Effect of filler size and filler loading on wear of experimental flowable resin composites
| Autor: | Masaya Suzuki, Shiro Suzuki, Satoki Kawashima, Yoshihisa Taira, Koichi Shinkai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Filler (packaging)
Materials science Time Factors Surface Properties Dentistry operative Composite resins 02 engineering and technology engineering.material Dental Restoration Wear 03 medical and health sciences chemistry.chemical_compound In vitro techniques 0302 clinical medicine Reference Values Materials Testing Silicon carbide Ceramic Composite material Particle Size General Dentistry Analysis of Variance Diamond Reproducibility of Results 030206 dentistry Original Articles 021001 nanoscience & nanotechnology Resin Cements lcsh:RK1-715 chemistry Dental restoration wear visual_art lcsh:Dentistry Tukey's range test visual_art.visual_art_medium engineering Microscopy Electron Scanning Methacrylates Adhesive Particle size 0210 nano-technology |
| Zdroj: | Journal of Applied Oral Science v.26 2018 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP Journal of Applied Oral Science Journal of Applied Oral Science, Vol 26, Iss 0 (2018) Journal of Applied Oral Science, Volume: 26, Article number: e20160652, Published: 01 FEB 2018 |
| Popis: | The relationship between wear resistance and filler size or filler loading was clarified for the universal resin composite; however, their relationship in flowable resin composites has not been clarified. Objectives: The purpose of this study was to investigate the effect of filler size and filler loading on wear of experimental flowable resin composites by using a cyclic loading device. Material and Methods: Nine experimental flowable resin composites consisting of three different sizes (70, 200 and 400 nm) and loading (50, 55 and 60 wt%) of filler were prepared. Bowl-shaped cavities were prepared on a flat surface of ceramic blocks using a No. 149 regular cut diamond point. The cavities were treated with a silane coupling agent and an all-in-one adhesive and then filled with each experimental flowable resin composite. The restored surfaces were finished and polished with a 1500-grit silicon carbide paper. The specimens were subjected to an in vitro two-body wear test using a cyclic loading device. The localized worn surfaces were evaluated at 10,000, 20,000, 30,000, and 40,000 cycles using a computer-controlled three-dimensional measuring microscope (n=5). The volumetric wear loss of the materials was calculated automatically by the equipment. Data were statistically analyzed with two-way ANOVA and post hoc Tukey test. Results: Two-way ANOVA showed that the filler size significantly influenced wear volume (p0.05). A post hoc Tukey test detected significant differences in filler size between 70 nm and 400 nm, and 200 nm and 400 nm (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|