Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Paper
Retention force of fiber-reinforced composite resin post on resin composite for core buildup —Effects of fiber orientation, silane treatment and thermal cycling
Tomoko SOMEYAMasaaki KASAHARAShinji TAKEMOTOMasayuki HATTORI
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JOURNAL FREE ACCESS

2021 Volume 40 Issue 5 Pages 1264-1269

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Abstract

The purpose of this study was to investigate the effects of fiber orientation, silane treatment, and thermal cycling on the retention force of fiber-reinforced composite resin (FRC) posts on resin composite. Two types of FRC posts (linear and woven) were prepared with and without silane treatment. Pull-out test specimens were made of FRC posts and resin composite for core buildup. Specimens were either incubated in distilled water for 24 h or subjected to 10,000 thermal cycles. The maximum fracture load obtained by a pull-out test was defined as the retention force. Fracture modes were observed after the test. Fiber orientation and thermal cycling did not affect the retention force on resin composite, and the retention force was improved by silane treatment. Whereas, fiber orientation affected the fracture mode. The result showed woven fiber orientation could contribute to the mechanically interlocking with the resin composite.

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© 2021 The Japanese Society for Dental Materials and Devices
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