Toothaches: Rinse your mouth with warm water and use floss to remove any food particles compacted around the area. If you notice a swelling, use an icepack on the outside of your cheek. Seek dental help immediately.
Chipped or broken teeth: Save any and all pieces. Rinse your mouth with warm water. If there is any bleeding, bite on some gauze for 10 minutes or until the bleeding ceases. Apply an icepack to the outside of your mouth near the broken tooth to keep the swelling down and to relieve pain. See your dentist as soon as possible.
Knocked out teeth: Retrieve the tooth, hold it by the crown (do not touch the root portion), rinse off the tooth root with room temperature water. Do not scrub the tooth or detach any tissue fragments. If possible, try and put the tooth back in place. If not, keep it in a small container of milk (or a cup of water that contains a pinch of table salt, if milk is not available). And see your dentist as soon as possible. Teeth are more likely to be saved if you can get to the dentist within an hour of the injury.