Retrograde amalgam filling: a scanning electron microscopic study
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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
© 1975 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
