Earticle

초록

영어

Purpose: The aim of this study was to observe the surface roughness and surface topography of cobalt-chrome (Co-Cr) alloys with grinding time in dental barrel finishing. Methods: This study involved two types of Co-Cr alloys. Specimens were manufactured with the dimensions 10×10×2 mm. Each specimen was cast according to the manufacturer's instructions. The cast alloys were polished for 35 minutes at intervals of five minutes in an automatic barrel finishing. Specimens were imaged with a three-dimensional optical microscope to measure surface roughness. Results: BC specimens and GM specimens had the highest roughness (Ra) values in the ungrained control group, and the lowest Ra values were measured 20 minutes after grinding. Conclusion: The best conditions for grinding Co-Cr alloy using a dental barrel finishing were a weight ratio of polishing media, water, and compound of 150 g:200 g:5 g, and a rotation speed of 450 rpm. Grinding time to obtain appropriate surface roughness should be limited to 15 to 30 minutes.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 실험재료
2. 시편 제작
3. 바렐 가공
4. 표면형상 및 표면거칠기 관찰
5. 통계분석
RESULTS
1. 표면형상 관찰
2. 표면거칠기 측정
3. 통계분석
DISCUSSION
CONCLUSIONS
CONFLICT OF INTEREST
ORCID
REFERENCES

키워드

저자

• 고현정 [ Hyeon-Jeong Ko | 부산가톨릭대학교 치기공학과 ]
• 박유진 [ Yu-Jin Park | 부산가톨릭대학교 치기공학과 ]
• 최성민 [ Sung-Min Choi | 부산가톨릭대학교 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