title: Fracture resistance of complex amalgam restorations with peripheral shelves used as resistance features.
abstract: This in vitro study compared various peripheral shelves (steps) as resistance features for complex amalgam restorations. Three different sizes of peripheral shelves were evaluated: 1 mm x 1 mm, 2 mm x 2 mm, and 1 mm cervically x 2 mm pulpally. The resistance of these features was compared to a control group that utilized two amalgam pins. The 1 mm x 1 mm shelf provided significantly less resistance than the other groups.
authors.affiliation: College of Dentistry, University of Oklahoma Health Sciences Center 73190.
authors.forename: S E
authors.initials: SE
authors.lastname: Reagan
authors.forename: S E
authors.initials: SE
authors.lastname: Gray
authors.forename: T J
authors.initials: TJ
authors.lastname: Hilton
mesh_terms: D000704:Analysis of Variance; D003722:Dental Alloys; D003723:Dental Amalgam; D003737:Dental Cavity Preparation / Q000379:methods*; D003772:Dental Pins; D006801:Humans; D008422:Materials Testing
chemical_list: D003722:Dental Alloys; D003723:Dental Amalgam; C072894:Valiant PhD