This book offers comprehensive review and the best strategies for the challenging dental hygiene licensing exams. Features include: Overview of National, Regional, and State Hygiene Board ExamsReview of the content covered by the exam, from periodontics to oral health promotionDetailed answer explanations to reinforce knowledge and skillsFull-length simulated National Board examIllustrations of key dental conceptsComplete case studies with color radiographs and imagesThe National Board exam is a paper and pencil exam. It is offered three times a year: March, July, and December, either at test centers or at dental school sites. To become a licensed dental hygienist, one must pass the National Board Dental Hygiene Exam. A score of 75 (of 99 points) is required to pass.