금속하부구조물이 도재의 색조에 미치는 영향에 대한 분광측색분석

다국어 초록 (Multilingual Abstract)

Metal-ceramic restorations have been used extensively by dental clinicians for nearly 40 years. Strength an functional ability of metal-ceramic restorations are proved to be satisfying, However esthetics and biocompatibility of metal alloy which is used in metal-ceramic restoration is not ideal. Using pure gold as an alternative, have advantage of esthetics, biocompatibility over conventional metal alloy. The purpose of this study was to spectrophotometrically evaluate the difference in color of metal alloy(Au-Pt, Ni-Cr) and pure gold, and to analyze the differences. Three types of metal - base metal(Ni-Cr), high gold alloy(Au-Pt), pure gold(GES) - specimen were fabricated 1cm in diameter. Four steps were established - after finishing , after pre-coditioning, after application of first opaque porcelain(0.08mm in thickness), after application of second opaque porcelain(0.15mm in thickness)- and tested color with spectrophotometer every each steps and analyzed with CIEL*a*b* color order system.
The results were as follows. ;
1. After finishing and pre-conditioning, pure gold(GES) group showed most high values in L*,a*,B*.
2. After application of first opaque porcelain(0.08mm in thickness), after application of second opaque porcelain(0.15mm in thickness), pure gold(GES) group showed the least difference in L*,a*,b* values and the lowest ΔE value(ΔE=0.63).
3. After application of first opaque porcelain and after application of second opaque porcelain differences that were significant (P < 0.05) between groups were found only in a* values.
4. Base metal alloy group showed the lowest a* value in test after application of first opaque porcelain and the highest value in test after application of first opaque porcelain

목차 (Table of Contents)

• I. 서론
• II. 연구재료 및 방법
• III. 실험성적
• IV. 총괄 및 고안
• V. 결론
• 참고문헌
• 영문초록