Fuchs, Florian and Westerhove, Sina Maria and Schmohl, Leonie and Koenig, Andreas and Suharbiansah, Rujito Sesariojiwandono Ridho and Hahnel, Sebastian and Rauch, Angelika (2023) Influence of the Application Time of Silane for the Bonding Performance between Feldspar or Lithium Disilicate Ceramics and Luting Resin Composites. JOURNAL OF FUNCTIONAL BIOMATERIALS, 14 (4): 231. ISSN , 2079-4983
Full text not available from this repository. (Request a copy)Abstract
A correct silanization time is essential for successful surface functionalization and sufficient bonding to dental ceramics. The shear bond strength (SBS) of lithium disilicate (LDS) and feldspar (FSC) ceramics and luting resin composite was investigated with respect to different silanization times, taking into account the physical properties of the individual surfaces. The SBS test was performed with a universal testing machine, and the fracture surfaces were evaluated by stereomicroscopy. The surface roughness of the prepared specimens was analyzed after etching. Changes in surface properties due to surface functionalization were evaluated by surface free energy (SFE) via contact angle measurement. Fourier transform infrared spectroscopy (FTIR) was used to determine the chemical binding. The roughness and SBS of the control group (no silane, etched) were higher for FSC than for LDS. Regarding the SFE, the dispersive fraction increased and the polar fraction decreased after silanization. FTIR confirmed the presence of silane on the surfaces. The SBS of LDS showed a significant increase from 5 to 15 s, depending on the silane and luting resin composite. For FSC, cohesive failure was observed for all samples. For LDS specimens, a silane application time of 15 to 60 s is recommended. Based on clinical conditions, no difference between the silanization times was observed for FSC specimens, indicating that etching alone produces sufficient bonding.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SURFACE-ROUGHNESS; COUPLING AGENTS; FT-IR; STRENGTH; ADHESIVE; SILANIZATION; CEMENTS; SHEAR; GLASS; DURABILITY; silanization; etching; shear bond strength; contact angle; roughness; feldspar; lithium disilicate; surface free energy; FTIR; in vitro |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Mar 2024 13:58 |
| Last Modified: | 14 Mar 2024 13:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60118 |
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