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Egyptian Dental Journal
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Volume Volume 68 (2022)
Issue Issue 3
July (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 3
Issue 3 - ِJuly (Oral Surgery)
Issue Issue 3
Issue 3 - July (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 3
July (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
Issue Issue 3
July (Conservative Dentistry and Endodontics)
Issue Issue 2
April (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 2
Oral Surgery
Issue Issue 2
April (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 2
Fixed Prosthodontics, Removable Prosthodontics and Dental Materials
Issue Issue 2
Conservative Dentistry and Endodontics
Issue Issue 1
January (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 1
January (Oral Surgery)
Issue Issue 1
January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 1
January (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
Issue Issue 1
January (Conservative Dentistry and Endodontics)
Volume Volume 67 (2021)
Volume Volume 66 (2020)
Volume Volume 65 (2019)
Volume Volume 64 (2018)
Volume Volume 63 (2017)
Volume Volume 62 (2016)
Eltoukhy, R., Gouda, B. (2022). Microtensile Bond Strength of Different Universal Adhesives with /without Acid Etching to Enamel Compared to Two-Step Self-Etch System After Thermal Cycling. Egyptian Dental Journal, 68(3), 2835-2842. doi: 10.21608/edj.2022.129059.2036
Radwa Eltoukhy; Badria Gouda. "Microtensile Bond Strength of Different Universal Adhesives with /without Acid Etching to Enamel Compared to Two-Step Self-Etch System After Thermal Cycling". Egyptian Dental Journal, 68, 3, 2022, 2835-2842. doi: 10.21608/edj.2022.129059.2036
Eltoukhy, R., Gouda, B. (2022). 'Microtensile Bond Strength of Different Universal Adhesives with /without Acid Etching to Enamel Compared to Two-Step Self-Etch System After Thermal Cycling', Egyptian Dental Journal, 68(3), pp. 2835-2842. doi: 10.21608/edj.2022.129059.2036
Eltoukhy, R., Gouda, B. Microtensile Bond Strength of Different Universal Adhesives with /without Acid Etching to Enamel Compared to Two-Step Self-Etch System After Thermal Cycling. Egyptian Dental Journal, 2022; 68(3): 2835-2842. doi: 10.21608/edj.2022.129059.2036

Microtensile Bond Strength of Different Universal Adhesives with /without Acid Etching to Enamel Compared to Two-Step Self-Etch System After Thermal Cycling

Article 9, Volume 68, Issue 3 - Serial Number 5, July 2022, Page 2835-2842  XML PDF (467.72 K)
Document Type: Original Article
DOI: 10.21608/edj.2022.129059.2036
Authors
Radwa Eltoukhyorcid 1; Badria Gouda email orcid 2
1Department of Operative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
2Department of Operative Dentistry, Faculty of Dentistry, Horus University, Damietta, Egypt
Abstract
Purpose: To assess microtensile bond strength of two universal adhesives with/without acid etching to enamel compared to Two-step self-etch system after thermocycling.
Materials and Methods: Fifty freshly extracted sound human third molars were disinfected, decoronated and sectioned mesiodistally to get 100 buccal and lingual halves. Enamel surface was ground by a diamond grit and smoothed with 600-grit silicon-carbide paper. Specimens were assigned into Five groups (n=20): G-Premio bond with/without etching, Single Bond Universal with/without etching and OptiBond XTR. Etching was done by phosphoric acid 37% for 20 seconds followed by rinsing and drying. Each adhesive was applied and then, a block of resin composite was built up. After storage in distilled water into incubator (24 hour /37˚C), half of the specimens of each group (n=10) was thermocycled. All specimens were sectioned into beams 0.9 mm2 to be tested until failure using universal testing machine. Failure mode was assessed with Stereomicroscope. Data were subjected to statistical analysis (p˃0.05).
Results: Universal adhesives with prior etching and Two-step self-etch system revealed microtensile bond strength mean values significantly higher than that of universal adhesives without etching (P0.05). All adhesives showed reduced microtensile bond strength after thermocycling. Mixed failure was predominant in universal adhesives with prior etching and Two-step self-etch system, however adhesive failure was observed with universal adhesives without prior etching.
Conclusions: Universal adhesives with prior etching had considerable improvements on Microtensile bond strength to enamel. Thermocycling negatively affected the bonding performance of universal adhesives to enamel.
Keywords
Universal adhesive; Two-step self-etch; Microtensile bond strength; Thermocycling
Main Subjects
Conservative Dentistry
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