Hall’s Critical Decisions in Periodontology, Fifth Edition, is designed to guide students and practitioners in applying their decision-making knowledge in a structured and logical manner whether in diagnosis, treatment selections and options, procedures in various treatments, or evaluating outcomes. This text is organized by clinical problems, all designed to help you make on-target decisions for optimal outcomes. Formerly called Decision Making in Periodontology, this text provides new techniques on periodontal therapy are presented. The contributors to the text represent both north American and international thinking.