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KMID : 0362219940210020185
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Journal of The Korean Research Society for Dental Materials
1994 Volume.21 No. 2 p.185 ~ p.294
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THE SHEAR BOND STRENGTHS OF ACETOXE-BASED DENTIN BONDING SYSTEMS TO MOIST DENTIN
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이광원
김경남/손호현
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Abstract
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the purpose of this study was to investigate whether or not the wetting of dentin compared to the dried dentin influences the shear bond strengh of strong, hydrophilic dentin bonding systems particularly containing acetone.
Three dentin bonding systems (i. e. All Bond 2, Mirage ABC, Tenure S) with primers possessing strongly hydrophilic properties were applied to air-dried and moist dentin individually.
After the shear bond strength of three dentin bonding systems were evaluated, and then the sheared specimens were examined by light optical and scanning electron microscopy (Hitachi, Japan) to determine the location and appearance of the
fracture.
@ES The following results were obtained.
@EN 1. The enhancement of shear bond strength to moist dentin compared to to air dried dentin existed within groups treated with All Bond 2. (P<0.001)
2. A statistically significant difference of shear bond strength did not exist between moist dentin and air-dried dentin within groups treated with Mirage ABC and Tenure S. (P>0.05)
3. The deep cohesive fracture of dentin was appeared within all the moistened specimens treated with All Bond 2. On the ocntrary, the air-dried specimen S did not show any cohesive fracture of dentin except one.
4. All the moist and dry specimens treated with Mirage ABC and Tenure S did not show any cohesive fracture of dentin.
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KEYWORD
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