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논문 기본 정보

자료유형
학술저널
저자정보
윤주원 (동남보건대학교) 이충재 (신한대학교) 이명구 (건국대학교)
저널정보
대한예방치과학회 International Journal of Clinical Preventive Dentistry International Journal of Clinical Preventive Dentistry Vol.13 No.4
발행연도
2017.1
수록면
223 - 230 (8page)

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Objective: The purpose of this study is to compare and evaluate the fracture resistance and transmittance of several types of zirconia for CAD/CAM. Four types of zirconia blocks including specimens with coloring agents were used for this study. Methods: Forty specimens were prepared in total, 5 pieces each. The biaxial flexural bending strength and transmittance measurement using D65 light source were compared to investigate its characteristics, and XRD and SEM images of each specimen were used to observe the phase change and microstructure. ISO 6872 is the current standard used for evaluating the physical and mechanical properties of zirconia dental materials is. In the biaxial flexural strength test, the block specimen diameter was 20 mm and the specimen thickness was measured with a precision of 1 mm. Results: The transmittance of the prepared specimens was lowered by an average of 10% after applying the coloring agent, but not by block. In this axial flexural strength test, the increase of 80 to 100 MPa was observed in the other zirconia blocks excluding the Trans Blocks. Conclusion: There was no statistically significant difference between the materials. It was found to be statistically significant only in High Shine Blocks.

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