Comparative study of the fatigue strength of five acrylic denture resins
Journal of the Mechanical Behavior of Biomedical Materials, cilt.3, sa.8, ss.636-639, 2010 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 3 Sayı: 8
- Basım Tarihi: 2010
- Doi Numarası: 10.1016/j.jmbbm.2010.06.005
- Dergi Adı: Journal of the Mechanical Behavior of Biomedical Materials
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.636-639
- Anahtar Kelimeler: Acrylic resins, Denture base materials, Fatigue resistance
- İstanbul Kent Üniversitesi Adresli: Hayır
Özet
The aim of this in vitro study was to compare the fatigue resistance of three kinds of heat-polymerized acrylic resins (conventional heat-polymerized, rapid heat-polymerized, high impact acrylic resin), a kind of visible light-cured resin and a kind of self-cured acrylic resin. A total of 60 notched and un-notched specimens (65 mm × 10 mm × 3 mm) were fabricated, 12 from each material. The fatigue resistance was measured by applying repeated three-point bending deflection to the specimens. For statistical analysis, Kruskal-Wallis test followed by Dunn's multiple comparison tests were used. The Kruskal-Wallis test revealed significant differences in the fatigue resistance among some groups (p<0.05). Conventional- and rapid-heat polymerized resins had lower fatigue resistance values than heat-polymerized high impact acrylic resin, but the differences were statistically non-significant according to Dunn's test (p>0.05). High impact acrylic resin was also found to have significantly higher fatigue resistance value than that of self-cured resin and light-cured resin (p<0.05). Further, there was no statistically significant difference between the mean fatigue resistance value of visible light-cured resin and self-cured resin (p>0.05). © 2010 Elsevier Ltd.