Showing papers on "Osseointegration published in 1975"
TL;DR: Many of the numerous materials that are currently being used in dental implantation as well as many of the available designs are reviewed, including ceramics, titanium, Vitallium, vitreous carbon, and poly (methyl methacrylate) as materials with endosteal and subperiosteal designs.
Abstract: The loss of human teeth and the problems concomitant to their successful replacement have plagued mankind for centuries. Following loss of a natural tooth, artificial tooth implantation was often attempted with a variety of materials, including carved bone or ivory, various metals, and precious stones. Each year millions of people lose their teeth because of decay, disease, accidents, and even old age. About 55 million adult teeth are lost annually in the United States, and it is estimated that up to 20% of all adults have no natural teeth left. Thus, the problem is as real today as in antiquity. The object of this paper is to review many of the numerous materials that are currently being used in dental implantation as well as many of the available designs. In general, this includes ceramics, titanium, Vitallium, vitreous carbon, and poly (methyl methacrylate) as materials with endosteal (direct replica, screw, anchor, and blade) and subperiosteal designs.
22 citations
TL;DR: The results of this study suggest that both short (8 mm high) and long (10 or 12mm high) implants may be used with nearly equal success rates in the posterior segments of the jaws.
10 citations
TL;DR: The Polymer Expansion Implant System, which is a system for the substitution of missing dental roots in natural or surgical alveolus, has been developed by the author and the polymer used is poly (methyl methacrylate) (PMMA).
Abstract: The Polymer Expansion Implant System, which is a system for the substitution of missing dental roots in natural or surgical alveolus, has been developed by the author. The polymer used is poly (methyl methacrylate) (PMMA). A material is sought that has three of the basic physical and mechanical qualities of human dentine: low modulus of elasticity, thermal and electrical passiveness, and ideal porosity. In addition it should be resistant, easily worked, biocompatible, and of low cost. Of the biomedical polymers, PMMA has these qualities, and it can be used as a substitute for dental roots. The design of bodies to be implanted as substitutes for dental roots requires: anatomical measurements of the maxilla and sockets; methods of retention by the bone tissue; and methods of insertion. The formation of lamina dura around an implanted body is a reply of the organism to the forces acting on it and a demonstration of the good interaction of the porosity of the material, the peri-implant collagenous fibers and bone. X-rays that demonstrate the behavior of bone to a PMMA implant are shown.
10 citations