원문정보
Analysis of the bonding strength according to surface treatments of dental Co-Cr alloy for porcelain fused to metal
초록
영어
Purpose: Observation of Oxide Film Formation and Bonding Strength according to surface treatment of Co-Cr Alloy for porcelain fused to Metal. Methods: metal specimens 0.5㎜×25㎜×4㎜ in size were made using Co-Cr alloys for porcelain fused to metal crown (Heraenium P, Tae jung Medis). Dental porcelain 0.5㎜×25㎜×4㎜ in size was sintered on the metal specimens after changing the etching time, sandblasting condition, and heat treatment temperature. Subsequently, the bonding strength was compared by the three-point flexural strength test using a universal testing machine (UTM) to observe the fracture surface and oxidized layers. Results: With regard to the experimental group treated with acid-etching, Specimen 1 treated for 25 minutes (B- 3) showed the highest bonding strength, and Specimen 2 treated only with sandblasting showed the most excellent bonding force at 3.5 bar (C-3). With regard to the experimental group treated with sandblasting at 3.5 bar after acid-etching for 25 minutes, Specimen 3 with heat treatment at 980℃ (D-3) showed the highest bonding strength. Conclusion: The specimen which went through both sandblasting and etching, showed an excellent ceramicmetal bond strength.
목차
Ⅰ. 서론
Ⅱ. 연구 방법
1. 실험재료
2. 시편제작
3. 실험방법
Ⅲ. 결과
1. 3점 굴곡강도 시험
2. 미세구조
3. EDX분석 및 파절양상
Ⅳ. 고찰
Ⅴ. 결론
REFERENCES