Dental caries is commonly known as tooth decay. It refers to the decay of teeth caused by bacteria and the acids produced by them. It causes pain while eating. It can also lead to tooth loss, dental abscess and inflammation of the tissues around the teeth. Mutans streptococci, most prominently Streptococcus mutans and Streptococcus sobrinus, and lactobacilli are common types of bacteria that cause dental cavities. X-rays and lasers are used to detect dental caries. It can be prevented by practicing a healthy oral health regime such as regular teeth cleaning and flossing, avoiding a sugar intensive diet and lower intake of fluorides. Dental caries is often classified to represent the severity of tooth decay accurately. It may be classified on the basis of location, rate of progression, etiology and affected hard tissues. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the assessment and management of dental caries. It includes contributions of experts and dentists, which will provide innovative insights. For all those who are interested in dental caries, this book can prove to be an essential guide.