title: Historical perspective.
authors.forename: Eric K
authors.initials: EK
authors.lastname: Curtis
mesh_terms: D003813:Dentistry / Q000145:classification* / Q000639:trends; D003815:Dentists / Q000145:classification*; D006801:Humans; D009275:Names; D019242:Oral Medicine / Q000145:classification* / Q000639:trends