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J Dent Res 36(4): 602-612, 1957
© 1957 International and American Associations for Dental Research
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TISSUE RESPONSE TO AlRBRASIVE POWDER, TO PULVERIZED ENAMEL AND DENTIN

DONALD A. KERR D.D.S. M.S.1, SIGURD RAMFJORD L.D.S., PH.D.1, and GRETA GRAPE-RAMFJORD L.D.S., M.S.1

1 University of Michigan School of Dentistry, Department of Oral Pathology and Periodontia, Ann Arbor, Mich.

1. New and used airbrasive powder initiated a mild proliferative response in the peritoneal cavity of guinea pigs and in gingival tissues of rabbits. It cannot, therefore, be characterized as being inert, and precautions should be taken against inhaling it or introducing it into oral tissues.

2. Powdered enamel and dentin primarily excited an absorptive response in the intraperitoneal cavity of guinea pigs; but a slight fibrosis also resulted from these dusts. It appears undesirable to inhale them in extensive amounts over many years.

Submitted on August 25, 1956






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