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Original Article

광경화성 3D 프린팅 레진의 출력각도에 따른 굽힘 특성과 신뢰성 평가

원문정보

Evaluation of flexural properties and reliability with photo-curing 3D printing resin according to the printing orientations

임용운, 송두빈, 황성식, 김사학, 한만소

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

Purpose: This study aimed to compare the flexural properties and perform the Weibull analysis of photo-curing three-dimensional (3D) printing resin. Methods: Photo-curing temporary resin (3D polymer) was used as a printing resin. Specimens (65 × 10 × 3.3 mm3) were prepared following the ISO 20975-1 guidelines and according to the different printing orientations using a digital light processing 3D printer (D2 120; Dentium). The flexural strength (FS), flexural modulus, and work of fracture (WOF) were measured using a universal testing machine (Instron 3344; Instron) at a crosshead speed of 5 mm/min. Results: In this study, the 0° orientation exhibited higher FS and WOF than the 45° orientation. Significant differences were found among the printing orientations (p<0.05). Specimens printed at the 0° orientation were the most accurate. In the Weibull analysis, 0° showed the greatest Weibull modulus (m), which represents a higher reliability. Conclusion: 3D printing should be selected and used by considering flexural properties, size accuracy, and reliability.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 시편 설계 및 출력
2. 굽힘강도 측정
3. 와이블 분석
4. 크기의 정확도 평가
5. 통계분석
RESULTS
DISCUSSION
CONCLUSIONS
CONFLICT OF INTEREST
ACKNOWLEDGEMENTS
ORCID
REFERENCES

저자정보

  • 임용운 Yong-Woon Im. 경동대학교 치기공학과
  • 송두빈 Doo-Bin Song. 대전보건대학교 치기공과, 유정치과기공소
  • 황성식 Seong-Sig Hwang. 경동대학교 치기공학과
  • 김사학 Sa-Hak Kim. 경동대학교 치기공학과
  • 한만소 Man-So Han. 대전보건대학교 치기공과

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