Synthesis and characterization of a dental cement based on bioactive glass/zinc oxide modified with organic resin as a novel pulp capping agent.

This study aimed to synthesize and characterize a novel dental pulp capping cement containing bioactive glass (BG)/zinc oxide modified with an organic resin. BG (45S5) with or without ZnO (Zn) and hemaphosphate (HP) combined with a liquid consisting of polyacrylic and itaconic acids (AA) were synthesized and the structural, physical, and mechanical properties were assessed. Hydroxyapatite formation was evaluated by immersion in simulated body fluid.

Comparative evaluation of fiber-reinforced, bulk-fill and conventional dental composites: Physical characteristics and polymerization properties.

Background: Resin composites have various applications. At the same time, they have some drawbacks, such as polymerization shrinkage. Conventional composites are polymerized in 2-mm thick layers.

Effect of Helium Plasma Exposure on Wettability and Shear Bond Strength between the Zirconia Core and Feldspathic Veneering Ceramic: An In Vitro Study.

Introduction: The present study aimed to evaluate the effect of helium plasma treatment on the wettability of zirconia surface and on the shear bond strength between the dental zirconia core and feldspathic veneering ceramic.

Methods: 128 zirconia specimens were prepared, polished, and then divided into four groups: control, Zr, FC, and Zr/FC. In Zr and Zr/FC groups, the zirconia blocks were treated by helium plasma for 60 s.

Repairability of aged dimethacrylate-free ORMOCER-based dental composite resins with different surface roughening methods and intermediate materials.

Statement Of Problem: The repair of damaged composite resin restorations has been recommended as a conservative treatment option. However, a reliable protocol for repairing ORMOCER-based restorations is lacking.

Purpose: The purpose of this in vitro study was to investigate the effect of different surface roughening methods, repair composite resins, and intermediate materials on the repair bond strength of a dimethacrylate-free ORMOCER-based composite resin.

Effect of Different Cavity Lining Techniques on Marginal Sealing of Class II Resin Composite Restorations In Vitro.

This study investigated the effect of different cavity lining techniques on the marginal sealing of Class II composite restorations. A total of 36 human molar teeth, free of caries and fillings, were each prepared with two proximal Class II boxes mesially and distally. In mesial boxes, cavity liners were applied as follows: in group 1, separately cured flowable composite; in group 2, co-cured flowable composite; and in group 3, resin-modified glass ionomer (RMGI).