If your tooth is broken, chipped, or fractured, see your dentist as soon as possible. Otherwise your tooth could be damaged further or become infected, possibly causing you to end up losing the tooth.
In the meantime, try the following self-care measures:
If the tooth is painful, take acetaminophen or another over-the-counter pain reliever. Rinse your mouth with salt water.
If the break has caused a sharp or jagged edge, cover it with a piece of wax paraffin or sugarless chewing gum to keep it from cutting your tongue or the inside of your lip or cheek.
If you must eat, eat soft foods and avoid biting down on the broken tooth.
Treatment for a broken or chipped tooth will depend on how severely it is damaged. If only a small piece of enamel broke off, the repair can usually be done simply in one office visit. A badly damaged or broken tooth may require a more lengthy and costly procedure. Here are some ways your dentist may repair your broken or chipped tooth.
Dental Filling or Bonding
If you have chipped off just a small piece of tooth enamel, your dentist may repair the damage with a filling. If the repair is to a front tooth or can be seen when you smile, your dentist will likely use a procedure called bonding, which uses a tooth-colored composite resin.
Bonding is a simple procedure that typically does not require numbing the tooth. To bond a tooth, the dentist first etches its surface with a liquid to roughen it and make the bonding material adhere to it. Next, the dentist applies an adhesive material to the tooth, followed by the bonding material. After shaping the bonding material to look like a natural tooth, the dentist uses an ultraviolet light to harden the material.
Dental Cap or Crown
If a large piece of tooth breaks off or the tooth has a lot of decay, the dentist may grind or file away part of the remaining tooth and cover it with a crown, or tooth-shaped cap, made to protect the tooth and improve its appearance. Permanent crowns can be made from metal, porcelain fused to metal, all resin, or all ceramic. Different types have different benefits. All-metal crowns are the strongest. Porcelain and resin crowns can be made to look nearly identical to the original tooth. If the entire top of the tooth is broken off but the root is still intact, the dentist can often place a pin or a post in the root and build up enough of a structure onto which a crown can be made. Later, the dentist can cement the crown over the pin or post-retained restoration.
via: http://www.webmd.com/oral-health/guide/repairing-a-chipped-or-broken-tooth
