title: Cavity lining in primary teeth.
abstract: METHODS
  Embase, Medline, Cochrane Central, Biomed Central and Open Grey databases and bibliographies of identified studies.
  
  
  METHODS
  Randomised controlled trials investigating humans with primary caries lesions receiving operative treatment involving caries removal and restoration, with minimum two treatment groups comparing different cavity treatments before restoration (no lining versus lining) were included.
  
  
  METHODS
  Data were extracted independently by two reviewers and study quality assessed using the Cochrane risk of bias tool. Random effect meta-analysis was carried out.
  
  
  RESULTS
  Three studies involving a total of 89 patients were included. All the studies involved primary teeth and were conducted in Brazil. Follow-up periods ranged from 26-53 months. All the studies were considered to be at high risk of bias. Restoring the cavity without lining did not significantly affect the risk of failure. The quality of the evidence was low.
  
  
  CONCLUSIONS
  Current evidence does not support strong recommendations to use or not to use liners after caries removal and before restoring cavities. Our findings are restricted to primary teeth after selective excavation, with only one liner (calcium hydroxide) being used for comparison.
authors.affiliation: Restorative Dentistry, King's College Dental Hospital and William Harvey Hospital (Kent, Surrey and Sussex Deanery), UK.
authors.forename: Ravi
authors.initials: R
authors.lastname: Chauhan
mesh_terms: D002126:Calcium Hydroxide; D003729:Dental Care; D003731:Dental Caries; D003736:Dental Cavity Lining; D006801:Humans; D014094:Tooth, Deciduous
chemical_list: D002126:Calcium Hydroxide