Physical properties of different self-adhesive resin cements and their shear bond strength on lithium disilicate ceramic and dentin

Hye-Jin Shin; Chang-Kyu Song; Se-Hee Partk; Jin-Woo Kim; Kyung-Mo Cho

doi:10.5395/JKACD.2009.34.3.184

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Shin, Song, Partk, Kim, and Cho: Physical properties of different self-adhesive resin cements and their shear bond strength on lithium disilicate ceramic and dentin

Original Article

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2009; 34(3): 184-191.

Published online: 31 May 2009

DOI: https://doi.org/10.5395/JKACD.2009.34.3.184

Physical properties of different self-adhesive resin cements and their shear bond strength on lithium disilicate ceramic and dentin

Hye-Jin Shin¹, Chang-Kyu Song², Se-Hee Partk², Jin-Woo Kim², Kyung-Mo Cho²

¹Department of Dentistry, College of Medicine, Ajou University, Korea.

²Department of Conservative Dentistry, College of Dentistry, Kangnung National University, Korea.

Corresponding Author: Kyung-Mo Cho. Department of Conservative Dentistry, College of Dentistry, Kangnung National University, 123 Chibyon-dong, Gangwon-do, 210-702, Korea. Tel: 82-33-640-3156, Fax: 82-33-642-6410, drbozon@kangnung.ac.kr

Received 22 September 2008 Revised 9 April 2009 Accepted 14 April 2009

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study was to evaluate the physical properties of different self-adhesive resin cements and their shear bond strength on dentin and lithium disilicate ceramic and compare these result with that of conventional resin cement. For this study, four self-adhesive resin cements (Rely-X Unicem, Embrace Wetbond, Mexcem, BisCem), one conventional resin cement (Rely-X ARC) and one restorative resin composite (Z-350) were used. In order to evaluate the physical properties, compressive strength, diametral tensile strength and flexural strength were measured. To evaluate the shear bond strength on dentin, each cement was adhered to buccal dentinal surface of extracted human lower molars. Dentin bonding agent was applied after acid etching for groups of Rely-X ARC and Z-350. In order to evaluate the shear bond strength on ceramic, lithium disilicate glass ceramic (IPS Empress 2) disks were prepared. Only Rely-X ARC and Z-350 groups were pretreated with hydrofluoric acid and silane. And then each resin cement was adhered to ceramic surface in 2 mm diameter. Physical properties and shear bond strengths were measured using a universal testing machine.

Results were as follows

1. BisCem showed the lowest compressive strength, diametral tensile strength and flexural strength. (P<0.05)

2. Self-adhesive resin cements showed significantly lower shear bond strength on the dentin and lithium disilicate ceramic than Rely-X ARC and Z-350 (P<0.05)

In conclusion, self-adhesive resin cements represent the lower physical properties and shear bond strength than a conventional resin cement.

Keywords: Self-adhesive resin cement, physical properties of resin cement, shear bond strength

Figures and Tables

Figure 1

Schematic drawing of moulds

Table 1

Composition of materials used in this study

GDPM ; Glycerol dimethacrylate dihydrogen phosphate

Bis-GMA ; 2,2 -bis[4-(2-hydroxy-3-methacrylyloxypropoxy)phenyl]propane

TEGDMA ; Triethyleneglycol dimethacylate

UDMA ; Urethane dimethacrylate

Table 2

Handling methods of the resin cement

Table 3

Physical properties of resin cements

Groups with the same superscripts are not statistically significant.

Table 4

Shear bond strength of resin cements on dentin

Groups with the same superscripts are not statistically significant.

Table 5

Shear bond strength of resin cements on ceramic

Groups with the same superscripts are not statistically significant.

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