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Influence of Different Types of Solvents in Adhesives on Dentin Bond Strength

Jihua Chen

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Abstract

【Objective】 To observe the effect of the type of solvent in adhesives on dentin bond strength.【Methods】Superficial occlusal dentins of 12 molars extracted freshly were finished with 600-grit SiC paper under running water.Four adhesives were applied to dentin surfaces according to the manufacturers' instructions.The bonded teeth were sectioned occluso-gingivally into 1.0×1.0×4.0 mm3 serial slabs which were prepared for μTBS.【Results】There was no significant difference between the dentin bond strength of the adhesives with acetone-based solvent [OS(28.65 ± 4.93 MPa),PB(27.12 ± 4.13 MPa)],which were all higher than those of the adhesives with ethanol/water-based solvent [OB(25.36 ± 4.18 MPa),SB(24.25 ± 3.97 MPa)](P0.01).【Conclusion】The type of solvent in adhesives has significant influence on their dentin bond strength.

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【Objective】 To observe the effect of the type of solvent in adhesives on dentin bond strength.【Methods】Superficial occlusal dentins of 12 molars extracted freshly were finished with 600-grit SiC paper under running water.Four adhesives were applied to dentin surfaces according to the manufacturers' instructions.The bonded teeth were sectioned occluso-gingivally into 1.0×1.0×4.0 mm3 serial slabs which were prepared for μTBS.【Results】There was no significant difference between the dentin bond strength of the adhesives with acetone-based solvent [OS(28.65 ± 4.93 MPa),PB(27.12 ± 4.13 MPa)],which were all higher than those of the adhesives with ethanol/water-based solvent [OB(25.36 ± 4.18 MPa),SB(24.25 ± 3.97 MPa)](P0.01).【Conclusion】The type of solvent in adhesives has significant influence on their dentin bond strength.

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Available abstract

【Objective】 To observe the effect of the type of solvent in adhesives on dentin bond strength.【Methods】Superficial occlusal dentins of 12 molars extracted freshly were finished with 600-grit SiC paper under running water.Four adhesives were applied to dentin surfaces according to the manufacturers' instructions.The bonded teeth were sectioned occluso-gingivally into 1.0×1.0×4.0 mm3 serial slabs which were prepared for μTBS.【Results】There was no significant difference between the dentin bond strength of the adhesives with acetone-based solvent [OS(28.65 ± 4.93 MPa),PB(27.12 ± 4.13 MPa)],which were all higher than those of the adhesives with ethanol/water-based solvent [OB(25.36 ± 4.18 MPa),SB(24.25 ± 3.97 MPa)](P0.01).【Conclusion】The type of solvent in adhesives has significant influence on their dentin bond strength.

Key concepts: Dentin, Bond strength, Adhesive, Molar, Acetone, Solvent, Composite material, Materials science

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