Effect of Adhesive Application Method on the Enamel Bond Durability of a Two-Step Adhesive System Utilizing a Universal Adhesive-Derived Primer

This study aimed to evaluate the effect of the adhesive application method on the durability of the enamel bond and the thickness of the adhesive layer. A new-generation two-step universal adhesive system, G2-Bond Universal, and two conventional two-step adhesive systems were utilized. The shear bon...

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Bibliographic Details
Published inApplied sciences Vol. 11; no. 16; p. 7675
Main Authors Takamizawa, Toshiki, Yokoyama, Munenori, Sai, Keiichi, Shibasaki, Sho, Barkmeier, Wayne W., Latta, Mark A., Tsujimoto, Akimasa, Miyazaki, Masashi
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 20.08.2021
Subjects
Acids
adhesive layer thickness
Adhesive strength
Adhesives
Bond strength
Bonding agents
Bonding strength
Composite materials
Crack propagation
Durability
Enamel
enamel bond durability
Etching
Failure
Hydrophobicity
Methods
Morphology
Teeth
Thermal cycling
Thickness
two-step adhesive system
universal adhesive-derived primer
United States > US
Japan
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Summary:This study aimed to evaluate the effect of the adhesive application method on the durability of the enamel bond and the thickness of the adhesive layer. A new-generation two-step universal adhesive system, G2-Bond Universal, and two conventional two-step adhesive systems were utilized. The shear bond strength to bovine enamel was measured after thermal cycling in both etch-and-rinse and self-etch modes. Fifteen specimens were divided into three groups as follows: Group I, wherein a strong air stream was applied over the bonding agent for 5 s; Group II, wherein a gentle air stream was applied over the bonding agent for 5 s; and Group III, which was prepared as in Group II, followed by the application of a second layer of the bonding agent and a gentle air stream for 5 s. The durability of the enamel bond and thickness of the tested adhesives were influenced by the application method in both etching modes. The application method used in Group II appeared to be most suitable in terms of the bonding of the adhesives to the enamel. The new-generation two-step self-etch adhesive, comprising a universal adhesive-derived primer and a hydrophobic bonding agent, showed superior bond performance to the conventional two-step adhesive systems.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11167675