A Study to Determine the Histological Acceptance of Artificial Teeth Fabricated from Different Material Compositions When Implanted into the Jaws of Dogs.

摘要

Cylindrically shaped dental implants having porous root portions were fabricated from polymethyl methacrylate (PMMA),cobalt-chromium alloy (Co-Cr-Mo) and an alumina ceramic material. The relationships between mechanical properties and pore microstructure have been determined for materials produced by this process. Two different porous root configurations were evaluated for each material. Approximately twenty two implants of each porosity-material combination were implanted into dogs. Clinical evaluations consisting of mobility,pocket depth,gingival inflammation and plaque accumulation with radiographic appearance and histological analysis were used to determine the performance of the implants. To date it appears as though tissue ingrowth can establish a functional support for a dental implant as demonstrated by the successful performance of a majority of the Co-Cr-Mo alloy and PMMA implants.