BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES
Ibrahim, N., Samman, M., Fares, H. (2017). BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES. EKB Journal Management System, 63(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 3707-3716. doi: 10.21608/edj.2017.76436
Nady Ibrahim; Muhammad Samman; Hala Fares. "BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES". EKB Journal Management System, 63, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2017, 3707-3716. doi: 10.21608/edj.2017.76436
Ibrahim, N., Samman, M., Fares, H. (2017). 'BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES', EKB Journal Management System, 63(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 3707-3716. doi: 10.21608/edj.2017.76436
Ibrahim, N., Samman, M., Fares, H. BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES. EKB Journal Management System, 2017; 63(Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 3707-3716. doi: 10.21608/edj.2017.76436

BOND STRENGTH OF BULK-FILL COMPOSITE RESINS TO DENTIN WITH DIFFERENT ADHESION APPROACHES

Egyptian Dental Journal
Article 41, Volume 63, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), October 2017, Page 3707-3716  XML PDF (1013.96 K)
Document Type: Original Article
DOI: 10.21608/edj.2017.76436
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Authors
Nady Ibrahim1; Muhammad Samman2; Hala Fares3
1Associate Professor, Operative Dentistry, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt.
2Associate Professor, Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt.
3Assistant Professor, Operative Dentistry, Faculty of Oral and Dental Surgery, Misr University for Science and Technology,
Abstract
Background and aim; Bulk fill resin composites have been proven in several studies to enable restoration in thick layers, up to 4mm, maintaining the mechanical properties and the degree of conversion within the whole increment. This study was designed to evaluate micro tensile bond strength (µTBS) of bulk-fill composite resins to superficial and deep dentin with different adhesion approaches.
Materials and methods; Extracted human premolar teeth (n=24) were used to prepare 120 resin-dentin sticks. Specimens were divided into two main groups according to the type of bulk –fill composite used (Xtra fill & Tetric-N- Ceram). Each main group was subdivided according to the adhesive approach used into (total & self-etch). According to dentin depths each subgroup was further categorized into (superficial and deep). µTBS was evaluated using universal testing machine at a crosshead speed of 0.5 mm/min. Dentin / resin interfaces were assessed by scanning electron microscopy.
Results; The results showed significant (p<0.05) effect of composite and dentin level on µTBS, while the effect of adhesive approach was non-significant (p>0.05).
Conclusion; Xtra-Fill has higher µTBS than Tetric Bulk- fill. Total- etch adhesive system has higher µTBS than self-etch with the superficial dentin. Self-etch adhesive system has higher µTBS than total etch with the deep dentin.
Keywords
Bulk-fill; Dentin; Bond; Adhesive approach
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