title: [Scanning electron microscopy evaluation of wear of turbine rotary instruments].
abstract: A wear test was conducted to evaluate carbide and diamond dental burs, in air turbines at 400,000 r.p.m., by using a dentine-enamel substrate. There is less variability within each bur type. All of the burs showed a decreased ability to make a standard cut with succeeding trials. Generally, a linear dulling rate was observed with a progressive reduction of cutting effectiveness, except for middle grain burs, that showed better characteristics among tested burs.
authors.forename: M
authors.initials: M
authors.lastname: Micci
authors.forename: G
authors.initials: G
authors.lastname: Gallina
authors.forename: P
authors.initials: P
authors.lastname: Messina
authors.forename: V
authors.initials: V
authors.lastname: Marciano
authors.forename: F
authors.initials: F
authors.lastname: Curiale
mesh_terms: D003754:Dental High-Speed Equipment; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
vernacular_title: Valutazione al microscopio a scansione dell'usura di strumenti rotanti montati su turbina.