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The use of liners under amalgam restorations: an in vitro study on marginal leakage.
Quintessence Int. 1998 Oct; 29(10):637-42.QI

Abstract

OBJECTIVE

Marginal leakage of amalgam restorations may lead to secondary caries and pulpal damage. The purpose of this study was to determine the effect various cavity liners might have on microleakage.

METHOD AND MATERIALS

Mesio-occlusodistal amalgam restorations with margins on enamel and dentin were treated with different liner materials (an adhesive system, a topical fluoride gel, a cavity varnish, and a glass-ionomer cement) in vitro. Following restoration, the teeth were submitted to thermocycling in a stained solution and sectioned to allow assessment of microleakage.

RESULTS

On enamel, the control group (no liner) and the glass-ionomer-lined group had equivalent leakage scores and were superior to every other group. On dentin, only the glass-ionomer specimens had superior performance. The cavity varnish and fluoride-lined specimens exhibited the highest leakage scores.

CONCLUSION

The use of liners does not reduce microleakage on amalgam restorations when the cavity margins remain on enamel. On dentin margins, a glass-ionomer liner can reduce microleakage.

Authors+Show Affiliations

Department of Stomatology, Federal University of Santa Catarina, Medical Center, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

9922761

Citation

Marchiori, S, et al. "The Use of Liners Under Amalgam Restorations: an in Vitro Study On Marginal Leakage." Quintessence International (Berlin, Germany : 1985), vol. 29, no. 10, 1998, pp. 637-42.
Marchiori S, Baratieri LN, de Andrada MA, et al. The use of liners under amalgam restorations: an in vitro study on marginal leakage. Quintessence Int. 1998;29(10):637-42.
Marchiori, S., Baratieri, L. N., de Andrada, M. A., Monteiro Júnior, S., & Ritter, A. V. (1998). The use of liners under amalgam restorations: an in vitro study on marginal leakage. Quintessence International (Berlin, Germany : 1985), 29(10), 637-42.
Marchiori S, et al. The Use of Liners Under Amalgam Restorations: an in Vitro Study On Marginal Leakage. Quintessence Int. 1998;29(10):637-42. PubMed PMID: 9922761.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The use of liners under amalgam restorations: an in vitro study on marginal leakage. AU - Marchiori,S, AU - Baratieri,L N, AU - de Andrada,M A, AU - Monteiro Júnior,S, AU - Ritter,A V, PY - 1999/1/29/pubmed PY - 1999/1/29/medline PY - 1999/1/29/entrez SP - 637 EP - 42 JF - Quintessence international (Berlin, Germany : 1985) JO - Quintessence Int VL - 29 IS - 10 N2 - OBJECTIVE: Marginal leakage of amalgam restorations may lead to secondary caries and pulpal damage. The purpose of this study was to determine the effect various cavity liners might have on microleakage. METHOD AND MATERIALS: Mesio-occlusodistal amalgam restorations with margins on enamel and dentin were treated with different liner materials (an adhesive system, a topical fluoride gel, a cavity varnish, and a glass-ionomer cement) in vitro. Following restoration, the teeth were submitted to thermocycling in a stained solution and sectioned to allow assessment of microleakage. RESULTS: On enamel, the control group (no liner) and the glass-ionomer-lined group had equivalent leakage scores and were superior to every other group. On dentin, only the glass-ionomer specimens had superior performance. The cavity varnish and fluoride-lined specimens exhibited the highest leakage scores. CONCLUSION: The use of liners does not reduce microleakage on amalgam restorations when the cavity margins remain on enamel. On dentin margins, a glass-ionomer liner can reduce microleakage. SN - 0033-6572 UR - https://www.unboundmedicine.com/medline/citation/9922761/The_use_of_liners_under_amalgam_restorations:_an_in_vitro_study_on_marginal_leakage_ DB - PRIME DP - Unbound Medicine ER -