Perry, Dorothy A. Periodontology for the dental hygienist / Dorothy A. Perry, Phyllis Beemsterboer, Edward J. Taggart - 2nd. ed - Philadelphia : W.B. Saunders, 2001 - xvii, 429p. : ill. ; 26cm. Includes bibliographical references and index Index : p.417-429 ISBN: 0721685595 RM168.84 Subjects--Topical Terms: Periodontal DiseasesPeriodontics National Library of Medicine Call No.: WU240