Journal of Endodontics
Volume 1, Issue 1 , Pages 28-31, January 1975

Retrograde amalgam filling: a scanning electron microscopic study

  • Richard M. Moodnik, DDS

      Affiliations

    • Corresponding Author InformationRequests for reprints should be directed to Dr. Richard M. Moodnik, Department of Dentistry, Nassau County Medical Center, 2201 Hempstead Turnpike, East Meadow, NY 11554.
    • Dr. Moodnik is the director of the division of endodontics
    • ,
  • Marc H. Levey, DDS

      Affiliations

    • Dr. Levey has completed his residency in endodontics
    • ,
  • Martin A. Besen, BS

      Affiliations

    • Mr. Besen is the director of electron microscopy
    • ,
  • Bernard G. Borden, DMD

      Affiliations

    • Dr. Borden is the chairman of the department of dentistry, Nassau County Medical Center, East Meadow, NY.

New York

The scanning electron microscope was used to examine four retrograde amalgam fillings in three human teeth and an extracted tooth. Micrographs showed large interfaces or defects between the amalgam and the prepared root; the measurements of the defects ranged between 6μ and 150μ. The significance of the defects is unknown.

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 The author thank Lynda Marchese for technical assistance and Drs. Alan Protzell, Harold Kresberg, William Kopp, David Schwartz, and Betram Blum for specimens.

PII: S0099-2399(75)80247-0

doi:10.1016/S0099-2399(75)80247-0

Journal of Endodontics
Volume 1, Issue 1 , Pages 28-31, January 1975

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