Mohamed, M., hanno, A., Abdelkader, S., Zeitoun, S. (2025). IN VITRO EVALUATION OF MICROLEAKAGE AND SHEAR BOND STRENGTH OF SELF-ADHESIVE HYBRID COMPOSITES IN PRIMARY MOLARS. Alexandria Dental Journal, 50(2), 226-234. doi: 10.21608/adjalexu.2025.326823.1543
Mahmoud Magdy Mohamed; azza hanno; Sally Mohamed Abdelkader; sara Ibrahim Mohamed Zeitoun. "IN VITRO EVALUATION OF MICROLEAKAGE AND SHEAR BOND STRENGTH OF SELF-ADHESIVE HYBRID COMPOSITES IN PRIMARY MOLARS". Alexandria Dental Journal, 50, 2, 2025, 226-234. doi: 10.21608/adjalexu.2025.326823.1543
Mohamed, M., hanno, A., Abdelkader, S., Zeitoun, S. (2025). 'IN VITRO EVALUATION OF MICROLEAKAGE AND SHEAR BOND STRENGTH OF SELF-ADHESIVE HYBRID COMPOSITES IN PRIMARY MOLARS', Alexandria Dental Journal, 50(2), pp. 226-234. doi: 10.21608/adjalexu.2025.326823.1543
Mohamed, M., hanno, A., Abdelkader, S., Zeitoun, S. IN VITRO EVALUATION OF MICROLEAKAGE AND SHEAR BOND STRENGTH OF SELF-ADHESIVE HYBRID COMPOSITES IN PRIMARY MOLARS. Alexandria Dental Journal, 2025; 50(2): 226-234. doi: 10.21608/adjalexu.2025.326823.1543
IN VITRO EVALUATION OF MICROLEAKAGE AND SHEAR BOND STRENGTH OF SELF-ADHESIVE HYBRID COMPOSITES IN PRIMARY MOLARS
1pediatric dentistry and dental public health department, faculty of dentistry, alexandria university, alexandria, egypt
2Dental Material Department ,Faculty of Dentistry-Alexandria University, Alexandria, Egypt
3Lecturer of Pediatric Dentistry and Dental Public Health Department of Pediatric Dentistry and Dental Public Health Faculty of Dentistry -Alexandria University
Abstract
Introduction: Recently the self-adhesive hybrid composite, Surefil One™ was introduced as a “bioactive material”. Objectives: To assess microleakage and shear bond strength of Surefil One™ in comparison to Cention forte and resin-based composite used as restorations in primary molars. Methodology: 66 sound primary molars were randomly divided into two main groups (groups A and B). Each group was subdivided randomly into three equal subgroups. Groups (IA, IIA, and IIIA): were assigned to the microleakage evaluation test. A standardized box was prepared and restored with Surefil One™ (IA), Cention Forte (IIA) and Spectra™ ST HV (IIIA). Teeth were thermocycled, immersed into methylene blue solution for 24 hours, sectioned longitudinally, and examined under a stereomicroscope. Groups (IB, IIB, and IIIB): were assigned for the shear bond strength test. Surefil One™ (IB), Cention Forte (IIB) and Spectra™ ST HV (IIIB) were applied on the grounded buccal surface. A universal testing machine was used to assess the shear bond strength, and a stereomicroscope was used to evaluate mode of failure in each specimen. Kruskal Wallis test, One Way ANOVA were used to compare microleakage, shear bond strength respectively. Results: Penetration percentage was recorded in the Cention forte specimens (22.87%), followed by Spectra™ ST HV (50.00%), whereas Surefil One scored (65.71%) p < 0.0001. Cention forte samples showed shear bond strength (9.89 ±3.24 MPa), followed by Surefil One (4.57 ±1.98 MPa), then Spectra™ ST HV (4.47 ±2.20 MPa) p < 0.0001. Conclusion: Cention forte demonstrated less leakage and more retention than Spectra™ ST HV and Surefil One.
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