INVITRO ABRASION RESISTANCE AND HARDNESS OF GLASS-IONOMER CEMENTS

被引：27

作者：

FORSS, H

SEPPA, L

LAPPALAINEN, R

机构：

[1] Faculty of Dentistry University of Kuopio P.O.B. 6

来源：

DENTAL MATERIALS | 1991年 / 7卷 / 01期

关键词：

D O I：

10.1016/0109-5641(91)90024-S

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of this study was to compare the abrasion resistance and surface hardness of four glass-ionomer cements. The effects of hydration and dehydration on wear resistance were also studied. A composite material, enamel, and dentin were used as controls. For wear testing, the specimens were abraded on abrasion discs under water. All glass ionomers showed greater wear than composite and enamel, but less wear than dentin. Ketac-Fil showed the highest and Ketac-Silver the lowest wear resistance. Hydration or dehydration of the specimens did not significantly influence the wear rate of conventional glass ionomers, but the wear resistance of Ketac-Silver was increased due to dehydration. Ketac-Fil had the highest and Ketac-Silver the lowest hardness rating of the glass ionomers. The cermet material did not show abrasion resistance better than that of the conventional glass ionomers, as has previously been suggested.

引用

页码：36 / 39

页数：4

共 22 条

[1]

Causton, The Physico-mechanical Consequences of Exposing Glass Ionomer Cements to Water During Setting, Biomaterials, 2, pp. 112-115, (1981)

[2]

Engelsmann, Kocher, Albers, Vergleichende Langzeituntersuchung über die Füllungsmaterialien Ketac Fil und Amalgam an Milchzähnen, Dtsch Zahnärztl Z, 43, pp. 291-294, (1988)

[3]

Harrison, Draughn, Abrasive Wear, Tensile Strength, and Hardness of Dental Composite Resins—Is There a Relationship?, J Prosthet Dent, 36, pp. 395-398, (1976)

[4]

Harrison, Moores, Influence of Abrasive Particle Size and Contact Stress on the Wear Rate of Dental Restorative Materials, Dent Mater, 1, pp. 15-18, (1985)

[5]

Knibbs, Glass Ionomer Cement: 10 Years of Clinical Use, J Oral Rehabil, 15, pp. 103-115, (1988)

[6]

Lappalainen, Yli-Urpo, Seppa, Wear of Dental Restorative and Prosthetic Materials in vitro, Dent Mater, 5, pp. 35-37, (1989)

[7]

McCabe, In vitro Wear Testing of Composite Resins, Posterior Composite Resin Dental Restorative Materials, pp. 319-330, (1985)

[8]

McCabe, Smith, A Method for Measuring the wear of Restorative Materials in vitro, Br Dent J, 151, pp. 123-126, (1981)

[9]

McKinney, Antonucci, Rupp, Wear and Micro-hardness of Glass-ionomer Cements, J Dent Res, 66, pp. 1134-1139, (1987)

[10]

McKinney, Antonucci, Rupp, WEar and Micro-hardness of a Silver-sintered Glass-ionomer Cement, J Dent Res, 67, pp. 831-835, (1988)

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