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Effects of adhesive temperature on the early and 6-month dentin bonding

Reis, Alessandra ; Klein-Júnior, Celso Afonso ; Accorinte, Maria de Lourdes Rodrigues ; Grande, Rosa Helena Miranda ; Santos, Celso Bilynkievycz dos ; Loguercio, Alessandro D

Journal of dentistry, 2009-10, Vol.37 (10), p.791-798 [Periódico revisado por pares]

England: Elsevier Ltd

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Título:
Effects of adhesive temperature on the early and 6-month dentin bonding
Autor: Reis, Alessandra ; Klein-Júnior, Celso Afonso ; Accorinte, Maria de Lourdes Rodrigues ; Grande, Rosa Helena Miranda ; Santos, Celso Bilynkievycz dos ; Loguercio, Alessandro D
Assuntos: Acetone - chemistry ; Adhesive system ; Adhesives ; Bisphenol A-Glycidyl Methacrylate - chemistry ; Bond strength ; Dental Bonding ; Dental Stress Analysis ; Dentin ; Dentin Permeability ; Dentin-Bonding Agents - chemistry ; Dentistry ; Enamel ; Ethanol ; Free radicals ; Humans ; Hydrolysis ; Hypotheses ; Longevity ; Materials Testing ; Mechanical properties ; Microtensile bond strength ; Molar, Third ; Nanoleakage ; Polymerization ; Polymers ; Polymethacrylic Acids - chemistry ; Resin Cements - chemistry ; Scanning electron microscopy ; Silver Nitrate - analysis ; Solvents ; Studies ; Temperature ; Tensile Strength ; Time Factors
É parte de: Journal of dentistry, 2009-10, Vol.37 (10), p.791-798
Notas: ObjectType-Article-2
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Descrição: Abstract Objectives The aim of this study was to test the effect of adhesive temperature on the bond strength to dentin (μTBS) and silver nitrate uptake (SNU) of an ethanol/water (Adper Single Bond 2 [SB]) and an acetone-based (Prime&Bond 2.1 [PB]) etch-and-rinse adhesive system. Methods The bottles of each adhesive were kept in various temperatures (5 °C, 20 °C, 37 °C and 50 °C) for 1 h previously to its application in the occlusal demineralized dentin of 40 molars. Bonded sticks (0.8 mm2 ) were tested in tension (0.5 mm/min) immediately (IM) or after 6 months (6 M) of water storage. Two bonded sticks from each hemi-tooth were immersed in silver nitrate and analyzed by SEM. Data were analyzed by two-way repeated measures ANOVA and Tukey's test ( α = 0.05). Results No significant difference in μTBS was detected for both adhesives at 5 °C and 20 °C. The highest bond strength for PB was observed in the 37 °C group while for SB it was in the 50 °C. Significant reductions of bond strengths were observed for PB at 37 °C and SB at 50 °C after 6 M of water storage. Silver nitrate deposition was seen in all hybrid layers, irrespective of the group. Lower silver nitrate deposition (water trees) in the adhesive layer was seen for PB and SB at higher temperatures. Conclusions The heating or refrigeration of the adhesives did not improve their resin–dentin bond resistance to water degradation over time.
Editor: England: Elsevier Ltd
Idioma: Inglês;Persa;Faroês

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Effects of adhesive temperature on the early and 6-month dentin bonding

Reis, Alessandra ; Klein-Júnior, Celso Afonso ; Accorinte, Maria de Lourdes Rodrigues ; Grande, Rosa Helena Miranda ; Santos, Celso Bilynkievycz dos ; Loguercio, Alessandro D

England: Elsevier Ltd

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