1. 1. A report of early clinical success with polymethacrylate-coated Vitallium pins inserted endosteally into edentulous areas of baboons in tripod or quadripod arrangements and united coronally with autopolymerizing polymethacrylate is submitted. Twelve nonanatomic endosteal implants have been placed into mandibular and maxillary areas for periods up to and over 6 months, with good clinical and x-ray success. A complementary histologic report will follow. 2. 2. A flask for molding polymers under pressure and heat has been devised and described. 3. 3. Vitallium pins have been designed to receive polymers. The results are pins that are strong, will not flake, and are resistant to abrasion. 4. 4. A technique for placing these implants has been described. 5. 5. Gross and microscopic study revealed successful adaptation of the tissues to the implants.