디지털 광원 처리 프린터로 제작된 임시수복용 레진의 후경화 기계에 따른 굴곡강도 연구
Comparative analysis of the flexural strength of provisional restorative resins using a digital light processing printer according to the post-curing method
Purpose: This study aimed to evaluate the effect of post-curing method on the flexural strength of provisional restorative resins produced by a digital light processing printer. Methods: A total of 20 specimens were produced, with a length of 64 mm, width of 10 mm, and thickness of 3.3 mm using a digital light processing printer. Two types of provisional restorative resins made with different post-curing methods were investigated and divided into conventional and vacuum groups. For the flexural strength test, each group was prepared by each method according to ISO 10477, and the flexural strength was measured with a universal testing machine. For statistical analysis, data were analyzed by independent t-test and Mann–Whitney U test. Results: The flexural strengths of the conventional and vacuum groups were 151.89 MPa and 131.94 MPa, respectively, showing a statistically significant difference (p<0.05). Conclusion: Within the limitation of this study, provisional restorative resins produced with vacuum demonstrated lower flexural strength than those produced with conventional postcuring method.
목차
Abstract INTRODUCTION MATERIALS AND METHODS 1. 시편 제작 2. 굴곡강도 측정 3. 통계분석 RESULTS 1. 시편의 두께 2. 굴곡강도 3. 시편 파절 단면 DISCUSSION CONCLUSIONS ORCID REFERENCES
키워드
PrintingResinsSyntheticThree-dimensional
저자
박영대 [ Young-Dae Park | 대구보건대학교 치기공과 ]
강월 [ Wol Kang | 대구보건대학교 치기공과 ]
Corresponding Author