Objectives . The purpose of this study was to investigate, in dental neat resins, the effect of adding hyperbranched polymers (HBPs) on polymerization contraction ( C ), degree of conversion…
Objectives . To evaluate the effect of instrument compliance on the polymerization shrinkage stress measurements of dental composites. Materials and methods . The contraction strain and stress of composites during…
Objectives . Shrinkage stress is still considered to be a major drawback of resin-based composite materials. It was claimed that resin systems based on the SDR™ technology (Stress Decreasing Resin)…
Objectives . The aim of this study was to examine microleakage at the interface between pit-and-fissure sealants and enamel using micro-CT. Materials and methods . Six extracted intact human molars…
Objectives . Assess patterns of clinical change observed from USPHS direct evaluation categories for pooled results of 10 clinical trials for Class I and II posterior composite restorations monitored up…
Introduction . Recently, composites contaning monomers alternative to conventional dimetacrylates appeared on the market. According to the manufacturers, these new composites show lower volumetric shrinkage, which would lead to lower…
Objectives . During its in vivo development, dental bonding is always under polymerization contraction stress (PCS) when there is cure-induced shrinkage and the volume change of restoration is constrained. This…
Objectives . Lucirin-TPO (L) has been introduced in some dental resin composites for aesthetic reasons as well as to increase polymerization efficiency. However, its efficiency and potential use in photoactive…
Objectives . To evaluate the effect of four collagen cross-linking agents, Glutaraldehyde (GD), Grape Seed Extract (GSE), Genipin (GE) and Tannic Acid (TA) on the Reduced Modulus of Elasticity (Er)…
Abstract One often alleges that laboratory bond-strength testing cannot predict clinical effectiveness of adhesives. Major argument to sustain this claim is the wide variation in bond-strength values recorded for one…
Objectives . Polymerization stress in dental composites remains a concern in restorative dentistry. The objective of this study was to evaluate the influence of inorganic fraction ( F i )…
Objectives . To evaluate the effect of the ceramic material and connector size on the fracture load and fracture behavior of fixed partial dentures (FPDs). Materials and methods . Five…
Objectives . The purpose of this study was to evaluate, by means of tensile bond strength (TBS) test, the influence of Mefp-1-based peptides chain configuration as well as DOPA aminoacid…
Abstract Objectives The objective of this manuscript is to outline the relationship between bond strength tests of adhesive materials and other in vitro phenomena by reviewing the literature generated over…
Abstract Objective The goal of this paper is to undertake a literature search collecting all dentin bond strength data obtained for six adhesives with four tests (shear, microshear, tensile and…
Abstract Dental adhesives are usually tested in shear or tension even though neither of these approaches measures the local stress triggering failure. Because the stress level varies extensively over the…
Abstract The objective of this paper is to critically review the literature regarding the mechanics, geometry, load application and other testing parameters of “micro” shear and tensile adhesion tests, and…
Abstract The wetness of dentin surfaces, the presence of pulpal pressure, and the thickness of dentin are extremely important variables during bonding procedures, especially when testing bond strength of adhesive…
