If you've lost a tooth, your dentist may have recommended getting a dental implant to fill the empty space and allow for optimal function of your teeth. The dental implant itself is only a replacement for the root of the lost tooth, so after the implant has been placed, you'll still need to get a restoration, or replacement tooth. Implants provide a strong foundation for fixed (permanent) or removable replacement teeth that are made to match your natural teeth.
To make the new tooth or teeth, your dentist will make an impression of your existing teeth, creating a model of your bite. The new restoration, most typically a crown, will be based on this model so it will blend in perfectly with the rest of your teeth. The crown is then attached to the connector point (abutment) on your implant.
Replacing a lost tooth is essential to a healthy mouth and a healthy body. It will provide you with increased aesthetics of course, but will also improve your speech, ease of eating, and oral hygiene.