence a person's ability to adapt to life stressors, such as edentulism and using complete denture. Thus, SOC may mediate the effect of prosthetic treatment on quality of life.
  
  
  OBJECTIVE
  1. To simultaneously test the effect of type of treatment and sense of coherence on oral health related quality of life (OHRQoL) in edentate elders and to identify any interaction. 2. To report the level of sense of coherence among a sample of edentate elders.
  
  
  METHODS
  Data were collected and analysed cross-sectionally at a 1-year follow-up from 173 edentulous elders who had randomly received mandibular-implant overdentures or conventional dentures, both opposed by new conventional maxillary dentures. The dependent outcome variable, oral health related quality of life, was measured using the Oral Health Impact Profile (OHIP-20). Independent variables included SOC and prosthesis type, as well as socio-demographic variables. SOC was evaluated using the 13-item likert scale of The Orientation to Life questionnaire.
  
  
  RESULTS
  The group mean SOC score was 70.28 (SD=9.6). Married or coupled people had significantly higher SOC scores than those who were separated, single or divorced (p=0.04). General linear model analyses demonstrated that there was a statistically significant main effect for type of prosthesis, F(1.169)=0.71, p=0.008, with no interaction with SOC.
  
  
  CONCLUSIONS
  The results of this study suggest that, in edentulous elders, SOC does not mediate the effect of the type of prosthetic treatment on oral health related quality of life.
authors.affiliation: Département de dentisterie de restauration, Faculté de Médecine dentaire, Université de Montréal, Montréal, Canada.
authors.forename: E
authors.initials: E
authors.lastname: Emami
authors.forename: P J
authors.initials: PJ
authors.lastname: Allison
authors.forename: P
authors.initials: P
authors.lastname: de Grandmont
authors.forename: P H
authors.initials: PH
authors.lastname: Rompré
authors.forename: J S
authors.initials: JS
authors.lastname: Feine
mesh_terms: D000223:Adaptation, Psychological; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D019094:Dental Prosthesis, Implant-Supported / Q000523:psychology*; D003826:Denture, Complete, Lower / Q000523:psychology*; D003828:Denture, Overlay; D004522:Educational Status; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D017533:Marital Status; D009066:Mouth, Edentulous / Q000523:psychology*; D009909:Oral Health; D011788:Quality of Life; D018434:Sickness Impact Profile; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires