CAD/CAM Surface Treatment And Type Of Adhesive Affect CAD/CAM Composite Bonding To Dentin | ||||
Egyptian Dental Journal | ||||
Article 11, Volume 67, Issue 3 - Serial Number 4, July 2021, Page 2711-2723 PDF (1.22 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/edj.2021.68272.1554 | ||||
View on SCiNiTO | ||||
Authors | ||||
Lina Samy 1; Aya Samaha 2; Farid El-Askary3 | ||||
1Demonstrator, and Master’s Degree Student, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University | ||||
2Lecturer, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University. | ||||
3Professor, Operative Dentistry Department, Faculty of Dentistry, Ain Shams University | ||||
Abstract | ||||
Objective: To evaluate the effect of CAD/CAM surface treatments and different adhesives on the shear bond strength (SBS) of a CAD/CAM composite to dentin. Materials and Methods: In total, 120-flat dentin surfaces were prepared, and divided into 12 groups (n=10) according to: 1- CAD/CAM surface treatment, and 2: Type of adhesive. A total of 120 CAD/CAM composite rods (2mmx2mmx4mm) were prepared, and sandblasted. The rods were left without further treatment, ultrasonically cleaned in distilled water, or acid etched using 35% phosphoric acid. The dual- and self-cured adhesives were applied to dentin, in etch-and-rinse or self-etching modes and the rods were cemented using dual-cured resin cement. The SBS test was run at a crosshead speed of 0.5 mm/min until failure. Data were analyzed using Two-Way ANOVA/Tukey test, P=0.05. Results: Factors “surface treatment”, “adhesive” and “surface treatment x adhesive” had significant effect on SBS (P0.05). Sandblasting had the highest significant SBS among surface treatments (P<0.05). Self-cured adhesive showed higher SBS compared to dual-cured adhesive in etch-and-rinse mode (P<0.05). Mixed failure was the predominate failure (59.2%). Conclusion: Sandblasting improved the SBS of a CAD/CAM composite to dentin. The use of dual-cured universal and self-cured adhesives in their simplified self-etching approach is preferrable. | ||||
Keywords | ||||
CAD/CAM composite; Surface treatments; Universal adhesive; Self-cured adhesive; Shear bond strength | ||||
Statistics Article View: 214 PDF Download: 306 |
||||