Journal of Oral Tissue Engineering

Microtensile Bond Strength Bonded to Dentin of a Newly Universal Adhesive

Aiichiro KATSUMATA1, Pipop SAIKAEW2, Shihchun Ting2, Tamaki KATSUMATA1, Tomohiro HOSHIKA1, Hidehiko SANO2, and Yoshihiro NISHITANI1

1Department of Restorative Dentistry and Endodontology, Research Field in Dentistry, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
2 Department of Restorative Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan

J Oral Tissue Engin 2017; 15(1): 18-24.

The purpose of this study was to evaluate the microtensile bond strength (&micr;TBS) of an experimental universal adhesive, K5D-01 (K5D, Tokuyama Dental) to dentin and to observe the interfacial micromorphology. K5D is a universal adhesive without the light irradiation during the application process. K5D can be used for various clinical applications such as bonding agents for resin composite, surface treatment agents for resin core materials or resin cements. Scotchbond Universal Adhesive (SBU, 3M ESPE) used as a control material. Flat dentin surfaces of human molars were exposed using #600 SiC paper and bonded with the respective adhesive of each system. After bonding, various resin were built up on the surfaces and cured under two conditions: light condition or dark condition. Dark curing negatively affected the bond strength of SBU. The newly developed universal adhesive K5D-01 was not affected by the curing conditions.

Key words: universal adhesive, dentin, microtensile bond strength