CONTEXT The effect of different curing units on bond strength of orthodontic brackets is still unclear when utilizing nanofilled composites in comparison with traditional Transbond-XT. AIM To evaluate the influence of two adhesive promoters and two curing-light units on the shear bond strength (SBS) of orthodontic brackets. SETTINGS AND DESIGN The factors under study were adhesive promoters...

Objectives: The aims of this study were to in vitro evaluate the degree of conversion and the microhardness properties of five bulk fill resin composites; in addition, the performance of two curing lamps, used for composites polymerization, was also analyzed. Materials and Methods: The following five resin-based bulk fill composites were tested: SureFil SDR®, Fill Up!™, Filtek™, SonicFill™, and...

When a quadrant of Class II composite resin restorations shows up on our schedule, do we look forward to that work, or do we feel a small sense of dread? When I adopted the use of a dental microscope 20 years ago in my practice, most of the procedures got better, and eventually some got faster. However, until recently, I was never thrilled with either the clinical outcome or the amount of time ...

AIMS AND OBJECTIVES To compare the microleakage in class II nanocomposite restorations without liner, with resin-modified glass ionomer liner and flowable composite liner. MATERIALS AND METHODS Thirty-six sound premolars extracted for orthodontic reasons were selected and randomly assigned into three groups of 12 teeth each (Group I, II and III). Class II cavities of specified dimensions were...

Background and purpose: Antibacterial properties of restorative materials are of great advantage as they control the progression of tooth decay. The use of self-adhesive composite materials has some benefits such as easier application and reduced treatment time. Because the antibacterial properties of restorative materials can play an important role in preventing secondary decay, especially in ...

The aim of this research was to study the impact using a short fiber-reinforced composite (SFRC) core on fatigue performance and fracture behavior direct large posterior restorations. Moreover, influence consistency (flowable or packable) occlusal coverage assessed. A total 100 intact molars were collected randomly distributed into five groups (n = 20). Deep mesio-occlusal-distal (MOD) cavities...

The late Dr. John Gwinnett, one of the most brilliant and respected members of the dental research and teaching community, often characterized bonding as a chain, a series of links between the restorative material being placed and the tooth tissues.1 And as in a chain, the bond of a restorative material to the tooth substrate is only as strong as its weakest link. Dr. Gwinnett inspired a new ge...

BACKGROUND Flowable haemostatic agents have been shown to be superior to non-flowable agents in terms of haemostatic control and need for transfusion products in patients undergoing cardiac surgery. We investigated the economic impact of the use of a flowable haemostatic agent (Floseal) compared with non-flowable oxidised regenerated cellulose (ORC) agent in primary elective cardiac surgery fro...

PURPOSE As polymerization shrinkage is compensated by flow of the composite, several attempts have been performed for relief of the contraction stresses. The aim of this in vitro study was to evaluate the effect of flowable composite or fiber use under composite restorations on microtensile bond strength of composite to dentin in Class I cavities or flat dentin surfaces. MATERIALS AND METHODS...