3. Broken tooth
Teeth can break for lots of reasons. Tooth decay can cause teeth to break. The tooth decay takes away the strong tooth structure and causes the tooth to become weak and break.
Teeth can also break from biting on hard items. Common causes can include hard lollies, chocolate that has been kept in the fridge, nuts, popcorn kernels, pork crackling, and olive seeds. Opening items using your teeth can also cause them to break. If tooth enamel breaks away, the dentine layer inside the enamel can be open to the mouth. This may cause pain or make the tooth sensitive.