title: PSR: some probing questions. Periodontal screening and recording.
authors.forename: M J
authors.initials: MJ
authors.lastname: Melkers
mesh_terms: D003792:Dental Records; D006801:Humans; D010510:Periodontal Diseases / Q000175:diagnosis*; D010517:Periodontics / Q000379:methods; D012307:Risk Factors