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Journal of Dental Research, Vol 56, 795-801, Copyright © 1977 by International & American Associations for Dental Research Online Journals

ARTICLES

Evaluation of intracytoplasmic particles in histiocytes after endodontic therapy with a hydrophilic plastic

J. H. Kronman, M. Goldman, P. S. Lin, L. B. Goldman and C. Kliment

The presence of granules within the cytoplasm of periapical tissue histiocytes had been observed in teeth which had a root canal overfilled with a hydrophilic plastic polymer. SEM examinations revealed these granules to be barium sulfate, which was added to the polymer for radiopacity. X-ray spectra revealed strong calcium peaks in bone adjacent to the histiocytes, which showed strong barium peaks. In addition, between the histiocytes and the bone a greater concentration of calcium was seen. Because the histiocytes and not the plastic polymer contained barium sulfate, the evidence for this material's biocompatibility is greatly enhanced.




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