Polymerization shrinkage and stress analysis during dental restoration observed by digital image correlation method
- Title
- Polymerization shrinkage and stress analysis during dental restoration observed by digital image correlation method
- Author
- 최낙삼
- Keywords
- Dental composite resin; Digital image correlation; Shrinkage strain distribution; Principal tensile stress; Finite element analysis
- Issue Date
- 2021-12
- Publisher
- KOREAN SOC MECHANICAL ENGINEERS
- Citation
- Journal of Mechanical Science and Technology, 35(12), pp.5435-5444 Dec, 2021
- Abstract
- Mechanistic polymerization shrinkage and stress behaviors of dental composite
resins Filtek P90 (3M ESPE, USA) and Clearfil AP-X (Kuraray, Japan) were investigated using
CCD camera and digital image correlation (DIC) method during and after light irradiation. For
both resins, the interior of the resin part exhibited greater radial shrinkage strain (εr) due to
more mobility than the resin margin near the interface of the substrate ring, where a nonsymmetric distribution of εr was observed with a peak away from the center. DIC experiments
on the specimen surface showed that the maximum principal stresses obtained along the margin were 1.5-8.4 times larger than the corresponding values by FEM. The non-symmetric
shrinkage and the large shrinkage rate during light irradiation caused a significant increase in
the principal tensile stress along the interface at cured state.
- URI
- https://link.springer.com/article/10.1007/s12206-021-1114-yhttps://repository.hanyang.ac.kr/handle/20.500.11754/169453
- ISSN
- 1976-3824; 1738-494X
- DOI
- 10.1007/s12206-021-1114-y
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML