Prevalence of teeth and dentures among elderly in Norway receiving social care.

The aim of this study was to estimate the prevalence of teeth and dentures in individuals aged 67 years and over receiving social care in Norway. A representative sample of 2893 individuals was selected from all 19 counties of Norway. In all, 1910 individuals (1358 living in institutions, 552 living at home) could be interviewed and examined by calibrated local dental teams in 1996-97. Overall response rate was 66%. Out of the examined, 1359 (71%) were women and 551 (29%) were men. The mean age was 85.1 years for women and 82.2 years for men. In all, 19.6% had 'own teeth only', 21.0% 'own teeth and dentures', 54.0% 'dentures only', and 5.3% 'neither teeth nor dentures'. Previous findings in a random sample of elderly Norwegians from three regions with markedly different dental health were confirmed by using polychotomous logistic regression. Three regions of Norway could be identified with respect to the occurrence of teeth and dentures: region A (South-East counties of Norway including the capital Oslo), region B (West-Central counties), and region C (Northern counties). Significant differences existed between them and non-significant differences within them. A mean number of 12.3 teeth were observed in 773 (40.5%) dentate individuals, 13.4 in region A, 11.4 in region B, and 9.0 in region C, respectively. In conclusion, there are large geographical disparities with respect to dental/denture status also in individuals receiving social care in Norway. When the data were collected (1996-97), the oral health goal for the year 2000 suggested by WHO/FDI aiming at 50% of people aged 65 years and above having a minimum of 20 remaining functional teeth was not fulfilled for individuals receiving social care in large parts of Norway.