치과보철물 제작에 사용되는 금속-도재용 합금, IPS - Empress, 지르코니아() 세라믹의 변연적합도에 관한 비교평가
The comparative study on the marginal fit of a metal-ceramic alloy, IPS - Empress and a zirconia() ceramic used for fabrication of dental restoration
김철수,
소속 상세정보
김철수 ( Kim Chul-soo ) - 우리치과기공소
KMID : 0362120110330010007
Abstract
Purpose: As the demand and importance of aesthetic aspects in dental treatment become higher, much attention is paid to materials used for dental prostheses. Thus, the marginal fidelity of most-commonly used alloy, IPS - Empress and ZrO2 ceramic is compared.
Methods: The alloy core made by casting, IPS - Empress core made by pressing and ZrO2 ceramic core made by CAD/CAM are used to make 10 samples respectively. For each core, three points were measures and the optical microscope (Axio Imager.Alm,Zeiss co., Oberkochen, Germany) was used to observe the cores with a magnification of 100.
Results: As for alloy, IPS - Empress and ZrO2 ceramic, the average and deviation of their marginal distance are for alloy, for IPS - Empress, and for ZrO2. The one-way ANOVA test was conducted to compare them. However, there was no statistically significant difference among them.
Conclusion: The study on marginal fidelity of alloy, IPS - Empress, and ZrO2 ceramic shows they have no marginal fidelity problem clinically. Therefore, if a system is selected based on the patient’s condition or treatment method, there will be no problem.
키워드
metal-ceramic alloy; IPS - Empress; zirconia(ZrO2)ceramic; marginal fitness
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