Before you see to the dentist, follow some self-care tips:
Save any broken teeth pieces. If it was a clean break, your dentist may be able to cement the broken tooth back together as a temporary fix. Put the broken tooth fragments or completely knocked out tooth in a container with a small amount of milk or saline.
Rinse broken teeth fragments with warm water. If the tooth is completely knocked out, hold it by the crown (top) and rinse it off with water. Do not touch the roots of the tooth or try to scrape the roots to remove dirt.
Practice some first-aid basics. If an area is bleeding, rinse out your mouth with water. Place a piece of gauze or tissue in the socket and bite down. A cold compress can help with swelling and pain.