J Korean Acad Conserv Dent.  2009 May;34(3):184-191. 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

• Shin HJ
• Song CK
• Partk SH
• Kim JW
• Cho KM

• KMID: 2176143
• DOI: http://doi.org/10.5395/JKACD.2009.34.3.184

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.

Keyword

Self-adhesive resin cement; physical properties of resin cement; shear bond strength

MeSH Terms

Ceramics
Collodion
Compressive Strength
Dental Porcelain
Dentin
Glass
Humans
Hydrofluoric Acid
Indoles
Lithium
Molar
Piperazines
Resin Cements
Tensile Strength
Ceramics
Collodion
Dental Porcelain
Hydrofluoric Acid
Indoles
Lithium
Piperazines
Resin Cements

Figure

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  Figure 1 Schematic drawing of moulds

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