TY - JOUR
T1 - Alternative aging solutions to accelerate resin-dentin bond degradation
AU - Reis, Alessandra
AU - Martins, Gislaine C.
AU - de Paula, Eloisa Andrade
AU - Sanchez, Andrés Dávila
AU - Loguercio, Alessandro D.
N1 - Publisher Copyright:
© Quintessenz.
PY - 2015
Y1 - 2015
N2 - Purpose: This study evaluated the effect of aging solutions on the durability of resin-dentin bonds by means of microtensile bond strength (μTBS) and nanoleakage (NL) tests. Materials and Methods: The adhesive system Adper Single Bond 2 (3M ESPE) was applied according to the manufacturer's instructions to the flattened occlusal surface of 40 extracted human molars. After bonding, teeth were sectioned to obtain bonded sticks (0.8 mm2 area) which were tested in tension immediately or after different storage periods (1 week, 1 month, or 6 months). Bonded sticks were kept immersed in 5 different solutions: 1) distilled water (DW); 2) 99.9% propionic acid (PA); 3) 99% acetic acid (AA); 4) 75% ethanol (ET), and 5) mineral oil (MO). To determine NL, bonded sticks from each experimental condition were immersed in silver nitrate and analyzed by SEM. Data were analyzed by two-way repeated measure ANOVA and Tukey's test (a = 0.05). Results: Faster degradation of bond strength (1 week) could be seen for AA and ET (p < 0.05) in comparison with DW. Specimens stored in PA and DW showed bond strengths significantly reduced after one and six months, respectively (p < 0.05). No degradation of the resin-dentin bond strengths was observed for specimens stored in MO (p > 0.05). Nanoleakage increased for all groups except MO after storage. Conclusion: Propionic acid, acetic acid, and ethanol can be used as alternative aging solutions to more quickly obtain results on the bond resistance to degradation.
AB - Purpose: This study evaluated the effect of aging solutions on the durability of resin-dentin bonds by means of microtensile bond strength (μTBS) and nanoleakage (NL) tests. Materials and Methods: The adhesive system Adper Single Bond 2 (3M ESPE) was applied according to the manufacturer's instructions to the flattened occlusal surface of 40 extracted human molars. After bonding, teeth were sectioned to obtain bonded sticks (0.8 mm2 area) which were tested in tension immediately or after different storage periods (1 week, 1 month, or 6 months). Bonded sticks were kept immersed in 5 different solutions: 1) distilled water (DW); 2) 99.9% propionic acid (PA); 3) 99% acetic acid (AA); 4) 75% ethanol (ET), and 5) mineral oil (MO). To determine NL, bonded sticks from each experimental condition were immersed in silver nitrate and analyzed by SEM. Data were analyzed by two-way repeated measure ANOVA and Tukey's test (a = 0.05). Results: Faster degradation of bond strength (1 week) could be seen for AA and ET (p < 0.05) in comparison with DW. Specimens stored in PA and DW showed bond strengths significantly reduced after one and six months, respectively (p < 0.05). No degradation of the resin-dentin bond strengths was observed for specimens stored in MO (p > 0.05). Nanoleakage increased for all groups except MO after storage. Conclusion: Propionic acid, acetic acid, and ethanol can be used as alternative aging solutions to more quickly obtain results on the bond resistance to degradation.
KW - Adhesive system
KW - Degradation
KW - Dentin
KW - Microtensile bond strength
KW - Oral simulating fluids
KW - Silver nitrate uptake
UR - http://www.scopus.com/inward/record.url?scp=84953860383&partnerID=8YFLogxK
U2 - 10.3290/j.jad.a34591
DO - 10.3290/j.jad.a34591
M3 - Artículo
C2 - 26295065
AN - SCOPUS:84953860383
SN - 1461-5185
VL - 17
SP - 321
EP - 328
JO - Journal of Adhesive Dentistry
JF - Journal of Adhesive Dentistry
IS - 4
ER -