Abstract Objective Increased tooth fragility after devitalization is commonly observed but there is no definite mechanistic explanation for such phenomenon. Therefore, it is important to analyze more profoundly structural and…
Abstract Objectives Low level light/laser therapy (LLLT) is the direct application of light to stimulate cell responses (photobiomodulation) in order to promote tissue healing, reduce inflammation and induce analgesia. There…
Abstract Objective The objective of this study was to examine the effect different configurations of curing would have on the depth and distribution of the cure within each configuration, for…
Abstract Objective As the first part of a larger study on curing characteristics of a resin-based composite (RBC), the major objectives were to create an energy-hardness relationship (EHR) that relates…
Abstract Objective To investigate contact angle and surface free energy of experimental dental resin composites containing novel delivery systems of polymeric hollow beads and low-surface tension agents after chewing simulation…
Abstract Objective To evaluate the effect of photo-initiator on the degree of conversion (DC) and elution of Bis-GMA and HEMA for 8 one-step adhesive formulations. Methods We used Scotchbond Universal…
Abstract Objectives To assess depth of cure (DOC), degree of conversion (DC), and flexural strength (FS) of several resin composites with low-stress behavior. Methods SonicFill (Kerr), SureFil ® SDR™ (Dentsply),…
Abstract Objectives The aim of this study is to investigate depth dependent changes of polymerization process and kinetics of visible light-curing (VLC) dental composites in real-time. The measured quantity –…
Abstract The effect of sintering conditions and concomitant microstructure of dental zirconia (ZrO 2 ) ceramics on their low-temperature degradation (LTD) behavior remains unclear. Objectives Therefore, their effect on LTD…
Abstract Objectives Endodontic pathogens can penetrate deep into dentinal tubules and therefore survive the chemo-mechanical disinfection procedures. Bacterial penetration has been mainly studies using sliced infected human teeth which, besides…
Abstract Objectives To determine temperature dependence of shrinkage stress kinetics for a set of resin composites formulated with dimethacrylate monomer matrices. Methods Six representative resin composites with a range of…
Abstract Objective The objective of this study was to synthesize and characterize novel star-shaped poly(acrylic acid-co-itaconic acid)s via chain-transfer radical polymerization technique, use these polyacids to formulate the resin-modified glass–ionomer…
Abstract Objectives In order to improve the short-comings of glass ionomers such as polishability and esthetics while preserving their excellent clinical bonding effectiveness, nanofiller technology has been introduced in a…
Abstract Objectives Constituents of dental composites can be released from dental fillings after polymerization. The aim of this study was to examine the time-related elution and breakdown of separable constituents…
Abstract Objective To test the following hypotheses: (1) degree of conversion (DC) and polymerization stress (PS) increase with composite temperature (2) reduced light-exposure applied to pre-heated composites produces similar conversion…
Abstract Objectives A model BisGMA/TEGDMA unfilled resin was utilized to investigate the effect of varied irradiation intensity on the photopolymerization kinetics and shrinkage stress evolution, as a means for evaluation…
Abstract Objectives Calcium phosphate cement (CPC) is promising for dental and craniofacial applications due to its ability to be injected or filled into complex-shaped bone defects and molded for esthetics,…
Graphical abstract Mineral/Matrix ratio (MMR) calculated at the different Raman spectra after principal components analysis. ADH: adhesive; HL: hybrid layer; BHL: bottom hybrid layer; DEN: dentine; PA: phosphoric acid; SB:…
Abstract Objective Polymerization shrinkage developed in vertical and horizontal directions after light activation of light-curing composite restorative materials. The purpose of this study was to examine the effects of vertical…
Abstract Objectives Chipping is the most frequent clinical failure of zirconia crowns. Causes of chipping have not been completely understood and different possible reasons have been considered. The study was…
