title: Microabrasion of cast metal margins--a warning.
abstract: Plastic test patterns were milled to simulate casting margins and were cast in a variety of dental alloys. The cast specimens were exposed to horizontal and vertical streams of low-pressure microabrasion with 50 microm aluminum oxide particles. Post-exposure measurements show all specimens were affected by microabrasion. Dentists and laboratory technicians who use microabrasion must be aware of the potential damage to casting margins.
authors.affiliation: Department of Prosthodontics, University of Texas Health Science Center, San Antonio, TX 78229-3900, USA. mansueto@uthscsa.edu
authors.forename: Michael A
authors.initials: MA
authors.lastname: Mansueto
authors.forename: Ronald G
authors.initials: RG
authors.lastname: Verrett
authors.forename: Rodney D
authors.initials: RD
authors.lastname: Phoenix
mesh_terms: D020906:Air Abrasion, Dental / Q000009:adverse effects*; D003722:Dental Alloys / Q000737:chemistry*; D018772:Dental Marginal Adaptation; D008422:Materials Testing / Q000379:methods
chemical_list: D003722:Dental Alloys