title: Restoration of class II cavities in primary molar teeth with conventional and resin modified glass ionomer cements: a systematic review of the literature.
abstract: OBJECTIVE
  To review the literature concerning the restoration of primary teeth with glass ionomer (GIC) or resin modified glass ionomer cement (RMGI) used in conventional class II cavities.
  
  
  METHODS
  A search of the literature identified through Medline between 1966 and 2006 using the key words: glass ionomer, resin modified, glass polyalkenoate, deciduous/primary teeth. Studies that used ART or tunnel preparations were excluded. Papers of relevant clinical studies (prospective and retrospective) were assessed and graded using predetermined criteria. Papers were graded according to the number of criteria met as (A >90%, B1 = 75%, B2 = 50%, C <50%).
  
  
  RESULTS
  The search identified 411 papers, from which an application of the inclusion criteria yielded 20 studies. Of these, 2 were rated B1 and 18 B2. Failure rates varied from 6.6% to 60% for GIC, and from 2% to 24% for RMGI.
  
  
  CONCLUSIONS
  GIC cannot be recommended for class II cavities in primary molars. There is evidence that RMGIC can perform successfully in small to moderate sized class II restorations.
authors: Dept. Paediatric Dentistry Unit, School of Dentistry, Cardiff University, Wales. chadwickbl@cardiff.ac.uk
authors: B L
authors: BL
authors: Chadwick
authors: D J P
authors: DJ
authors: Evans
mesh_terms: D003188:Composite Resins; D003737:Dental Cavity Preparation; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008963:Molar; D014094:Tooth, Deciduous
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements