A comparison of glass-ionomer cement and calcium hydroxide liners in amalgam restorations

Jaime Robchinsky, Kevin J Donly

Research output: Contribution to journalArticlepeer-review

Abstract

This study compared the caries inhibition and microleakage of two liners under amalgam restorations. Thirty-two molars received mesio-occlusal and disto-occlusal Class II cavity preparations. Calcium hydroxide was randomly placed as a liner in one preparation of each tooth and glass-ionomer cement liner was placed in the other. Amalgam restorations were placed. Teeth were axially loaded and an acid-protective varnish was placed. Teeth were placed into artificial saliva for 3 months, thermocycled, and cycled through a caries challenge. Sections were obtained from 20 teeth and photographed under polarized light. The remaining teeth were placed in 2% basic fuchsin and sectioned. A t-test indicated that restorations with glass-ionomer cement liners exhibited significantly less demineralization and microleakage than did restorations with calcium hydroxide liners.

Original languageEnglish (US)
Pages (from-to)379-383
Number of pages5
JournalInternational Journal of Periodontics and Restorative Dentistry
Volume13
Issue number4
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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