Background:Diabetes mellitus is a metabolic disease leading to abnormal fat, carbohydrate and protein metabolism. Reduced salivary flow rate caused by hyperglycemia is characteristic mainly for periods of poor metabolic control of diabetes, thereby facilitating the growth of aciduric bacteria and caries-lesion development. The objective of our study was to evaluate the effects of diabetes mellitus on dental caries micro-organisms responsible for caries.Materials and Methods:This study was carried out on 60 subjects consisting of 2 groups. The Group A (study group) consisted of 30 subjects with diabetes mellitus and dental caries, and the Group B (control group) consisted of 30 subjects with dental caries but no systemic disease. DFS/dfs index in all subjects was evaluated and compared. Unstimulated salivary flow was collected and levels of Streptococcus mutans were analyzed.Results:It was found that the fasting blood sugar in Group A subjects because of which there was increased streptococcus mutans count and hence high caries index as compared to that of Group B.Conclusion:From our study, we could conclude that with increased age, blood sugar levels, DMFT values, dental caries increases in diabetics than in normal (control) subjects and therefore relationship does exist between diabetis mellitus, oral microbiota and dental caries.

Background:Diabetes mellitus is the fifth most common chronic condition and the sixth most frequent cause of death among the elderly. The objective of this research was to develop a new method for diabetes diagnosis by analysis of the glycogen content of the oral epithelial cells.Materials and Methods:Ten control subjects and ten diabetic patients (study group) were taken, four oral smears for both control and study group from the buccal mucosa were taken and stained with hematoxylin and eosin stain, Papanicolaou (PAP) stain, periodic acid Schiff (PAS) stain and PAS-Diastase (PAS-D) stain.Results:The results showed that in the diabetic group: (i) The epithelial cells stained with PAP stain exhibited figures of binucleation and occasional karyorrhexis, (ii) the epithelial cells treated with PAS-D showed that glycogen containing cells did not take up the stain as compared to the other cells.Conclusion:The results associated with clinical and histological observations suggest that diabetes mellitus can produce alterations of oral epithelial cells as well as in their glycogen content.

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