title: Rate of elution of leachable components from composite.
abstract: The uptake of solvent and the elution of molecules from a dental composite and an unfilled resin were monitored with time during soaking in either water or an ethanol/water mixture. The results showed that approximately 50% of the leachable species were eluted from the composite within three hours of soaking in water, while 75% of the leachable molecules were eluted into the ethanol/water mixture. Elution of nearly all of the leachable components was complete within a 24-hour period in either solvent. The study lends support to the view that dental composites do not provide a chronic source of unreacted monomer to the pulp or other oral tissues, due to a rapid and complete elution of the molecules.
authors: Oregon Health Sciences University, Portland.
authors: J L
authors: JL
authors: Ferracane
authors: J R
authors: JR
authors: Condon
mesh_terms: D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins / Q000737:chemistry*; D000431:Ethanol; D013997:Time Factors; D014867:Water
chemical_list: D003188:Composite Resins; D014867:Water; D000431:Ethanol; D017438:Bisphenol A-Glycidyl Methacrylate