title: Board certification: 2-tiered system not the answer.
authors.forename: Glen
authors.initials: G
authors.lastname: Gardiner
authors.forename: K Michael
authors.initials: KM
authors.lastname: Hayes
authors.forename: Steven
authors.initials: S
authors.lastname: Hoagburg
authors.forename: Jon
authors.initials: J
authors.lastname: Ingleman
authors.forename: Thomas
authors.initials: T
authors.lastname: Moryl
authors.forename: James
authors.initials: J
authors.lastname: Williams
mesh_terms: D000367:Age Factors; D002568:Certification; D006801:Humans; D009970:Orthodontics / Q000193:education* / Q000592:standards; D013044:Specialty Boards; D014481:United States