Abstract
Higher 24-hour resin-dentin bond strengths are created when ethanol is used to replace water during wet bonding. This in vitro study examined if ethanol-wet-bonding can increase the durability of resin-dentin bonds over longer times. Five increasingly hydrophilic experimental resin blends were bonded to acid-etched dentin saturated with water or ethanol. Following composite build-ups, the teeth were reduced into beams for 24-hour microtensile bond strength evaluation, and for water-aging at 37°C for 3, 6, or 12 months before additional bond strength measurements. Although most bonds made to water-saturated dentin did not change over time, those made to ethanol-saturated dentin exhibited higher bond strengths, and none of them fell over time. Decreased collagen fibrillar diameter and increased interfibrillar spacing were seen in hybrid layers created with ethanol-wet-bonding. Increases in bond strength and durability in ethanol-wet-bonding may be due to higher resin uptake and better resin sealing of the collagen matrix, thereby minimizing endogenous collagenolytic activities.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 146-151 |
| Number of pages | 6 |
| Journal | Journal of Dental Research |
| Volume | 88 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 10 2009 |
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Keywords
- Dentin bonding
- Durability
- Ethanol
- Hydrophilicity
ASJC Scopus subject areas
- Dentistry(all)
Cite this
Durability of resin-dentin bonds to water- vs. ethanol-saturated dentin. / Hosaka, K.; Nishitani, Y.; Tagami, J.; Yoshiyama, M.; Brackett, W. W.; Agee, K. A.; Tay, F. R.; Pashley, D. H.
In: Journal of Dental Research, Vol. 88, No. 2, 10.08.2009, p. 146-151.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Durability of resin-dentin bonds to water- vs. ethanol-saturated dentin
AU - Hosaka, K.
AU - Nishitani, Y.
AU - Tagami, J.
AU - Yoshiyama, M.
AU - Brackett, W. W.
AU - Agee, K. A.
AU - Tay, F. R.
AU - Pashley, D. H.
PY - 2009/8/10
Y1 - 2009/8/10
N2 - Higher 24-hour resin-dentin bond strengths are created when ethanol is used to replace water during wet bonding. This in vitro study examined if ethanol-wet-bonding can increase the durability of resin-dentin bonds over longer times. Five increasingly hydrophilic experimental resin blends were bonded to acid-etched dentin saturated with water or ethanol. Following composite build-ups, the teeth were reduced into beams for 24-hour microtensile bond strength evaluation, and for water-aging at 37°C for 3, 6, or 12 months before additional bond strength measurements. Although most bonds made to water-saturated dentin did not change over time, those made to ethanol-saturated dentin exhibited higher bond strengths, and none of them fell over time. Decreased collagen fibrillar diameter and increased interfibrillar spacing were seen in hybrid layers created with ethanol-wet-bonding. Increases in bond strength and durability in ethanol-wet-bonding may be due to higher resin uptake and better resin sealing of the collagen matrix, thereby minimizing endogenous collagenolytic activities.
AB - Higher 24-hour resin-dentin bond strengths are created when ethanol is used to replace water during wet bonding. This in vitro study examined if ethanol-wet-bonding can increase the durability of resin-dentin bonds over longer times. Five increasingly hydrophilic experimental resin blends were bonded to acid-etched dentin saturated with water or ethanol. Following composite build-ups, the teeth were reduced into beams for 24-hour microtensile bond strength evaluation, and for water-aging at 37°C for 3, 6, or 12 months before additional bond strength measurements. Although most bonds made to water-saturated dentin did not change over time, those made to ethanol-saturated dentin exhibited higher bond strengths, and none of them fell over time. Decreased collagen fibrillar diameter and increased interfibrillar spacing were seen in hybrid layers created with ethanol-wet-bonding. Increases in bond strength and durability in ethanol-wet-bonding may be due to higher resin uptake and better resin sealing of the collagen matrix, thereby minimizing endogenous collagenolytic activities.
KW - Dentin bonding
KW - Durability
KW - Ethanol
KW - Hydrophilicity
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UR - http://www.scopus.com/inward/citedby.url?scp=62649117768&partnerID=8YFLogxK
U2 - 10.1177/0022034508328910
DO - 10.1177/0022034508328910
M3 - Article
VL - 88
SP - 146
EP - 151
JO - Journal of Dental Research
JF - Journal of Dental Research
SN - 0022-0345
IS - 2
ER -