Tooth Enamel Erosion and Restoration
What are the environmental causes of tooth surface erosion? continued...
More findings show bulimia as a cause of enamel erosion and tooth decay. Bulimia is an eating disorder that's associated with binge eating and vomiting, a source of acid. Frequent vomiting erodes tooth enamel and can lead to cavities.
Saliva plays a key role in keeping teeth healthy and strong. Not only does saliva increase the health of the body tissues, it protects enamel by coating the teeth in protective calcium and other minerals. Saliva also dilutes erosive agents such as acid, removes waste material from the mouth, and boosts protective substances that help fight mouth bacteria and disease.
In a healthy mouth, calcium-rich saliva helps strengthen teeth, even if you drink an acidic soda or juice. Yet when you go overboard and ingest a lot of acidic foods and beverages, this strengthening process on the teeth no longer occurs.
Does plaque cause enamel erosion?
Plaque is a sticky film made up of saliva, food particles, bacteria, and other substances. Plaque forms between your teeth and gets inside tiny holes or pits in the molars. It also gets around your cavity fillings and next to the gum line where the teeth and gums meet.
Sometimes the bacteria in plaque changes food starches into acids. When this happens, the acids in plaque start to eat away at the healthy minerals in the tooth enamel. This causes the enamel to wear down and become pitted. Over time, the pits in the enamel increase and grow in size.