Study of GDP work.
D002648:Child; D002675:Child, Preschool; D003442:Crowns; D003731:Dental Caries / Q000517:prevention & control / Q000628:therapy*; D003737:Dental Cavity Preparation / Q000145:classification; D003793:Dental Restoration, Permanent / Q000145:classification; D005792:General Practice, Dental; D006801:Humans; D012189:Retrospective Studies; D014094:Tooth, Deciduous / Q000473:pathology*