[Cost-effectiveness when treating an edentulous mandible]. / Kosteneffectiviteit bij de behandeling van een edentate onderkaak.

When treating an edentulous patient with complaints of unsatisfactory retention of his complete mandibular denture, various treatment options are available: a new conventional denture, an implant-supported overdenture, and an implant-supported fixed partial denture. Important considerations during the decision-making process are patient satisfaction, cost of denture fabrication, and cost of maintenance. The outcome of the diagnostic procedure will have financial consequences. On that basis, a satisfactory treatment plan can be established and carried out. The need exists for a protocol which takes into account cost-effectiveness and is useful in selecting the appropriate treatment option, adjusted to individual requirements.

Functional and psychosocial impacts of oral disorders in Canadian adults: a national population survey.

BACKGROUND: In Canada, national health surveys do not usually include questions pertaining to self-perceived oral health. Those that do use ad hoc sets of questions rather than standardized and validated measures of the functional and psychosocial impacts of oral disorders. AIMS: To collect national data on the impacts of oral disorders from a representative sample of Canadian adults and to compare the results with similar national surveys conducted in the United Kingdom and Australia. METHODS: Data were collected from adults by means of a telephone interview survey based on random-digit dialing. Oral health was measured with the short-form Oral Health Impact Profile (also known as the OHIP-14 questionnaire), which asks about the frequency of 14 functional and psychosocial impacts that people have experienced in the previous year as a result of problems with their teeth, mouth or dentures. RESULTS: Of 3,033 interviews conducted, data were sufficient for analysis for 3,019 respondents. Just under one-fifth of the 3,019 respondents (19.5%) reported 1 or more of the 14 impacts "fairly often" or "very often" in the previous year. The prevalence was higher among edentulous respondents (30.7%) than among dentate respondents(18.6%), as were the extent and severity scores. The prevalence of impacts was lowest in Atlantic Canada (16.1%) and highest in the Prairies (23.3%), although the difference was not statistically significant. Prevalence rates and extent and severity scores were highest among those who wore dentures, recipients of public dental care and irregular dental visitors. Considerable income disparities were also observed, with 34.9% of those from the lowest-income households reporting impacts. The prevalence of effects and the extent and severity scores in Canada were similar to those reported from the United Kingdom and Australia. CONCLUSIONS: One in 5 Canadian adults experienced adverse impacts from oral disorders. Further work is needed to identify the material and psychological determinants of these impacts.

Cost-effectiveness of mandibular two-implant overdentures and conventional dentures in the edentulous elderly.

Implementation of new therapies is usually governed by financial considerations, so efficacy studies should also include cost comparisons. The cost and effectiveness of mandibular conventional dentures (CD, n = 30) and two-implant overdentures (IOD, n = 30) were compared in elderly subjects. Effectiveness (Oral Health Impact Profile, OHIP-20) and cost were measured up to one year post-treatment. Data for subsequent years were estimated by the Delphi method. Using an average life expectancy of 17.9 years, the equalized annual costs (in Canadian dollars) were dollar 399 for CD and dollar 625 for IOD (p < 0.001), and the equalized annual values for the outcome (OHIP-20) were 47.0 for CD and 31.3 for IOD treatment (p < 0.05). These values translate into a yearly additional cost for IOD treatment of dollar 14.41 per OHIP-20 point. These results are key to the implementation of programs to provide this form of therapy for edentulous adults.