Barry W. Sauer

The effect of high pressure insertion and antibiotic inclusions upon the mechanical properties of polymethylmethacrylate.

The properties of self-curing polymethylmethacrylate as affected by the admixing of an antibiotic to the powder-liquid mixture and as affected by insertion technique demonstrated that the antibiotic agent may leach from the surface of the acrylic, but not necessarily from the interior. The compressive and tensile strength, determined on two different commercial formulations, suggests that the antibiotic additive is not detrimental to the mechanical properties. A high pressure insertion technique produces a significant improvement in the mechanical properties of the self-curing acrylic material.

Characterization of Tissue Growth into Pellets and Partial Sections of Porous Porcelain and Titania Implanted in Bone

Porous titania and porous porcelain were selected for this investigation* because of their chemical inertness and ease of fabrication. Titanium metal implants have demonstrated a high degree of tissue tolerance1,2; these are certain to have maintained some oxide layer on the surface. Also, porcelain was shown to be non-toxic when implanted intramuscularly in rabbits3.