This book offers a detailed and clinically relevant overview of bioactive and biomimetic materials used in conservative dentistry and endodontics. It explores the scientific principles behind these materials, their properties, mechanisms of action, and interaction with dental tissues. Emphasis is placed on minimally invasive, biologically driven treatment approaches that promote tissue preservation and regeneration. Written for undergraduate and postgraduate students, academicians, and practicing clinicians, the book bridges current research with practical clinical applications, supporting evidence-based decision-making in modern restorative and endodontic practice.