Effect of dentin pretreatment with hesperidin, cranberry, or grape seed extracts on microshear bond strength of conventional flowable composite bonded with universal adhesive: In-vitro study

Authors

1 Lecturer at conservative Dentistry Department, Faculty of Oral and Dental Medicine, Ahram Canadian University (ACU), Industrial Zone, 6th of October City, Giza, Egypt.

2 Lecturer at Biomaterial Department, Faculty of Oral and Dental Medicine, Ahram Canadian University (ACU), Industrial Zone, 6th of October City, Giza, Egypt

3 Associate Professor at conservative Dentistry Department, Faculty of Dentistry, AlRyada University for Science and Technology (RST), El Sadat City, Elmenofia Governorate, Egypt.

Abstract

INTRODUCTION: Improving dentin bond strength to universal adhesives could be a controversial issue due to unavoidable hydrolytic and enzymatic degradation potentials. Therefore, novel natural remedies are needed to increase the ability of dentin collagen to resist degradation which may enhance resin composite/dentin bond strength. This study aims to test the microshear bond strength (μSBS) of conventional flowable composite material adhered to dentin with universal adhesive after pretreatment with hesperidin, cranberry, or grape seed extract (GSE). MATERIALS AND METHODS: Forty permanent molars were selected for the current study. Four groups (A) have been assorted (n=10) considering the type of dentin pre-treatment used where Group A1; dentin pretreatment was done with a 5% hesperidin extract. While Group A2; dentin was treated with 6.5% cranberry extract. Moreover, in Group A3; dentin pretreatment was done with 6.5% GSE. Group A4; no pre-treatment (control) was done. Afterward, Universal light cure dental adhesive was applied in self-etch mode, and cylinders of conventional flowable resin composite were made using a polyethylene tube. All the samples were then subjected to thermocycling and tested for microshear bond strength. The bond strengths were statistically analyzed using One-way analysis of variance (ANOVA) and Tukey’s post hoc tests. RESULTS: Results recorded a statistically significant difference between different pretreatment options. The highest microshear bond strength was recorded for hesperidin while the lowest was for the cranberry group. CONCLUSION: Natural dentin bio-modifiers could be a substitutional therapy to strengthen flowable composite adhesion with universal adhesive to dentin.

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