In the field of dentistry 3D printing is entrenching itself as an advancing forefront. Additive manufacturing, or 3D printing, is becoming a viable alternative to subtractive manufacturing, or milling in the field of computer-aided manufacturing. Material research for use in additive manufacturing is ongoing, and a wide range of materials are being used or developed for use in dentistry. Digital technology and 3D printing have significantly elevated the rate of success, improving the quality and accuracy of dental treatment. Educational programs that use 3D printed models encourage students and trainees to improve their dental expertise. This book aims to review the various 3D printing techniques, materials for fabricating models, and applications in dentistry.