The aim of this study was to determine the prevalence of dental caries, DMFT score and treatment needs in a group of diabetic patients (n = 222), mean age 46.9 yr, and to compare them to those recorded in a control group (n = 189), mean age 43.9 yr, using WHO criteria. Relations between the type and duration of diabetes mellitus, diabetic complications (retinopathy and neuropathy), diabetic control, and the subjects' DMFT status were separately studied. The results obtained revealed no difference in the prevalence of caries between the group of diabetics and the control group. Neither was any difference found in the mean numbers of teeth with fillings, but the number of extracted teeth per subject was significantly higher in the group of diabetics (12.3) than in the control group (9.7) (P less than 0.01). Type I diabetics were found to have a significantly higher number of teeth with fillings (4.05 vs. 2.22) than the non-insulin dependent diabetics (P less than 0.001). Type II diabetics, however, had a significantly higher number of extracted teeth (14.1 vs. 10.4) (P less than 0.001). There was no difference in the caries experience regarding duration of diabetes, diabetic control, or diabetic complications.

Scarce and randomly oriented oxytalan fibres are present in the connective tissue of dental pulp in both deciduous and permanent teeth.