Bonding To Zirconia With A Recently Introduced Universal Adhesive. An In-vitro Study | ||||
| Ain Shams Dental Journal | ||||
| Volume 35, Issue 3, September 2024, Page 189-198 PDF (1.08 MB) | ||||
| Document Type: Original articles | ||||
| DOI: 10.21608/asdj.2024.306606.1388 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Sarah Mohammed Abdelmoniem 1; Reham Mohamed Salem 2; Sara Mehanna Foudah  3
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| 1Operative Department, Faculty of Dentistry, Ain Shams University | ||||
| 2Operative Dentistry Department, Faculty of Dentistry, ASU, Cairo | ||||
| 3Fixed Prosthodontics department, Faculty of Dentistry, ASU | ||||
| Abstract | ||||
| Aim: This in vitro study was aimed to evaluate the efficacy of a recently introduced universal adhesive in replacing traditional adhesive promoters for bonding resin to ultra translucent zirconia. Materials and Methods: 8 rectangular disc-shaped ultra translucent zirconia specimens (Katana UTML Kuraray Noritake Dental Inc. Tokyo, Japan) with dimensions of (18 x 10 x 2 mm) were used as bases to attach 56 miniature cylinders of flowable conventional composite material (Polofil NHT Flow, VOCO GmbH, Germany) with a 1 mm diameter. Every zirconia disc served as a substrate for 7composite microtubes. Zirconia plates were divided into 4 groups (2 plates each) according to surface pretreatment as follows: GPI: air abrasion+ Zr primer, GPII: air abrasion+ universal adhesive, GPIII: silica coating+silane and GPIV:silica coating+ universal adhesive. (n=14 each). Using a wire and loop technique, the micro-shear bond strength was evaluated using a universal testing equipment. Failure load (N) was determined, and the failure type was determined when the samples were studied under a stereomicroscope. Data were statistically analyzed by the two-way ANOVA test. Results: GPI was significantly highest mean values for micro-shear bond strength (27.83MPa±2.29) followed by GPIII with less mean values (27.45MPa±3.16) but no significant difference, GPII and GPIV: were significantly lowest mean values of microshear bond strength being (14.77MPa±3) and (5.16MPa±1) respectively. Conclusion: The bond strength decreased significantly when traditional zirconia primers with air abrasion or silica coating were replaced with the tested universal adhesive alone. | ||||
| Keywords | ||||
| Bonding; Zirconia; Universal Adhesives; Air-abrasion; Silica-coating | ||||
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