title: Effects of cements and eugenol on properties of a visible light-cured composite.
abstract: An in vitro study evaluated the effects of barrier materials on mechanical properties of a visible light-cured composite restorative. The composite was cured and aged over a widely used cavity liner (Dycal), various cements (Fleck's, Durelon, Vitrabond, ZOE B & T) and free eugenol and tested at seven and 28 days. The properties of interest were tensile stress (strength) at rupture, compressive strain (deformation at rupture), and stress-strain ratio at rupture. The experiment indicated that underlying barrier materials exerted neither a beneficial nor an adverse effect upon the restorative's ability to withstand compressive strain and tensile stress (P < 0.05).
authors.affiliation: Department of Pediatric Dentistry, University of Tennessee, Memphis.
authors.forename: T L
authors.initials: TL
authors.lastname: Powell
authors.forename: E F
authors.initials: EF
authors.lastname: Huget
mesh_terms: D000704:Analysis of Variance; D002126:Calcium Hydroxide / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003736:Dental Cavity Lining; D003799:Dental Stress Analysis; D005054:Eugenol / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry; D008422:Materials Testing; D008903:Minerals / Q000737:chemistry; D011076:Polycarboxylate Cement / Q000737:chemistry; D013718:Tensile Strength; D013997:Time Factors; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry; D015036:Zinc Phosphate Cement / Q000737:chemistry
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements; D008903:Minerals; D011076:Polycarboxylate Cement; D015035:Zinc Oxide-Eugenol Cement; C074741:Silux Plus; D005054:Eugenol; C025702:Dycal; D015036:Zinc Phosphate Cement; D002126:Calcium Hydroxide