
Knocked Out Permanent Tooth
Recover the tooth, making sure to hold it by the crown (top), and not the root end. Rinse, but do not clean or handle the tooth more than necessary. Reinsert the tooth in the socket and hold in place using a clean piece of gauze or cloth. If the tooth cannot be reinserted, carry it in a cup containing milk or water. Because time is essential, see a dentist immediately.
Broken Tooth 
Rinse the area with warm water. Put a cold compress over the facial area of the injury. Recover any broken
tooth fragments. Get immediate dental attention.
Toothache
It is important to realize that a child's toothache will most likely become worse with time instead of better.
A mild analgesic such as aspirin or Tylenol can be administered until a dentist can see the child, however the dentist must be seen immediately to prevent possible spread of infection
and to alleviate your child's pain and discomfort.
Cut or Bitten Tongue, Lip or Cheek
Ice can be applied to any bruised areas. For bleeding, apply firm (but gentle) pressure with sterile gauze or a clean cloth. If the bleeding does not stop with pressure or continues after 15 minutes, go to an emergency room or dentist.
Broken Braces and Wires
Remove a broken appliance only if it comes out easily. If it is lodged or painful to remove, cover any protruding edges with wax, cotton balls, gauze or chewing gum. DO NOT REMOVE any wire caught in the gums, cheek or tongue; see a dentist immediately. Emergency attention is usually not required for loose or broken appliances that cause no discomfort.
Bleeding After a Baby Tooth Falls Out
Fold a piece of gauze and place it (tightly) over the bleeding area. Bite down on the gauze for 15 minutes—if bleeding continues, see a dentist.
Cold or Canker Sores
Over the counter medications will usually provide temporary relief. If sores persist, visit your dentist.
Possible Broken Jaw
In the event of jaw injury, tie the mouth closed with a towel, tie or handkerchief. Go immediately to an emergency room.