치과용 니켈-크롬 합금과 전장레진의 인장결합강도
Tensile Bond Strength between Dental Ni-Cr-Be Alloy and Veneered Resins
소속 상세정보
박주미/Ju-Mi Park
KMID : 0362219990260010045
Abstract
결론
비귀금속 합금에서 금속표면을 polishing과 250μm의 산화 알루미늄으로 sandblasting 후
제 2세대 기공용 레진인 Tagis와 Artglass resin으로 축성한 후 각각 레진과 금속간의 인장
결합강도를 측정하고 금속 표면의 파절 단면을 관찰하여, 다음과 같은 결과를 얻었다.
1. Targis군의 레진과 금속사이의 인장결합강도는 polishing군에서는 2.72±0.75MPa,
sandblasting군에서 4.79±0.08MPa 이었으며, 군간 유의한 차이가 있었고(p<0.01), Artglass
군에서는 polishing군에서 2.46±0.59MPa, sandblasting군이 4.77±1.22MPa 이었으며 군간
유의한 차이가 있었으나(p<0.01), 두 재료간에는 유의한 차이가 없었다 (p>0.05).
2. 레진 금속시편의 파절양상은 Tagis resin 전장시 polishing군은 주로 금속과 opaque
resin사이 계면에서 sandblasting군은 주로 Dentin resin 자체에서 파절이 관찰됐다.
Artglass resin전장시 Polishing군은 금속에서 Opaquer resin이 박리되었고 sandblasting군은
금속과 Opaquer resin사이에서 관찰됐다.
#초록#
The purpose of this study was to evaluate the tensile bond strength between
Ni-Cr-Be alloy and veneered resins. The cast metal specimens of Ni-Cr-Be alloy were
divided into two groups. One group was polished with #600 SiC paper, the other group
was sandblasted with 250μm aluminum oxide. After then, metal adhesive primers and
resin veneering were applied. The veneered resins were two commercially available
second generation laboratory composite resins for indirect restoration. The two selected
veneered resins were Targis(Ivoclar AG., Liechtenstein) and Artglass(Kulzer, Germany).
The two selected metal adhesive primers were Targis Link(Ivoclar AG., Liechtenstein)
and Siloc bond(Kulzer, Germany). Tensile bond strength was measured using Instron
Universal Testing machine and fractured surface of the resin veneered metal was
examined under the naked eyes and scanning electron microscope.
Within the limits of this study, following results were withdrawn.
1. The tensile bond strength between Targis resin and metal were 2.72 ±0.75MPa in
polishing group and 4.79 ±0.08MPa in sandblasting group. There was significant
difference between two groups(p<0.01). In Artglass veneering, they were 2.46±0.59MPa
in polishing group and 4.77±1.22MPa in sandblasting group. There was also significant
difference between two groups(p<0.01). But there was no significant difference between
two veneered materials(p>0.05).
2. In Targis group, fracture occurred at the interface between metal and resin in
polishing group, while cohesive fracture in Dentin resin was observed in sandblasing
group. In Artglass group, opaque resin exfoliation was observed in polishing group and
fracture at the metal and opaque resin interface was observed in sandblasting group.
키워드
tensile bond strength; second generation laboratory composite resin; metal adhesive primer.;
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