title: Piagetian psychology: some principles as helpful in treating the child dental patient.
mesh_terms: D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D004532:Ego; D004644:Emotions; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007802:Language; D008273:Magic; D010377:Pediatric Dentistry; D011582:Psychological Theory; D014785:Vision, Ocular