Effect of Natural Cross-Linkers on Shear Bond Strength to Dentin After Storage in Different Media

Abstract

Objectives: This study was designed to evaluate the effect of natural cross linkers (Propolis and Hesperidin) on shear bond strength (SBS) to dentin after storage in different media. Materials and Methods: Ninety extracted molars were used and divided into three main groups according to dentin surface treatment (n=30) where, A1: treated with Propolis, A2: treated with Hesperidin and A3: receive no treatment to serve as a control group. Each group was further subdivided into 3 subgroups (n=10) according to the storage media either stored in Acids (B1) or stored in Artificial saliva (B2) or stored in distilled Water (B3). The shear bond strength (SBS) was determined using a universal testing machine. Results: The dentin specimens treated with Propolis showed significantly highest SBS. Conclusion: Both Propolis and Hesperidin cross linking agents are considered beneficial in improving bonding to dentin, though Propolis was much more effective. Storage media has deteriorating effect on resin-dentin shear bond strength.

Bonding performance of self adhesive flowable composite to dentin pretreated with four different natural matrix metalloproteinases inhibitors

“…The alleged action of this natural agent in protecting collagen against degradation is inhibition of MMPs and stabilization of the collagenous matrix. (33) For dissolving the natural products used in the present study, ethanol was the best choice. Concerning proanthocyanidin; the stability of most cations was found to be high in either methanol or ethanol, and both were found to be more effective than water.…”