Limited evidence exists that glass ionomer restorations in permanent teeth offer a lower risk of developing carious lesions at margins compared with amalgam restorations

Abstract

A critical summary of Mickenautsch S, Yengopal V, Leal SC, Oliveira LB, Bezerra AC, Bonecker M. Absence of carious lesions at margins of glass-ionomer and amalgam restorations: a meta-analysis. Eur J Paediatr Dent 2009;10(1):41–46.