title: Marginal ridge strength of restored teeth with modified Class II cavity preparations.
abstract: This study compared marginal ridge fracture resistance in two groups of teeth restored with modified Class II cavity preparations, with control groups. The results indicated that the composite resin and dental amalgam restored teeth fractured at compressive loads that were not statistically different from those of the control (unprepared, intact) teeth. The marginal ridges of the unrestored, prepared teeth were significantly weaker.
authors.affiliation: Department of Restorative Dentistry, Virginia Commonwealth University, Richmond 23298-0566.
authors.forename: D
authors.initials: D
authors.lastname: Covey
authors.forename: T M
authors.initials: TM
authors.lastname: Schulein
authors.forename: F J
authors.initials: FJ
authors.lastname: Kohout
mesh_terms: D003188:Composite Resins; D003723:Dental Amalgam; D003737:Dental Cavity Preparation / Q000379:methods*; D003743:Dental Enamel / Q000502:physiology; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D006801:Humans; D008964:Molar, Third; D013314:Stress, Mechanical; D014070:Tooth / Q000502:physiology*; D014082:Tooth Fractures / Q000503:physiopathology
chemical_list: D003188:Composite Resins; D003723:Dental Amalgam