Research done by Nobel Biocare, and clinical experience at ClearChoice show that in most cases, 4 implants, specially placed with some angulated, are just as effective in supporting a full arch fixed bridge in either jaw as 5,6, or 8 implant restorations. On rare occasions where bone is soft or worn down, additional implants may be needed, but these situations are the exception and usually only in the upper jaw. Most dental practitioners do not have the experience that ClearChoice has with the All-on-4 protocol, and they continue to use older techniques involving as many implants as they feel the bone will support.
ClearChoice has shown that in most cases, more than 4 implants is just not necessary, and can subject the patient to unnecessary surgery, treatment time and costs. -- Dr. more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.