Earticle

초록

영어

Purpose: This study aimed to investigate the flexural strength and surface microstructure of the zirconia crown according to the number of glazing zirconia prostheses. Methods: The specimens were made as follows. A specimen without glazing: 1ea, first glazed specimens (group B): 10ea, second glazed specimens (group C): 10ea, third glazed specimens (group D): 10ea. Three-point measuring strength equipment and electron microscopes were used for strength measurement and microstructure observation. As for statistical analysis, one-way ANOVA and t-test (level of significance level=5%) were used to determine the difference in the change in flexural strength according to the number of glazing zirconia prostheses. Results: ANOVA analysis of groups B (1st glazing), C (2nd glazing), and D (3rd glazing) revealed that the change in strength between the groups is statistically significant (p=0.023). The Mann–Whitney test for each group revealed that the difference in flexural strength between groups B and C was not statistically significant (z=–0.302, p=0.762) while that between groups C and D was statistically significant (z=–0.257, p=0.01). Microstructure observation revealed 3 changes in the microstructure of the surface of the glaze powder were observed. Conclusion: According to the number of glazing zirconia prostheses, it was found that the difference in strength between groups was statistically significant, and changes in the microstructure were observed.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 연구절차
2. 시편 제작
3. 굴곡강도 측정
4. 미세구조 관찰
5. 자료 분석
RESULTS
1. 굴곡강도
2. 미세구조 관찰에 관한 분석
DISCUSSION
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 오선미 [ Seon Mi Oh | 동남보건대학교 치기공과 ] 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