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Occlusal glass ionomer cermet, resin sandwich and amalgam restorations: a 2-year clinical study.
Am J Dent. 1993 Aug; 6(4):185-8.AJ

Abstract

This study compared the clinical behavior of a glass ionomer silver cermet (Ketac-Silver), a posterior resin composite (Visio-Molar) used with the "sandwich" technique, and a high-copper amalgam (Dispersalloy) for restoring conventional Class I occlusal cavity preparations. Two dentists placed 116 restorations in the posterior permanent teeth of 35 adults treated at a dental hospital. Restorations were assessed at 6-month intervals over 2 years for bulk loss of material and occlusal wear, surface voids, roughness and cracking, surface and marginal staining, and marginal fracture. Losses of material and surface voids were obvious with the cermet material, with surface crazing or cracking being present in 33% of the restorations. The cermet cannot be recommended as a long-term permanent restorative material if the restorations are likely to be subjected to heavy occlusal stresses and abrasive wear.

Authors+Show Affiliations

University of Adelaide, South Australia.No affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

7803005

Citation

Lidums, A, et al. "Occlusal Glass Ionomer Cermet, Resin Sandwich and Amalgam Restorations: a 2-year Clinical Study." American Journal of Dentistry, vol. 6, no. 4, 1993, pp. 185-8.
Lidums A, Wilkie R, Smales R. Occlusal glass ionomer cermet, resin sandwich and amalgam restorations: a 2-year clinical study. Am J Dent. 1993;6(4):185-8.
Lidums, A., Wilkie, R., & Smales, R. (1993). Occlusal glass ionomer cermet, resin sandwich and amalgam restorations: a 2-year clinical study. American Journal of Dentistry, 6(4), 185-8.
Lidums A, Wilkie R, Smales R. Occlusal Glass Ionomer Cermet, Resin Sandwich and Amalgam Restorations: a 2-year Clinical Study. Am J Dent. 1993;6(4):185-8. PubMed PMID: 7803005.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Occlusal glass ionomer cermet, resin sandwich and amalgam restorations: a 2-year clinical study. AU - Lidums,A, AU - Wilkie,R, AU - Smales,R, PY - 1993/8/1/pubmed PY - 1993/8/1/medline PY - 1993/8/1/entrez SP - 185 EP - 8 JF - American journal of dentistry JO - Am J Dent VL - 6 IS - 4 N2 - This study compared the clinical behavior of a glass ionomer silver cermet (Ketac-Silver), a posterior resin composite (Visio-Molar) used with the "sandwich" technique, and a high-copper amalgam (Dispersalloy) for restoring conventional Class I occlusal cavity preparations. Two dentists placed 116 restorations in the posterior permanent teeth of 35 adults treated at a dental hospital. Restorations were assessed at 6-month intervals over 2 years for bulk loss of material and occlusal wear, surface voids, roughness and cracking, surface and marginal staining, and marginal fracture. Losses of material and surface voids were obvious with the cermet material, with surface crazing or cracking being present in 33% of the restorations. The cermet cannot be recommended as a long-term permanent restorative material if the restorations are likely to be subjected to heavy occlusal stresses and abrasive wear. SN - 0894-8275 UR - https://www.unboundmedicine.com/medline/citation/7803005/Occlusal_glass_ionomer_cermet_resin_sandwich_and_amalgam_restorations:_a_2_year_clinical_study_ DB - PRIME DP - Unbound Medicine ER -