However, oral health is about more than cavities and gum disease. Research has shown that there is an association between the health of a person’s mouth and their overall health. Experts consider oral health problems to be a global health burden Trusted Source. Without treatment, tooth decay or gum problems can lead to pain, problems with self-confidence, and tooth loss. These issues may lead to malnutrition, speech problems, and other challenges in a person’s work, school, or personal life.