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RISS 인기검색어
- 검색키워드
- 저자 : Victor Hugo dos Santos (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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dos Santos, Victor Hugo,Griza, Sandro,de Moraes, Rafael Ratto,Faria-e-Silva, Andre Luis The Korean Academy of Conservative Dentistry 2014 Restorative Dentistry & Endodontics Vol.39 No.1
Objectives: Extensively destroyed teeth are commonly restored with composite resin before cavity preparation for indirect restorations. The longevity of the restoration can be related to the proper bonding of the resin cement to the composite. This study aimed to evaluate the microshear bond strength of two self-adhesive resin cements to composite resin. Material and Methods: Composite discs were subject to one of six different surface pretreatments: none (control), 35% phosphoric acid etching for 30 seconds (PA), application of silane (silane), PA + silane, PA + adhesive, or PA + silane + adhesive (n = 6). A silicone mold containing a cylindrical orifice ($1mm^2$ diameter) was placed over the composite resin. RelyX Unicem (3M ESPE) or BisCem (Bisco Inc.) self-adhesive resin cement was inserted into the orifices and light-cured. Self-adhesive cement cylinders were submitted to shear loading. Data were analyzed by two-way ANOVA and Tukey's test (p < 0.05). Results: Independent of the cement used, the PA + Silane + Adhesive group showed higher microshear bond strength than those of the PA and PA + Silane groups. There was no difference among the other treatments. Unicem presented higher bond strength than BisCem for all experimental conditions. Conclusions: Pretreatments of the composite resin surface might have an effect on the bond strength of self-adhesive resin cements to this substrate.
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Victor Hugo dos Santos,Sandro Griza,Rafael Ratto de Moraes,André Luis Faria-e-Silva 대한치과보존학회 2014 Restorative Dentistry & Endodontics Vol.39 No.1
Objectives: Extensively destroyed teeth are commonly restored with composite resinbefore cavity preparation for indirect restorations. The longevity of the restorationcan be related to the proper bonding of the resin cement to the composite. This studyaimed to evaluate the microshear bond strength of two self-adhesive resin cements tocomposite resin. Material and Methods: Composite discs were subject to one of sixdifferent surface pretreatments: none (control), 35% phosphoric acid etching for 30seconds (PA), application of silane (silane), PA + silane, PA + adhesive, or PA + silane+ adhesive (n = 6). A silicone mold containing a cylindrical orifice (1 mm2 diameter)was placed over the composite resin. RelyX Unicem (3M ESPE) or BisCem (Bisco Inc.)self-adhesive resin cement was inserted into the orifices and light-cured. Self-adhesivecement cylinders were submitted to shear loading. Data were analyzed by two-wayANOVA and Tukey’s test (p < 0.05). Results: Independent of the cement used, the PA+ Silane + Adhesive group showed higher microshear bond strength than those ofthe PA and PA + Silane groups. There was no difference among the other treatments. Unicem presented higher bond strength than BisCem for all experimental conditions. Conclusions: Pretreatments of the composite resin surface might have an effect onthe bond strength of self-adhesive resin cements to this substrate.
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