title: Lactic acid jet test: in vitro erosion rates of glass ionomer dental cements containing radiopacifying elements.
abstract: The lactic acid jet test erosion rates were measured for 13 radiopaque glass ionomer dental materials obtained from a number of manufacturing sources. The erosion rate was compared with that found for the non-radiopaque restorative from the same manufacturer to determine whether the addition of an extra element had affected the resistance to erosion. Six materials were not significantly affected, six showed a significant increase in erosion rate. Only one material showed a reduced erosion rate. Materials containing a high proportion of any additive could show an increased erosion rate. Glass ionomer cements with or without radiopacifying elements had low erosion rates compared with other dental materials.
authors.affiliation: Department of Biomaterials, Institute of Dental Surgery, London, UK.
authors.forename: J A
authors.initials: JA
authors.lastname: Williams
authors.forename: R W
authors.initials: RW
authors.lastname: Billington
authors.forename: G J
authors.initials: GJ
authors.lastname: Pearson
mesh_terms: D000497:Alloys / Q000737:chemistry; D003287:Contrast Media / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000737:chemistry*; D007773:Lactates / Q000737:chemistry*; D019344:Lactic Acid; D012834:Silver / Q000737:chemistry; D014001:Tin / Q000737:chemistry; D015032:Zinc / Q000737:chemistry
chemical_list: D000497:Alloys; D003287:Contrast Media; D003738:Dental Cements; D005899:Glass Ionomer Cements; D007773:Lactates; D019344:Lactic Acid; D012834:Silver; D014001:Tin; D015032:Zinc