title: Electrochemical characterisation of dental alloys: its possibilities and limitations.
abstract: Dental alloys are metallic biomaterials which have a broad variation of composition compared to technical alloys. It is therefore in the interest of patients and technicians to conduct a good assessment of the electrochemical behaviour of dental alloys in order to collect information about their corrosion resistance. The purpose of this work was to demonstrate possibilities and limitations of two electrochemical techniques: the voltammetry of immobilised microparticles (ViMP) onto lead, and cyclic voltammetry measurements with the help of the mini-cell system (MCS). Based on fingerprints obtained from ViMP it was possible to analyse and differentiate the dental alloys. The results obtained by MCS were comparable with ViMP, but give a better understanding of the corrosion behaviour of the materials.
authors.affiliation: Dental Materials and Biomaterial Research, Dental School, Charité Medical University of Berlin, Schuhmannstr. 20/21, 10117, Berlin, Germany. wolf-dieter.mueller@charite.de
authors.forename: Wolf-Dieter
authors.initials: WD
authors.lastname: Mueller
authors.forename: C
authors.initials: C
authors.lastname: Schoepf
authors.forename: M L
authors.initials: ML
authors.lastname: Nascimento
authors.forename: A C
authors.initials: AC
authors.lastname: Carvalho
authors.forename: M
authors.initials: M
authors.lastname: Moisel
authors.forename: A
authors.initials: A
authors.lastname: Schenk
authors.forename: F
authors.initials: F
authors.lastname: Scholz
authors.forename: K P
authors.initials: KP
authors.lastname: Lange
mesh_terms: D003300:Copper / Q000032:analysis; D003722:Dental Alloys / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods*; D006046:Gold / Q000032:analysis; D006801:Humans; D010165:Palladium / Q000032:analysis; D012834:Silver / Q000032:analysis; D014001:Tin / Q000032:analysis; D015032:Zinc / Q000032:analysis
chemical_list: D003722:Dental Alloys; D012834:Silver; D010165:Palladium; D014001:Tin; D006046:Gold; D003300:Copper; D015032:Zinc