|
KMID : 0362120210430010013
|
|
Journal of Technologic Dentistry
2021 Volume.43 No. 1 p.13 ~ p.18
|
|
|
Evaluation of flexural properties and reliability with photo-curing 3D printing resin according to the printing orientations
|
|
Im Yong-Woon
Song Doo-Bin
Hwang Seong-Sig
Kim Sa-Hak
Han Man-So
|
|
|
Abstract
|
|
|
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.
|
|
|
KEYWORD
|
|
|
Flexural properties, Printing orientations, Size accuracy, Three-dimensional printer, Weibull analysis
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|