Hi.. Can understand your concern.. As per your complain due to diabetes there is a bad effect over the overall health of teeth.. In case of persistent high level of glucose in blood can lead to high glucose level in the saliva and when there is high glucose level in saliva there are more chances of bacterial flourishment on the teeth,more deposition of plaque layer and there is more chances of acid production by bacteria and finally more tooth decay and damage to teeth.. The acid produced by bacteria leads to damage to the tooth minerals and there is more weakening of the tooth as well as more cavity formation.. The loss of minerals and cavities can lead to cracking of the tooth and can lead to loss of tooth as a cracked tooth through and through can not be saved and needs extraction.. High glucose levels can also lead to damage to the gum tissue causing gum recession and loosening of the teeth and can fall.. The best way to control further damage is to first of all reduce the glucose level of body by continuous monitoring, proper medication,dietary modifications like cutting down on sweets and starchy food and intake of more of fibres and proteins, lifestyle modifications like being more active and doing light workout and other physical activities.. Maintaining a good oral hygiene by blushing twice daily, flossing and using antimicrobial gargles after both major meals.. Get a regular checkup of teeth and gums done after every 6 months by a dentist.. Hope this information helps.. Thanks and regards.. Dr.Honey Nandwani Arora.