One of the most important parts of a good dental health program is learning how to care for your teeth and gums. When you prevent the onset or progression of periodontal (gum) disease and tooth decay, your teeth should stay healthy and useful for your lifetime. Periodontal infections may significantly impact your overall health. It may serve as risk indicators for certain systemic diseases or conditions such as coronary (heart) disease and diabetes. Current research indicates that genetics, tobacco usage, elevated stress, inadequate diet and xerostomia (dry mouth) also play a role in the etiology of periodontal disease.