The Ninth Edition of the definitive text on dental hygiene is significantly revised and updated to provide even more focused guidance on all aspects of dental hygiene in the clinical environment. Ideal for both students and practitioners, the book reviews the clinical and educational skills needed for successful practice. Six comprehensive sections address orientation, preparation for appointments, patient assessment, treatment, and patients with special needs. New features include a significantly revised art program, case-based exercises to reinforce understanding, procedure boxes to enhance technique, and ethics boxes. New ancillaries include a student workbook (sold separately) and instructor's Website.