This study tested the bond strength of three types of bonding agents to ground and unground enamel, and examined the specimens after testing to see where they had failed. Seventytwo bovine incisors were used in the research. Half of the teeth were assigned to the Ground Enamel Group and were prepared by grinding the facial to produce a flat surface for bonding. The other 32 teeth (the Unground ...

Length of resin tags yielded by utilization of an one-step conventional adhesive system and self-etching adhesive system on unground enamel was observed. In study Groups I and III, the enamel surface was etched for 60 seconds with 35% phosphoric acid gel and adhesive systems PQ1 (Ultradent Products, Inc) and Adper Prompt L Pop (3M/ESPE) were applied. Adper Prompt L Pop (3M/ESPE) was also applie...

statement of problem: following the increasing use of composites in restoring anterior and posterior teeth, problems due to its technique sensitivity have become a major concern. one of these problems is the possibility of contamination of dentin with saliva, blood and/or gingival fluid in different stages of bonding procedure, even with application of different methods of isolation. however, b...

statement of the problem: monomer viscosity and solvent evaporation can be affected by the adhesive system temperature. higher temperature can elevate the vapor pressure in solution and penetration of adhesive in smear layer. bonding mechanism may be influenced by the adhesive temperature. purpose: this study aimed to evaluate the effect of pre-heating on shear bond strength of etch-and-rinse a...

conclusion both adhesive systems showed good biological compatibility. background to investigate pulp response to the application of two types adhesive systems (total-etch and self-etch) in human premolar teeth. materials and methods cavities limited to enamel walls in all margins with 2.5 mm depth were prepared on buccal surfaces of thirty three human premolars. the cavities were treated with ...

Objective: To compare the micro-shear bond strengths of 3 different universal adhesives to 2 calcium silicate-based materials. Methods: A hole was prepared in center top surfaces 60 cylindrical acrylic blocks, and blocks were randomly divided into groups (n=30) according biomaterial filling; NeoMTA Plus (Avalon Biomed Inc. Bradenton, FL, USA) ProRoot MTA (Dentsply Tulsa, OK, USA). Biomaterials ...

OBJECTIVE To test the hypothesis that the quality of the dentinal sealing provided by two-step etch-and-rinse adhesives cannot be altered by the addition of an extra layer of the respective adhesive or the application of a more hydrophobic, non-solvated resin. MATERIAL AND METHODS full-crown preparations were acid-etched with phosphoric acid for 15 s and bonded with Adper Single Bond (3M ESPE...

Objective: The aim of the present study was to compare the effect of pre-treating dentin with chlorhexidine, at concentrations of 0.2% and 2%, and remineralizing paste containing CPP-ACP (MI Paste - GC) on the bond strength of adhesive systems. Material and methods: In total, 80 slides of dentin were used. These slides were 2 mm thick and were obtained from bovine incisors. Standard cavities we...

The aim of this in vitro study was to compare the degradation of resin-dentin bonds of an etch-and-rinse adhesive system to primary and permanent teeth. Flat superficial coronal dentin surfaces from 5 primary second molars and 5 permanent third molars were etched with phosphoric acid and bonded with an adhesive system (Adper Single Bond 2, 3M ESPE). Blocks of resin composite (Z250, 3M ESPE) wer...

Objective: The current study aimed to evaluate the effect of diode laser irradiation (980 nm) and warm air drying(50°C) on shear bond strength between Lithium di-silicate (IPS e.max; Ivoclar) human dentin using both(Etch & Rinse) adhesive, Adper™ Single Bond 2 (3M ESPE) (Self-etch) UniversalTM(3M before adhesive polymerization. Material Methods: 54 sound lower molars were sectioned toobtain...