title: Composite resin-amalgam compound restorations.
abstract: Extensive silver amalgam restorations in premolars and molars occasionally require sacrifice of healthy unsupported enamel walls or cusps. A posterior composite resin-amalgam compound technique has been proposed to conserve these structures. Microleakage was high at the enamel-amalgam interface, moderate at the composite resin-silver amalgam and dentin-composite resin interfaces, and minimal between the inner enamel and the composite resin. Light microscopy and scanning electron microscopy demonstrated that marginal adaptation of the silver amalgam to the composite resin of the cusps was acceptable and that penetration of the inner etched enamel to the composite resin was complete.
authors.affiliation: Department of Restorative Dentistry, University of Bologna, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Franchi
authors.forename: P
authors.initials: P
authors.lastname: Trisi
authors.forename: G
authors.initials: G
authors.lastname: Montanari
authors.forename: A
authors.initials: A
authors.lastname: Piattelli
mesh_terms: D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D003722:Dental Alloys; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D008855:Microscopy, Electron, Scanning; D008963:Molar; D019279:Resin Cements
chemical_list: D003188:Composite Resins; D003722:Dental Alloys; D019279:Resin Cements; C065771:P50 composite resin; C067788:scotchbond 2; C033470:Dispersalloy; D017438:Bisphenol A-Glycidyl Methacrylate