| Autor: |
Anna-Maria LE, Bell-Rönnlöf, Jenni, Jaatinen, Lippo, Lassila, Timo, Närhi, Pekka, Vallittu |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Dental materials journal. 38(6) |
| ISSN: |
1881-1361 |
| Popis: |
The aim of this in vitro study was to explore light transmission through an individually formed fiber-reinforced composite (FRC) post compared with two prefabricated FRC posts. Three different glass FRC posts from different manufacturers were used: two groups included prefabricated glass FRC posts (RelyX and GC Fiber Posts) and one group consisted of individually formed E-glass FRC posts with semi-interpenetrating polymer network (semi-IPN) polymer matrix (everStick Post). Various lengths of posts and lightprotected cylinders were made. The specimens were light-polymerized on the test tray of a light radiance testing device (MARC Resin Calibrator). Light transmission in the direction of fibers was registered. Light transmission decreased with increasing post length (p≤0.001; ANOVA) up to 12 mm in all post groups. The individually formed FRC post showed highest light transmission in all cylinder lengths (p0.001) compared to prefabricated FRC posts, which could benefit polymerization of post material and luting cement. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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