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Pracoviště: Department of Operative Dentistry Division of O...

1 záznamů v Medvik Filtry

Článek

UV-Mediated Photofunctionalization of Indirect Restorative Materials Enhances Bonding to a Resin-Based Luting Agent

Ishikawa, Kyoko
Autor Ishikawa, Kyoko Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
Yamauti, Monica
Autor Yamauti, Monica Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan Department of Restorative Dentistry, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Sapporo 001-0012, Japan
Tichy, Antonin
Autor Tichy, Antonin Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague, Karlovo namesti 32, Prague 121 11, Czech Republic
Ikeda, Masaomi
Autor Ikeda, Masaomi Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan Oral Prosthetic Engineering, Graduate School of Medical and Dental Sciences and Technology, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
Ueno, Takeshi
Autor Ueno, Takeshi Department of Removable Partial Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
Wakabayashi, Noriyuki
Autor Wakabayashi, Noriyuki Department of Removable Partial Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
Thanatvarakorn, Ornnicha
Autor Thanatvarakorn, Ornnicha Faculty of Dentistry, Bangkok Thonburi University, 16/10 Taweewatana, Bangkok 10170, Thailand
Prasansuttiporn, Taweesak
Autor Prasansuttiporn, Taweesak Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Center of Excellence in Materials Science and Technology, Chiang Mai University, T. Suthep, A. Muang, Chiang Mai 50200, Thailand
Klein-Junior, Celso Afonso
Autor Klein-Junior, Celso Afonso Department of Operative Dentistry, Lutheran University of Brazil, 301, Cachoeira do Sul, Canoas, RS 96501-595, Brazil
Takahashi, Akifumi
Autor Takahashi, Akifumi General Dentistry 1, The Nippon Dental University Hospital, 2-3-16 Fujimi, Chiyoda-ku, Tokyo 102-8158, Japan

BioMed research international. 2021 ; 2021 (-) : 9987860. [pub] 20210529

Biomed Res Int
ISSN 2314-6141
Medvik
Zdroj

Purpose: The potential of UV-mediated photofunctionalization to enhance the resin-based luting agent bonding performance to aged materials was investigated. Methods: Sixty samples of each material were prepared. Yttria-stabilized zirconia (YZr) and Pd-Au alloy (Pd-Au) plates were fabricated and sandblasted. Lithium disilicate glass-ceramic (LDS) was CAD-CAM prepared and ground with #800 SiC paper. Half of the specimens were immersed in machine oil for 24 h to simulate the carbon adsorption. Then, all of the specimens (noncarbon- and carbon-adsorbed) were submitted to UV-mediated photofunctionalization with a 15 W UV-LED (265 nm, 300 mA, 7692 μW/cm2) for 0 (control groups), 5, and 15 min and subjected to contact angle (Ɵ) measurement and bonded using a resin cement (Panavia™ V5, Kuraray Noritake, Japan). The tensile bond strength (TBS) test was performed after 24 h. The Ɵ (°) and TBS (MPa) data were statistically analyzed using two-way ANOVA and Bonferroni correction tests (α = 0.05). Results: In the carbon-adsorbed groups, UV-mediated photofunctionalization for 5 min significantly decreased Ɵ of all materials and increased TBS of YZr, and UV for 15 min significantly increased the TBS of LDS and Pd-Au. In noncarbon-adsorbed groups, UV-photofunctionalization did not significantly change the Ɵ or TBS except YZr specimens UV-photofunctionalized for 15 min. Conclusion: UV-mediated photofunctionalization might have removed the adsorbed hydrocarbon molecules from the materials' surfaces and enhanced bond strengths of Panavia™ V5 to YZr, LDS, and Pd-Au. Additionally, UV-mediated photofunctionalization improved the overall TBS of YZr. Further investigation on the optimum conditions of UV photofunctionalization on indirect restorative materials should be conducted.

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