IPS-Empress 도재에 대한 콤포짓트 레진의 전단결합강도
EFFECTS OF SURFACE TREATMENT AND BONDING AGENTS ON SHEAR BOND STRENGTH OF THE COMPOSITE RESION TO IPS-EMPRESS CERAMIC
윤병식, 임미경, 이용근,
소속 상세정보
윤병식 ( ) - 원광대학교 치과대학 치과보존학교실
임미경 ( Im Mi-Kyung ) - 원광대학교 치과대학 치과보존학교실
이용근 ( ) - 원광대학교 치과대학 치과재료학교실
KMID : 0362319980230010413
Abstract
Dental ceramics exhibit excellent esthetic property, compressive strength, chemical durability, biocompatibility and translucency. This study evaluated the shear bond strength of composite resin to the new heat-pressed ceramic material (IPS-Empress System) de-pending on the surface treatments and bonding agents. The surface treatments were etching with 4.0% hydrofluoric acid, application of silane, and the combination of the two methods. Composite resin was bonded to ceramic with four kinds of dentin bonding agents (All-Bond 2, Heliobond, Scotchbond Multi-purpose and Tenure bonding agents). The ceramic specimen bonded with composite resin was mounted in the testing jig, and the universal testing machine(Zwick 020, Germany) was used to measure the shear bond strength., with the cross head speed of 0.5 mm/min.
The results obtained were as follows :
1. The mean shear .bond strength of the specimens of which the ceramic surface was treated with the combination of hydrofluoric acid and silane before bonding composite resin was significantly higher than those of the other surface treatment groups(p<0.05).
2. In the case of All-Bond 2 and Scotchbond Multi-purpose bonding agent group, the surface treatment methods did not influenced significantly on the shear bond (p>0.05).
3. Of the four bonding agents tested, the shear bond strength of Heliobond was significantly lower than those of other bonding agents regardless of the surface treatment methods(p<0.05).
4. The highest shear bond strength (12.55±1.92 MPa) was obtained with Scotchbond Multipurpose preceded by the ceramic surface treatment with the combination of 4% hydrofluoric acid and silane.
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