Periodontal instruments are essential tools used to treat and manage periodontal diseases by addressing local factors and diseased tissue around the teeth. Effective treatment relies on using specialized instruments to remove calculus, plane root surfaces, and eliminate diseased tissue. This book provides a comprehensive guide to various periodontal instruments, including ultrasonic devices, sickles, hoes, chisels, and curettes. It covers the importance of understanding instrument design-such as the cutting edge, ergonomic handles, and balanced instruments-to improve clinical outcomes. The book outlines the parts of instruments, their design influences, and maintenance tips, enhancing clinician skills and patient care. It also discusses the history, classification, and advancements in periodontal instruments, including future prospects like computer-assisted imaging and robotics. By mastering the use and maintenance of these tools, clinicians can enhance their efficiency and the quality of patient treatment.