When the enamel of a tooth is worn away, the tooth often becomes sensitive and is more susceptible to decay. Advanced cases often require crowns to save the teeth.Tooth enamel may be worn away in several ways.
We tend to think that only our front teeth can be chipped but you can break or chip a back tooth, too. A chipped tooth is sometimes, but not always, painful. In other words, you could have a chipped tooth and not know it.