Book excerpt: From the Publisher: The cornerstone text of almost every dental hygienists library is now in its thoroughly updated Tenth Edition. Written in a straightforward, concise outline format, this text equips both students and practitioners with the clinical and educational skills needed for successful practice. Features include full-color artwork and photographs, case-based exercises, procedure boxes, and ethics boxes. The Tenth Edition presents the latest technical advances and research findings and includes a new chapter on teeth whitening.