TY - JOUR
T1 - Ethanol-wet bonding technique
T2 - Clinical versus laboratory findings
AU - Kuhn, Eunice
AU - Farhat, Patrícia
AU - Teitelbaum, Ana Paula
AU - Mena-Serrano, Alexandra
AU - Loguercio, Alessandro D.
AU - Reis, Alessandra
AU - Pashley, David H.
N1 - Publisher Copyright:
© 2015 Academy of Dental Materials.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Abstract Objectives This study evaluated the microtensile bond strength (μTBS) and nanoleakage (NL) of dentin bonded interfaces produced with ethanol-wet and water-wet bonding protocols under clinical and laboratory conditions. Methods The sample was composed of forty primary second molars in advanced exfoliation process. Occlusal cavities were prepared leaving a flat dentin surface on the pulpal floor. In half of the teeth, the water-wet protocol was followed using a three-step etch-and-rinse adhesive. In the other half, dentin was dehydrated with ascending ethanol solutions (50%, 70%, 80%, 95% and 3 × 100%), 15 s each for the ethanol-bonding protocol. An experimental hydrophobic primer was used, followed by the neat adhesive application. Resin build-ups were prepared, stored for 24 h, sectioned into sticks and tested in tensile mode (0.5 mm/min). NL was performed for all groups. The μTBS and NL data were submitted to two-way ANOVA and Kruskall-Wallis tests, respectively (α = 0.05). Results Under clinical conditions, the highest μTBS was observed for the water-wet bonding while under the laboratory setting, the highest μTBS was obtained for the ethanol-wet bonding. Increased NL was observed in the water-wet bonding groups irrespective of the bonding condition. Significance The immediate benefits of the ethanol-bonding observed in the laboratory setting was not confirmed when the same protocol was performed in vivo. However, as reduced nanoleakage was seen in adhesive interfaces produced with the ethanol-wet bonding technique, suggests that the hybrid layer may be more resistant to degradation.
AB - Abstract Objectives This study evaluated the microtensile bond strength (μTBS) and nanoleakage (NL) of dentin bonded interfaces produced with ethanol-wet and water-wet bonding protocols under clinical and laboratory conditions. Methods The sample was composed of forty primary second molars in advanced exfoliation process. Occlusal cavities were prepared leaving a flat dentin surface on the pulpal floor. In half of the teeth, the water-wet protocol was followed using a three-step etch-and-rinse adhesive. In the other half, dentin was dehydrated with ascending ethanol solutions (50%, 70%, 80%, 95% and 3 × 100%), 15 s each for the ethanol-bonding protocol. An experimental hydrophobic primer was used, followed by the neat adhesive application. Resin build-ups were prepared, stored for 24 h, sectioned into sticks and tested in tensile mode (0.5 mm/min). NL was performed for all groups. The μTBS and NL data were submitted to two-way ANOVA and Kruskall-Wallis tests, respectively (α = 0.05). Results Under clinical conditions, the highest μTBS was observed for the water-wet bonding while under the laboratory setting, the highest μTBS was obtained for the ethanol-wet bonding. Increased NL was observed in the water-wet bonding groups irrespective of the bonding condition. Significance The immediate benefits of the ethanol-bonding observed in the laboratory setting was not confirmed when the same protocol was performed in vivo. However, as reduced nanoleakage was seen in adhesive interfaces produced with the ethanol-wet bonding technique, suggests that the hybrid layer may be more resistant to degradation.
KW - Ethanol-wet bonding
KW - In vitro
KW - In vivo
KW - Microtensile bond strength
KW - Nanoleakage
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U2 - 10.1016/j.dental.2015.05.010
DO - 10.1016/j.dental.2015.05.010
M3 - Article
C2 - 26113426
AN - SCOPUS:84938293107
SN - 0109-5641
VL - 31
SP - 1030
EP - 1037
JO - Dental Materials
JF - Dental Materials
IS - 9
M1 - 2570
ER -