Anyone in reasonable health who wants to replace missing teeth can be a candidate for dental implants. You must have enough bone in the area of the missing teeth to provide for the anchorage of the implants.
Some people are missing all their teeth and most of those are excellent candidates for dental implants.
Implants are a perfect solution for the following problems:
You are embarrassed about missing teeth when smiling or laughing
Complete or partial dentures are causing you discomfort when you eat, chew and swallow
You avoid eating in public because your dentures frequently slip or fit badly
You have a complete or partial denture and seldom use it
There are really not too many things that can go wrong with dental implants. The complications can usually be easily corrected.