title: Effects of food-simulating liquids on the mechanical properties of a silorane-based dental composite.
abstract: The purpose of this study was to investigate the effects of food-simulating liquids (FSL) on the hardness and flexural strength (FS) of a new silorane-based composite and to compare it with methacrylate-based composites (MBCs). Four restorative materials (Filtek Silorane, P60, Z250, and Supreme XT) were used. Specimens for the FS and hardness measurements were fabricated in customized molds. Immediately after polymerization, the materials were stored in the following dietary simulating solvents at 37 degrees C for 1 week: distilled water, 0.02 N citric acid, heptane, and 75% aqueous ethanol solution. After conditioning, the FS and hardness values were measured. Data were subjected to ANOVA/Scheffé's test at a significance level of 0.05. The hardness and FS of Filtek Silorane were not significantly affected by FSL (p>0.05). Conversely, the hardness of MBCs significantly decreased after conditioning in water and ethanol (p<0.05). Similarly, the FS values of MBCs were significantly affected after conditioning in ethanol.
authors: Department of Operative Dentistry, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey. cyesilyurt@ktu.edu.tr
authors: Cemal
authors: C
authors: Yesilyurt
authors: Oguz
authors: O
authors: Yoldas
authors: Subutay Han
authors: SH
authors: Altintas
authors: Adem
authors: A
authors: Kusgoz
mesh_terms: D019343:Citric Acid / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry; D005027:Ethylene Oxide / Q000737:chemistry*; D005502:Food; D006244:Hardness; D006536:Heptanes / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D020366:Methylmethacrylate / Q000737:chemistry; D018583:Pliability; D011108:Polymers / Q000737:chemistry; D012821:Silanes / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C438835:Filtek P60 Composite Resin; C515951:Filtek Supreme Plus; C444701:Filtek Z250; D006536:Heptanes; D011108:Polymers; D012821:Silanes; D012833:Siloxanes; D012997:Solvents; D014867:Water; D020366:Methylmethacrylate; D019343:Citric Acid; D000431:Ethanol; D005027:Ethylene Oxide