- Save any pieces.
- Rinse the mouth using warm water; rinse any broken pieces.
- If there's bleeding, apply a piece of gauze to the area for about 10 minutes or until the bleeding stops.
- Apply a cold compress to the outside of the mouth, cheek, or lip near the broken/chipped tooth to keep any swelling down and relieve pain.
- See your dentist as soon as possible.
Source : WebMD Medical Reference