현재 위치
Home
Original Article
Selective laser melting 방식과 lost-wax casting 방식으로 제작된 메탈코핑의 내면과 변연의 정확성 평가
Evaluation of the accuracy of internal and marginal surfaces of metal copings manufactured using selective laser melting and lost-wax casting methods
-
- 발행기관
- 대한치과기공학회 바로가기
-
- 간행물
- 대한치과기공학회지 KCI 등재 바로가기
-
- 통권
- Vol.46 No.4 (2024.12)바로가기
-
- 페이지
- pp.150-156
-
- 저자
-
- 언어
- 한국어(KOR)
-
- URL
- https://www.earticle.net/Article/A459386
※ 기관로그인 시 무료 이용이 가능합니다.
4,000원
원문정보
초록
- 영어
- Purpose: This study was conducted to evaluate the accuracy of the internal and marginal surfaces of metal copings manufactured using lost-wax casting (LWC) and selective laser melting (SLM) methods. Methods: A prepared upper left incisor on the master model was selected as the abutment tooth and scanned using a model scanner. Copings were fabricated by casting with cobalt– chromium (Co–Cr) alloy or three-dimensional (3D) printing with Co–Cr powder (n=20). The manufactured specimens were scanned and saved in standard tessellation language format. Accuracy was measured using a 3D analysis program. Statistical analyses were conducted using the SPSS (IBM). Significant differences were evaluated using the Shapiro– Wilk test. The Mann–Whitney U-test, a nonparametric method, was used because normality was not satisfied (α=0.05). Results: The mean root mean square (RMS) values of trueness of the internal and marginal surfaces in the LWC method were 37.12±1.21 and 59.92±4.48 μm, respectively, which were higher than the values of 20.73±1.07 and 44.61±2.67 μm, respectively, in the SLM method, with the difference being statistically significant (p<0.001 and p=0.023, respectively). The internal surface mean RMS values of precision in the LWC and SLM groups were 22.39±2.87 and 21.16±1.25 μm, respectively, which showed no statistically significant difference (p=0.872); however, the marginal surface mean RMS values were 50.97±2.24 and 22.11±1.19 μm, respectively, indicating a statistically higher precision in the SLM group (p<0.001). Conclusion: The internal and marginal surfaces of metal copings manufactured using LWC and SLM methods showed significantly different accuracy, except for internal surface precision. Both methods yielded clinically acceptable values.
목차
Article Info
INTRODUCTION
MATERIALS AND METHODS
1. 시편 제작
2. 3차원 중첩 평가
3. 통계 분석
RESULTS
DISCUSSION
CONCLUSIONS
FUNDING
ACKNOWLEDGEMENTS
CONFLICT OF INTEREST
ORCID
REFERENCES
키워드
Accuracy Lost-wax casting Metal coping Selective laser melting Subtractive manufacturing Three-dimensional printing저자
간행물 정보
발행기관
-
- 발행기관명
- 대한치과기공학회 [The Korean Academy Of Dental Technology]
- 설립연도
- 1979
- 분야
- 의약학>치의학
- 소개
- 본 학회는 치과기공에 관한 모든 분야의 연구와 회무를 총괄하기 위하여 세분화된 분과학회의 회원 상호간 학술교류와 정보를 수집하고, 보수교육 및 학술대회 준비, 진행과 학회지 발간등의 업무를 효율적으로 수행함을 목적으로 한다.
간행물
-
- 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
이 권호 내 다른 논문 / 대한치과기공학회지 Vol.46 No.4
피인용수 : 0건 (자료제공 : 네이버학술정보)
함께 이용한 논문 이 논문을 다운로드한 분들이 이용한 다른 논문입니다.
출처 : 네이버학술정보
0개의 논문이 장바구니에 담겼습니다.