earticle

영어

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 29.91 11.93 for alloy, 33.45 8.61 for IPS - Empress, and 31.55 9.85 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.