Earticle

초록

영어

Purpose: The purpose of this in vitro study is to evaluate the clinical acceptability of the marginal discrepancies and internal spacing of multi-layered zirconia prothesis by speed sintering. Methods: The two specimen types come from the same manufacturer but differ in the ingredients in layered zirconia and indication, that is anterior and posterior. The designs of both specimens were full contour crowns, and a total of 20 pieces were repeatedly fabricated, 10 for each group. The specimens were divided into two subgroups (n=10) and sintered with various total times (4 hours, 8 hours) at the maximum temperature (1,530℃). The gap between the two groups of multi-layered zirconia prostheses was measured using a silicone replica technique of 2D analysis method. The independent sample t-test was then used to compare and analyze the data obtained from the two groups (α=0.05). Results: The marginal and internal gap was superior in the 8-hour compared to the 4-hour group, and the results exhibited significant differences (p<0.05). All specimens showed that using the speed sintering schedule does not exceed the clinically permitted value of 120 μm, meaning zirconia prothesis using the speed sintering was adequate. Conclusion: The sintering condition is shown to affect the marginal and internal gaps of multi-layered zirconia restoration.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 주 모형 제작
2. 시편 제작
3. 소결 스케줄
4. 적합도 측정 지점
5. 실리콘 복제기술
6. 적합도 측정 방법
7. 통계분석
RESULTS
1. 변연 및 내면적합도 측정
DISCUSSION
CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES

키워드

저자

• 김세연 [ Se-Yeon Kim | 부산가톨릭대학교 보건과학대학 치기공학과 ]
• 김재홍 [ Jae-Hong Kim | 부산가톨릭대학교 보건과학대학 치기공학과 ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과기공학회지 [THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY]

• 간기

  계간

• pISSN

  1229-3954

• eISSN

  2288-5218

• 수록기간

  1979~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 515 DDC 617