TY - JOUR
T1 - Resistance of ten contemporary adhesives to resin-dentine bond degradation
AU - Osorio, Raquel
AU - Pisani-Proenca, Jatyr
AU - Erhardt, Maria Carolina G.
AU - Osorio, Estrella
AU - Aguilera, Fátima S.
AU - Tay, Franklin R.
AU - Toledano, Manuel
N1 - Funding Information:
This research project was supported by grant CICYT/FEDER MAT2004-06872-C03-02.
PY - 2008/2
Y1 - 2008/2
N2 - Objectives: To evaluate resin-dentine bond degradation after 1 year of water storage. Methods: Human dentine surfaces were bonded with two etch-and-rinse self-priming adhesives (Single Bond/SB and Prime & Bond NT/PBNT), three 2-step self-etching adhesives (Clearfil SE Bond/SEB, Resulcin Aqua Prime/RES and Non-Rinse Conditioner with Prime & Bond NT/NRC-PBNT), and five 1-step self-etching adhesives (Etch & Prime 3.0/EP, Prompt L-Pop/PLP, Solist/SOL, Futurabond/FUT and AQ Bond/AQ). Adhesives were applied according to manufacturers' instructions. Composite build-ups were constructed and the bonded teeth were stored (24 h, 6 months, 1 year) in distilled water at 37 °C. After storage, the intact teeth were sectioned into beams and all specimens were tested for microtensile bond strengths (MTBS). ANOVA and multiple comparisons tests were applied at α = 0.05. Fractographic analysis of debonded beams was performed using scanning electron microscopy. Results: SB, PBNT and SEB attained the highest MTBS, regardless of the storage period. A significant decrease in MTBS was observed after 6 months for SOL. After 12 months the only groups that did not reduce bond strength were SB and SEB. Bonded specimens in NRC-PBNT, RES and FUT produced pre-testing failures after 12 months, and MTBS could not be measured. Conclusions: The resistance of resin-dentine bonds to degradation is material-dependent. When the enamel-resin interface is preserved, the etch-and-rinse adhesives and the mild 2-step self-etch adhesive SEB exhibited the best resin-dentine bond durability. Those tested self-etching adhesives having a pH ≤ 1 and using water or acetone as solvent attained catastrophic bond failure after 1 year of water storage.
AB - Objectives: To evaluate resin-dentine bond degradation after 1 year of water storage. Methods: Human dentine surfaces were bonded with two etch-and-rinse self-priming adhesives (Single Bond/SB and Prime & Bond NT/PBNT), three 2-step self-etching adhesives (Clearfil SE Bond/SEB, Resulcin Aqua Prime/RES and Non-Rinse Conditioner with Prime & Bond NT/NRC-PBNT), and five 1-step self-etching adhesives (Etch & Prime 3.0/EP, Prompt L-Pop/PLP, Solist/SOL, Futurabond/FUT and AQ Bond/AQ). Adhesives were applied according to manufacturers' instructions. Composite build-ups were constructed and the bonded teeth were stored (24 h, 6 months, 1 year) in distilled water at 37 °C. After storage, the intact teeth were sectioned into beams and all specimens were tested for microtensile bond strengths (MTBS). ANOVA and multiple comparisons tests were applied at α = 0.05. Fractographic analysis of debonded beams was performed using scanning electron microscopy. Results: SB, PBNT and SEB attained the highest MTBS, regardless of the storage period. A significant decrease in MTBS was observed after 6 months for SOL. After 12 months the only groups that did not reduce bond strength were SB and SEB. Bonded specimens in NRC-PBNT, RES and FUT produced pre-testing failures after 12 months, and MTBS could not be measured. Conclusions: The resistance of resin-dentine bonds to degradation is material-dependent. When the enamel-resin interface is preserved, the etch-and-rinse adhesives and the mild 2-step self-etch adhesive SEB exhibited the best resin-dentine bond durability. Those tested self-etching adhesives having a pH ≤ 1 and using water or acetone as solvent attained catastrophic bond failure after 1 year of water storage.
KW - Adhesion
KW - Bond strength
KW - Degradation
KW - Dentine
KW - Etch-and-rinse
KW - Microtensile
KW - Self-etch
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U2 - 10.1016/j.jdent.2007.12.002
DO - 10.1016/j.jdent.2007.12.002
M3 - Article
C2 - 18248872
AN - SCOPUS:38349051779
SN - 0300-5712
VL - 36
SP - 163
EP - 169
JO - Journal of Dentistry
JF - Journal of Dentistry
IS - 2
ER -