title: Unanswered Questions in Periodontology.
authors.affiliation: Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, Foster Hall, 3435 Main Street, Buffalo, NY 14214, USA. Electronic address: fas1@buffalo.edu.
authors.forename: Frank A
authors.initials: FA
authors.lastname: Scannapieco
mesh_terms: D006801:Humans; D010517:Periodontics