Earticle

초록

영어

Purpose: This study aimed to investigate the effects of microwave and conventional sintering methods on the marginal and internal fit of 3-unit full-contour zirconia bridges. Methods: The zirconia specimens were designed as 3-unit full-contour bridges, and a total of 20 units were fabricated. Ten specimens of each commercial zirconia brand were divided into two subgroups (n=10) and sintered at a maximum temperature of 1,530°C using two methods: conventional and microwave sintering. The marginal and internal fit of the preshaded zirconia prostheses was evaluated using the silicone replica technique, followed by the two-dimensional analysis. An independent sample t-test was then performed to compare and analyze the data between the two groups (α=0.05). Results: The results showed no significant difference in the fit of zirconia bridges between the groups (p>0.05). All specimens remained within the clinically acceptable limit of 120 μm, indicating that the microwave speed sintering protocol is suitable for clinical application. Conclusion: This study demonstrates the potential of the microwave sintering method as a viable alternative to conventional furnace sintering. It not only significantly reduces the processing time but also helps achieve a precise fit that ensures long-term clinical outcomes.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 모형 제작
2. 시편 제작
3. 소결 방법
4. 측정지점의 정의
5. 적합도 측정
6. 통계분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
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