Tissue Response to Base-Metal Dental Alloys.

摘要

Four non-precious alloys, two of which contained beryllium, were implanted in the subcutaneous tissue of rats. Subsequent sacrifice times ranged from 3 days to 1 year. Histologic evaluation of the soft tissue was made without knowledge of the alloy involved. On the basis of these observations, it was not possible to discern any difference between the reaction of the tissues to the metal discs. The presence or absence of beryllium did not appear, even after 1 year, to have any appreciable influence on the character of the tissue response. (Author)