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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제8권 제2호
- 발행연도
- 2016.1
- 수록면
- 137 - 143 (7page)
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초록· 키워드
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PURPOSE. Grinding with less stress on 3Y-TZP through proper selection of methods and instruments can lead to a long-term success of prosthesis. The purpose of this study was to compare the phase transformation and physical properties after zirconia surface grinding with 3 different grinding burs. MATERIALS AND METHODS. Forty disc-shaped zirconia specimens were fabricated. Each Ten specimens were ground with AllCeramic SuperMax (NTI, Kahla, Germany), Dura-Green DIA (Shofu Inc., Kyoto, Japan), and Dura-Green (Shofu Inc., Kyoto, Japan). Ten specimens were not ground and used as a control group. After the specimen grinding, XRD analysis, surface roughness test, FE-SEM imaging, and biaxial flexural strength test were performed. RESULTS. After surface grinding, small amount of monoclinic phase in all experimental groups was observed. The phase change was higher in specimens, which were ground with Dura-Green DIA and AllCeramic SuperMax burs. The roughness of surfaces increased in specimens, which were ground with Dura-Green DIA and AllCeramic SuperMax burs than control groups and ground with Dura-Green. All experimental groups showed lower flexural strength than control group, but there was no statistically significant difference between control group and ground with Dura-Green DIA and AllCeramic SuperMax burs. The specimens, which were ground with Dura-Green showed the lowest strength. CONCLUSION. The use of dedicated zirconia-specific grinding burs such as Dura-Green DIA and AllCeramic SuperMax burs decreases the grinding time and did not significantly affect the flexural strength of zirconia, and therefore, they may be recommended. However, a fine polishing process should be accompanied to reduce the surface roughness after grinding. [J Adv Prosthodont 2016;8:137-43]
목차
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참고문헌 (24)
참고문헌 신청
Kim DJ / 1993 / Transformation of tetragonal zirconia / Sci Technol Ceram Mater 8:157~165
Işeri U / 2012 / Comparison of different grinding procedures on the flexural strength of zirconia / J Prosthet Dent 107:309~315
Garvie RC / 1975 / Ceramic steel? / Nature 258:703~704
Sakuma T / 1985 / The rhombohedral phase produced in partially-stabilized zirconia / J Mater Sci Lett 4:29~30
Karakoca S / 2009 / Influence of surface treatments on surface roughness, phase transformation, and biaxial flexural strength of Y-TZP ceramics / J Biomed Mater Res B Appl Biomater 91:930~937
Işeri U / 2012 / Comparison of different grinding procedures on the flexural strength of zirconia / J Prosthet Dent 107:309~315
Garvie RC / 1975 / Ceramic steel? / Nature 258:703~704
Sakuma T / 1985 / The rhombohedral phase produced in partially-stabilized zirconia / J Mater Sci Lett 4:29~30
Karakoca S / 2009 / Influence of surface treatments on surface roughness, phase transformation, and biaxial flexural strength of Y-TZP ceramics / J Biomed Mater Res B Appl Biomater 91:930~937
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