Hello and welcome to Health Care Magic, I have gone through your query and I can understand your concern. Dental caries is a microbial disease (microorganisms) which desteoys the hard structure of tooth. The Various factors that may help the microbial attack are: Food mostly Carbs Number of Microorganisms itself Personal Immune/ Defence Response Time. Though some people have genetic predisposition for caries but other than that Any condition that may encourage the above factors will also increase the chances of Caries. Now as you suggested, You are a Diabetic Patient. In Diabetes the Recovery Time/Repair of Body from any insult/microbial attack/injury is hampered and also it increases the number of Microorganisms in the mouth. Thus Diabetics have a more predisposition for Caries as well. Moreover the Poor Oral Hygiene as seen with many Diabetic patients can also relate to it. I would suggest you to have a visit to your dentist, if you haven’t had them filled all. Moreover, if i were your dentist, i would have advised you to increase your fibrous foods intake, Proper And Regular Cleaning of teeth. I would also advise you to Brush n Floss regularly and positively. Use Oral Rinses to decrease the load of Microorganisms in your mouth and for freash breath. Hope It was Helpful. Thanks and Regards Dr Himayun Mir