With our primary focus centered on bone and bone regeneration, we have continuously evaluated bone in relation to dental implant failure. Hence, we began noticing 10 years ago that the majority of marginal bone loss and implant failures were occurring in sites grafted with cadaver bone. Since that time, we have studied the biology of the various bone grafts to determine if one type of bone graft produces different bone than another. Our findings supported the conclusion that cadaver bone grafts do not produce normal bone and therefore explains the observed increase in marginal bone loss and implant failure rates.
Allografts and Bio-Oss have no long-term studies that support placing implants in sockets grafted with these materials. However, we now have studies that have evaluated bone loss and implant failure for implants in sockets grafted with cadaver bone grafts and the results are damning.
Since our initial hypothesis over 10 years ago, it appears clinical research has caught up with clinical observation. Let’s look at three studies that evaluated these materials at three different time frames. As you read the summaries, you can click on the images to jump to the corresponding articles: