[Scanning electron microscopy evaluation of wear of turbine rotary instruments].
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.
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D003754:Dental High-Speed Equipment; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
Valutazione al microscopio a scansione dell'usura di strumenti rotanti montati su turbina.