Journal of Dental Research, Vol 63, 1090-1092, Copyright © 1984 by International & American Associations for Dental Research Online Journals
Experimental marginal leakage around dental amalgams placed in artificial cavities
A. Jodaikin and E. S. Grossman
Experimental marginal leakage of high- and low-Cu amalgam restorations
placed in acrylic teeth, where the cavities were untreated or painted with
denatured collagen and/or a CaP slurry, was assessed after specimens were
stored in a 1% NaCl solution for ten days and for one yr. All specimens
stored for ten days showed severe marginal leakage. High- and low-Cu
amalgam restorations placed in untreated acrylic teeth cavities formed
seals after a storage period of one yr, indicating that these materials are
able to form a seal without interacting with a natural tooth cavity
interface. Cavities treated with denatured collagen also formed seals in
the long-term group. It was apparent that, when the CaP slurry was used,
generally more leakage resulted after the year's storage period than when
amalgam restorations were placed in uncoated acrylic cavity surfaces or in
those painted with denatured collagen.
