지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 안승근
- 발행연도
- 2015
- 저작권
- 전북대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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Purpose : This study compared shear bond strengths of five self-adhesive cements with phosphate monomer to zirconium oxide ceramic with and without airborn particle abrasion.
Materials and methods : One hundred zirconia samples were air-abraded(50㎛ Al2O3). One hundred composite resin cylinders were fabricated. Composite cylinders were bonded to the zirconia samples with either Permacem 2.0 (P), Clearfil SA Luting (C), Multilink Speed (M), RelyX U200 Automix (R), G-Cem LinkAce (G). All bonded specimens were stored in distilled water(37℃) for 24h and half of them were additionally aged by thermocycling(5℃, 55℃, 5,000 times). The bonded specimens were loaded in shear force until fracture(1mm/min) by using Universal Testing Machine(Model 4201, Instron Co, USA). The failure sites were inspected under field-emission scanning electron microscopy. The data was analyzed with ANOVA, Tukey HSD post-hoc test and paired samples t-test(α=.05).
Results : Before and after thermocycling, Multilink Speed (M) revealed higher shear-bond strength than the other cements. G-Cem LinkAce (G) showed significantly lower bond strengths after thermocycling than before treatment(p<.05), but the other groups were not significantly different(p>.05).
Conclusions : In this experiment, Multilink Speed (M), among five self adhesive resin cements, showed the highest bond strength before and after thermocycling treatment. The other groups` shear-bond strength decreased but not significant after thermocycling(p>.05) but shear-bond strength of G-Cem LinkAce (G) decreased significantly (p<.05).
Materials and methods : One hundred zirconia samples were air-abraded(50㎛ Al2O3). One hundred composite resin cylinders were fabricated. Composite cylinders were bonded to the zirconia samples with either Permacem 2.0 (P), Clearfil SA Luting (C), Multilink Speed (M), RelyX U200 Automix (R), G-Cem LinkAce (G). All bonded specimens were stored in distilled water(37℃) for 24h and half of them were additionally aged by thermocycling(5℃, 55℃, 5,000 times). The bonded specimens were loaded in shear force until fracture(1mm/min) by using Universal Testing Machine(Model 4201, Instron Co, USA). The failure sites were inspected under field-emission scanning electron microscopy. The data was analyzed with ANOVA, Tukey HSD post-hoc test and paired samples t-test(α=.05).
Results : Before and after thermocycling, Multilink Speed (M) revealed higher shear-bond strength than the other cements. G-Cem LinkAce (G) showed significantly lower bond strengths after thermocycling than before treatment(p<.05), but the other groups were not significantly different(p>.05).
Conclusions : In this experiment, Multilink Speed (M), among five self adhesive resin cements, showed the highest bond strength before and after thermocycling treatment. The other groups` shear-bond strength decreased but not significant after thermocycling(p>.05) but shear-bond strength of G-Cem LinkAce (G) decreased significantly (p<.05).
목차
영문 초록 1Ⅰ. 서론 3Ⅱ. 연구 재료 및 방법 5Ⅲ. 연구 결과 9Ⅳ. 총괄 및 고찰 15Ⅴ. 결론 17Reference 18
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