Dental implants are the only way to properly replace a missing tooth, that is, to replace all and every single part of the tooth. Unfortunately, certain pre-existing medical conditions - almost always chronic health problems - make it impossible, or unadvisable to undergo dental implantation. Some of these are straightforward and can be understood at once: problems of the bones like osteoporosis that make it impossible, or haemophilia, where the blood just keeps coming are in this category. But some conditions are not intuitive at all, and diabetes is one of them. It is unadvisable to get dental implants if you have diabetes. But why?