According to the The Renfrew Center Foundation up to 24 million people in the United States experience an eating disorder. This is dark figure that can be even high due to the fact that many people keep their eating disorder a secret. According to a study by the University of Bergen in Norway, showed that patients who suffer from eating disorders, such as Anorexia and Bulimia, experienced substantially more dental health problems. For example, sensitive teeth, severe dental erosion and facial pain compared to those without.