dental cement from a drugstore to cover the broken tooth. dental cement can hold your tooth together temporarily and prevent further damage.
trauma to the inside of the mouth is quite common. a fall or a blow to the face can cause your teeth to cut the surface of your lips, tongue, or cheeks. this type of injury can bleed heavily, due to the rich supply of blood in the area. however, the soft tissue usually heals quickly.
the first step is to rinse out your mouth with salt water or hydrogen peroxide. in many cases, this will clear out the blood and allow you to determine the extent of the injury. 