This is not to be confused with well-known nasal mucus. Research now suggests that mucus found in different internal linings contains various proteins that help to protect the teeth.
This mucus can be found in the lungs, intestine and cervix.
According to the Huffington Post, scientists are trying to develop a synthetic mucus which “which they would add into toothpaste and chewing gum”. This should cut down on needless visits to the dentist.