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- Title
Effect of ultraviolet light irradiation period on bond strengths between fiber- reinforced composite post and core build-up composite resin.
- Authors
ASAKAWA, Yuya; TAKAHASHI, Hidekazu; IWASAKI, Naohiko; KOBAYASHI, Masahiro
- Abstract
The aim of the present study was to characterize the effects of the ultraviolet light (UV) irradiation period on the bond strength of fiber-reinforced composite (FRC) posts to core build-up resin. Three types of FRC posts were prepared using polymethyl methacrylate, urethane dimethacrylate, and epoxy resin. The surfaces of these posts were treated using UV irradiation at a distance of 15 mm for 0 to 600 s. The pull-out bond strength was measured and analyzed with the Dunnett's comparison test (α=0.05). The bond strengths of the post surfaces without irradiation were 6.9 to 7.4 MPa; those after irradiation were 4.2 to 26.1 MPa. The bond strengths significantly increased after 15 to 120-s irradiation. UV irradiation on the FRC posts improved the bond strengths between the FRC posts and core build-up resin regardless of the type of matrix resin.
- Subjects
DENTAL bonding; PHYSIOLOGICAL effects of ultraviolet radiation; BOND strengths; FIBER-reinforced plastics; DENTAL resins
- Publication
Dental Materials Journal, 2014, Vol 33, Issue 1, p133
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2013-175