Oral health is considered to be one of the most important indicators of overall health, well-being, and quality of life. It encompasses a wide range of diseases and conditions such as dental caries, periodontal disease, tooth loss, oral cancer, oral manifestations of HIV infection, oro-dental trauma, noma, and birth defects including cleft lip and palate. Most oral diseases share modifiable risk factors, such as alcohol consumption, tobacco use, and unhealthy diets high in free sugars. The branch of medicine which is involved in the diagnosis, prevention, study and treatment of oral diseases is called dentistry. This book explores all the important aspects of oral health in the present-day scenario. Also included herein is a detailed explanation of the various concepts and applications of oral health. This book is a vital tool for all researching and studying this field.