title: One visit ceramic restorations made at the chairside: the CEREC machine.
abstract: The move towards restoring teeth with materials which more closely match the properties of the lost dental tissues is gathering momentum. Of the materials currently available, glass ionomer cements are adhesive to dentine and enamel, leach fluoride, have negligible contraction on setting and are tooth-coloured; but their abrasion resistance is poor. Composite materials can be bonded to enamel and dentine and are made in a range of tooth-coloured shades. Their polymerisation contraction is a problem and, although they are more abrasion resistant than glass ionomer cements, there is still some anxiety about this. Porcelain has good abrasion resistance but does not bond directly to dental tissues and the need to manufacture porcelain restorations in the laboratory adds to their cost and increases the number of clinical appointments necessary. The CEREC machine produces porcelain inlays at the chairside which are used in combination with composite and glass ionomer materials to produce a restoration which optimises the advantageous properties of all three materials. The restoration can be completed in a single appointment.
authors.forename: B G
authors.initials: BG
authors.lastname: Smith
authors.forename: J E
authors.initials: JE
authors.lastname: Cardwell
mesh_terms: D003188:Composite Resins; D003776:Dental Porcelain; D005899:Glass Ionomer Cements; D006801:Humans; D007284:Inlays
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements; D003776:Dental Porcelain