연삭된 지르코니아의 표면 특성
Surface Characteristics of the Ground Zirconia
김사학,
소속 상세정보
김사학 ( Kim Sa-Hak ) - 동우대학 치기공과
KMID : 0362120110330040323
Abstract
Purpose: This study was conducted to examine the phase transition according to the zirconia surface treatment. Methods: The specimens were divided to four groups. The first group was sintered at and ground; the second group was sintered at , ground, and sintered at ; the third group was sintered at , ground, and -sandblasted; and the fourth group was sintered at , ground, -sandblasted, treated with 9.5% hydrofluoric acid, and ultrasonic cleaner-washed for two minutes. The monoclinic fractions were measured, and the surface was observed via SEM. Results: The monoclinic fraction was in the control group Zr1, in the experimental group Zr2, in Zr3, and in Zr4. On the surface, the phase transition hardly occurred in the control group Zr1, but it increasingly occurred in the experimental groups Zr3 and Zr4. Conclusion: The monoclinic fraction was high in the experimental groups Zr3 and Zr4. The phase transition did not occur in the control group, but increasingly occurred in the experimental groups.
키워드
zirconia; monoclinic; tetragonal
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