New aspects of the degradation of porcelain in dentistry

摘要

A singular case of a patient with a systemic pathology is presented and discussed evaluating the analyses to which he was subjected. The SEM observations of liver's and kidney's bioptic slices and their x-ray microanalyses revealed that the disease was caused by debris of dental porcelain. They were released by worn dental bridges, ingested and espelled along with feces. Debris with diameters less than 20 mu m passed the bowel epithelial barrier and went into the bloody stream. Liver filtered them, and they caused a granulomatous reaction. The relativity of the biocompatibility of materials is discussed.