PMID: 7026631Nov 1, 1981Paper

The effects of cavity smear layer removal on experimental marginal leakage around amalgam restorations

Journal of Dental Research
A Jodaikin, J C Austin

Abstract

Unvarnished freshly-packed dental amalgam restorations leak initially. However, with time, a marginal seal is usually effected. It is not known whether the smear layer which forms during cavity preparation is associated with this leakage pattern. This study was undertaken to evaluate experimental marginal leakage around amalgam restorations (left in situ for one and 12 wk) which had been placed in cavities prepared with and without removal of the smear layer in vital and devitalized teeth. The cavities were obturated with two types of dental amalgams, a conventional and a dispersed-phase amalgam. The excised teeth restorations were subjected to a fluorescent dye marginal leakage experiment. All of the short-term specimens leaked severely, but some of the long-term specimens displayed significant sealing properties. No significant differences were found between the two types of amalgams. However, the non-vital tooth specimens and cavities without smear layers displayed significantly improved sealing properties.

References

Oct 1, 1978·The Journal of Prosthetic Dentistry·J T Andrews, J H Hembree
Jul 1, 1973·Journal of Dental Research·D B MahlerJ Van Eysden
Mar 1, 1970·Journal of Dental Research·R S Mateer, C D Reitz
Nov 1, 1981·Journal of Oral Rehabilitation·A Jodaikin

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Citations

Mar 1, 1992·Journal of Esthetic Dentistry·C LeelawatT Vijayaraghavan
Oct 30, 1998·Journal of Dentistry·C M KreulenP J Borgmeijer
Mar 14, 2013·BioMed Research International·Jintana SirivarasaiPiyamit Sritara
Sep 1, 1986·Journal of Oral Pathology·A JodaikinP E Cleaton-Jones
Jan 1, 1987·International Endodontic Journal·R S TobiasR M Browne
Aug 1, 1984·Journal of Dental Research·A Jodaikin, E S Grossman
Sep 1, 1988·Journal of Dental Research·M M BarakatR Yamaguchi
Aug 27, 2004·Journal of Endodontics·Emin EsenGülşah Seydaoğlu

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