2008
Effects of resin hydrophilicity on dentin bonds
Adhes. Dent.
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- Volume
- 26
- Number
- 2
- First page
- 92
- Last page
- 98
- Language
- Japanese
- Publishing type
- DOI
- 10.11297/adhesdent1983.26.92
- Publisher
- Japan Society for Adhesive Dentistry
The purpose of this study was to determine the effects of resin hydrophilicity on dentin bonds. The study examined the microtensile bond strength of six experimental self-etching primers and two experimental bonds (50wt% ethanol/50wt% comonomers) of various degrees of hydrophilicity, that is various degrees of HEMA, to intact dentin. Following composite buildup, hourglass-shaped slabs were prepared from the bonded teeth for microtensile testing after24hours or6months. Higher bond strengths were achieved with increased resin hydrophilicity after 24hours, while the lowest bond strengths were achieved with increased resin hydrophilicity after6months. Measurements of water sorption/solubility of the polymers that were previously described showed high correlations between water sorption and the degree of HEMA, and between polymer solubility and the degree of HEMA.<BR>These results indicated that higher resin hydrophilicity was effective for short-term microtensile strength, while increased resin hydrophilicity may cause lower bond strength due to the weakness of polymers that have absorbed water after 6 months.
- Link information
- ID information
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- DOI : 10.11297/adhesdent1983.26.92
- ISSN : 0913-1655
- CiNii Articles ID : 130003845733