title: Fracture at the margins of amalgam as predicted by creep, zinc content, and gamma-2 content.
abstract: Fracture at the margins of amalgams as predicted by an equation suggested by Mahler using creep, zinc content, and gamma-2 content was tested on the three-year clinical results of 12 alloys. The results tend to agree with Mahler's results when gamma-2 and non-gamma-2 alloys are used in the same equation. This appears, however, to be an effect of combining two distinctly different types of alloys. It is suggested that, when non-gamma-2, low creep alloys are evaluated, the equation suggested by Mahler would be inappropriate. In addition, for non-gamma-2 alloys, the prediction using creep values does not appear to be appropriate.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003722:Dental Alloys / Q000032:analysis; D003723:Dental Amalgam / Q000032:analysis; D006801:Humans; D066298:In Vitro Techniques; D013314:Stress, Mechanical; D013499:Surface Properties; D015032:Zinc / Q000032:analysis
chemical_list: D003722:Dental Alloys; D003723:Dental Amalgam; D015032:Zinc