title: Three-year effect of unfilled resin dilution on water sorption of a light-cured microfill and hybrid composite resin.
abstract: This in vitro study compared water sorption for various intervals over a 3-year period for visible light-cured microfill and hybrid composite resin with and without unfilled resin dilutions. Statistically significant sorption increases were evident for the 960-day interval for certain dilutions. At 3 years the microfill control revealed a 0.72% relative water sorption increase and its various dilutions 1.92% to 2.36%. By comparison, the hybrid control exhibited an increase of 0.4% and its dilutions were 0.72% to 0.98%.
authors.affiliation: College of Dentistry, Section of Restorative and Prosthetic Dentistry, Ohio State University, Columbus, USA.
authors.forename: R P
authors.initials: RP
authors.lastname: Pagniano
authors.forename: W M
authors.initials: WM
authors.lastname: Johnston
mesh_terms: D000042:Absorption; D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D010316:Particle Size; D019279:Resin Cements; D014867:Water
chemical_list: D003188:Composite Resins; D019279:Resin Cements; D014867:Water; C083621:prisma microfine; C073466:Prisma APH