title: Systematic review on highly viscous glass-ionomer cement/resin coating restorations (Part II):  Do they merge Minamata Convention and minimum intervention dentistry?
abstract: BACKGROUND
  With the Minamata Convention the use of mercury will be phased down, and this undoubtedly will have an effect on dental treatment regimens and economic resources. Composite resin restorations are considered viable alternatives to amalgam fillings; however, these will not be covered completely by health insurance systems in many countries. Recently, a high-viscosity glass-ionomer cement (hvGIC) processed with a resinous coating (RC) has been introduced, and has been marketed as a restorative material in load-bearing Class I cavities (and in Class II cavities with limited size), thus serving as a possible alternative to amalgam fillings.
  
  
  OBJECTIVE
  To discuss the outcome based on the evaluation presented in Part I of this paper, and to critically appraise the methodologies of the various studies.
  
  
  RESULTS
  Two of the included studies were industry-funded, and status of the other clinical trials remained unclear. Quality of study reporting was considered perfectible. The use of a light-cured nanofilled resin coating material would seem advantageous, at least when regarding short- and medium term outcomes.
  
  
  CONCLUSIONS
  Within the respective indications and cavity geometries, the hvGIC/RC approach would seem promising, could merge the phase-down of mercury and the objectives of minimally invasive treatment to some extent, and might be a restorative alternative for patients suffering from allergies or not willing to afford other sophisticated or expensive techniques. These recommendations are based on studies evaluating EQUIA Fil (GC), but are not transferable to clinical perspectives of the glass hybrid successor product (EQUIA Forte; GC).
authors.forename: Andrej M
authors.initials: AM
authors.lastname: Kielbassa
authors.forename: Georg
authors.initials: G
authors.lastname: Glockner
authors.forename: Michael
authors.initials: M
authors.lastname: Wolgin
authors.forename: Karl
authors.initials: K
authors.lastname: Glockner
mesh_terms: D003188:Composite Resins / Q000737:chemistry / Q000627:therapeutic use*; D003723:Dental Amalgam / Q000633:toxicity; D003731:Dental Caries / Q000628:therapy*; D003793:Dental Restoration, Permanent / Q000379:methods*; D005899:Glass Ionomer Cements / Q000737:chemistry / Q000627:therapeutic use*; D055115:Light-Curing of Dental Adhesives; D008628:Mercury / Q000633:toxicity; D014783:Viscosity
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements; D003723:Dental Amalgam; D008628:Mercury