디지털 광원 처리 프린터로 제작된 임시수복용 레진의 후경화기계에 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
박영대, 강월,
소속 상세정보
박영대 ( Park Young-Dae ) - Daegu Health College Department of Dental Laboratory
강월 ( Kang Wol ) - Daegu Health College Department of Dental Laboratory
Abstract
Purpose: This study aimed to evaluate the effect of post-curing method on the flexuralstrength 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 restorativeresins made with different post-curing methods were investigated and divided intoconventional and vacuum groups. For the flexural strength test, each group was preparedby each method according to ISO 10477, and the flexural strength was measured with auniversal testing machine. For statistical analysis, data were analyzed by independent t-testand Mann?Whitney U test.
Results: The flexural strengths of the conventional and vacuum groups were 151.89 MPaand 131.94 MPa, respectively, showing a statistically significant difference (p<0.05).
Conclusion: Within the limitation of this study, provisional restorative resins produced withvacuum demonstrated lower flexural strength than those produced with conventional postcuringmethod.
키워드
Printing; Resins; Synthetic; Three-dimensional
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