Measuring patient-based outcomes: is treatment satisfaction associated with oral health-related quality of life?

J Dent. 2012 Aug;40(8):624-31. doi: 10.1016/j.jdent.2012.04.007. Epub 2012 Apr 20.


Objectives: To evaluate the level of association between patients' denture satisfaction and oral health-related quality of life (OHRQoL) in edentate patients, and to identify the determinants of satisfaction that best predict OHRQoL. The effects of time and treatment type were also assessed.

Methods: Data from 255 edentate elders who participated in a randomised clinical trial were used. OHRQoL ratings were gathered using the Oral Health Impact Profile (OHIP-20) questionnaire. The McGill Denture Satisfaction Instrument was used to assess satisfaction with treatment (mandibular conventional denture or implant overdenture). Outcomes were measured prior to treatment, then 6 and 12 months after delivery of the new prostheses. Simple linear and multiple linear regression analyses were performed to statistically analyse the relationship.

Results: When the combined effect of all factors was assessed, only two variables of denture satisfaction ratings were significantly associated with OHRQoL: chewing ability (P=.005) and oral condition (P=.002). These two variables explained 46.4% of the variance in the OHIP change scores. This association varied with time, but the variables of importance remained the same. Type of treatment, gender, age and other socio-demographic variables were not significantly associated with improvement in OHRQoL once their effects were combined with denture satisfaction ratings.

Conclusions: Within the limitations of this study, a highly positive association exists between oral health-related quality of life and denture satisfaction. Chewing ability and oral condition are the determinants of denture satisfaction best associated with OHRQoL, predicting 46.4% of its improvement following a treatment.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Age Factors
  • Aged
  • Aged, 80 and over
  • Attitude to Health
  • Dental Prosthesis, Implant-Supported / psychology
  • Denture Design
  • Denture Retention / psychology
  • Denture, Complete, Lower / psychology*
  • Denture, Overlay / psychology
  • Esthetics, Dental
  • Female
  • Follow-Up Studies
  • Humans
  • Language
  • Male
  • Mastication / physiology
  • Middle Aged
  • Mouth, Edentulous / psychology
  • Mouth, Edentulous / rehabilitation
  • Oral Health*
  • Oral Hygiene
  • Patient Satisfaction*
  • Quality of Life*
  • Sex Factors
  • Speech / physiology
  • Time Factors
  • Treatment Outcome

Associated data

  • ISRCTN/ISRCTN24273915