You may be a candidate for dental implant if you are no longer a growing child, and you have one or more of the following conditions:
- Missing one or more teeth
- Have unusually wide spaces in between teeth
- Have trouble eating, chewing or speaking properly
- Use dentures that cause sore spots when chewing, or is unwilling to use dentures
- Have problems with existing crowns or bridges
- Teeth holding your bridge or crown are moving or loosening
(Source: dentalimplant.com)