The answer to this question, requires another question, how much is a tooth worth? As we age one enjoys the simpler things in life, like our body parts and eating. Anyone who wears full upper and full lower dentures knows that eating an apple, corn on the cob or a steak is difficult or downright impossible. The use of two or three mini-dental implants to stabilize the lower denture is not difficult or expensive.

I see many advertizements claiming that “Dental implants are a permanent tooth replacement.” What in life is permanent? Whether one believes in God, human evolution or intelligent design, life is an incredible thing. We cannot as faulted mortals recreate nature. Permanent implies for the rest of ones life. Dental implants can last a lifetime but so can natural teeth. The only advantage dental implants have over healthy natural teeth are that they do not decay because they are made from titanium. Teeth can and do get periodontal disease, dental implants can and do get peri-implant disease. Teeth can and do break, dental implants (and / or their components) can and do break.
All this being said, dental implants are a far superior situation than dentures, partials and in most cases fixed bridgework.

Bone Replacement Material:
There are many types of bone replacement materials. These materials may be used for ridge maintenance/preservation after tooth extraction, for ridge augmentation, for periodontal and periimplant repair and support, and for maxillofacial surgical onlay and inlay purposes when bone replacement is required.