title: Mystery of the separating tungsten carbide burs.
abstract: Three instances of tungsten carbide bur separation, one of which resulted in the patient swallowing the separated bur head are described. This spate of bur heads separating from the shank was associated with a cold sterilising solution used for disinfection.
authors.forename: K C
authors.initials: KC
authors.lastname: Lim
mesh_terms: D003343:Corrosion; D003737:Dental Cavity Preparation / Q000295:instrumentation*; D003754:Dental High-Speed Equipment; D004868:Equipment Failure; D005547:Foreign Bodies; D005976:Glutaral / Q000009:adverse effects*; D006801:Humans; D013242:Sterilization / Q000379:methods; D014414:Tungsten / Q000737:chemistry*; D017973:Tungsten Compounds
chemical_list: D017973:Tungsten Compounds; C002802:tungsten carbide; D005976:Glutaral; D014414:Tungsten