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Scanning x-ray microanalysis of root canal sealers
Oral Surgery, Oral Medicine, and Oral Pathology
|December 1, 1979
Abstract:
Seven commercially available root canal sealer powders were analyzed by scanning x-ray microanalysis to identify constituent elements in each. Analysis showed that strongly cytotoxic sealers in vitro contained lead or magnesium, while those materials which exhibited mild or moderate cytotoxicity in vitro contained bismuth, zinc, calcium, or silicone.