title: The use of ceramic drills on a zirconium oxide basis in bone preparation.
abstract: The favourable mechanical properties and high biocompatibility of the newly developed mixed ceramics composed of zirconium oxide and aluminium oxide have continuously extended the scope of their application. Rotating instruments on a zirconium oxide basis are regarded as superior to metal burs in dentoalveolar surgery in terms of favourable temperature effects on the surrounding bone tissue and the economic advantage that they wear slowly, enabling them to be used repeatedly. In this study ten round burs made of zirconium oxide and aluminium oxide mixed ceramics were used for typical dental-alveolar preparation types on an explanted pig jaw. Prior to the first and following the tenth application a scanning electron microscopic (SEM) analysis of possible wear signs was conducted. However, this revealed no evidence of wear or resulting loss of sharpness.
authors.affiliation: Clinic for Orthodontics and Preventive and Paediatric Dentistry, University of Greifswald Dental School, Greifswald, Germany. thomas.bayerlin@gmx.de
authors.forename: T
authors.initials: T
authors.lastname: Bayerlein
authors.forename: P
authors.initials: P
authors.lastname: Proff
authors.forename: G
authors.initials: G
authors.lastname: Richter
authors.forename: S
authors.initials: S
authors.lastname: Dietze
authors.forename: J
authors.initials: J
authors.lastname: Fanghänel
authors.forename: T
authors.initials: T
authors.lastname: Gedrange
mesh_terms: D000537:Aluminum Oxide; D000818:Animals; D002516:Ceramics; D003762:Dental Instruments; D004867:Equipment Design; D008855:Microscopy, Electron, Scanning / Q000379:methods; D013499:Surface Properties; D013552:Swine; D015040:Zirconium
chemical_list: D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide