Do you have one or more of the following
1.Totally without any teeth in your both upper and lower jaw..
This is called TOTALLY EDENTULOUS
2.Only few teeth remaining in the jaw?most of the teeth already removed..
This is called SOON TO BE EDENTULOUS
3.Using complete removable denture for both upper and lower jaws..
and you are NOT HAPPY with the removable dentures..because of looseness, gum irritation, difficulty in speaking and eating..
4.Most of the teeth are shaking with lot of gum swelling and pockets..and all teeth needs extraction and replacement.
This situation is called CHRONIC DESTRUCTIVE PERIODONTITIS-SEVERE STAGE
5.Most of the teeth are severely decayed with only small parts of teeth(root stumps) remaining,, patient will have repeated chronic dental pain, frequent swelling and abscess around teeth, difficulty in eating,,long history of multiple dental treatment like filling, root canals, crowns and bridges..This situation is called EXTENSIVE END STAGE DENTAL DECAY
All the above 5 situations are very much suitable for implant treatment and fixed teeth.Based on the bone situation and your need..your dentist will suggest either all on 4 or all on 6 or all on 8..
With recent advances in dental field , you can get fixed teeth with implants without any need for bone grafts and sinus lifts and waiting periods..