Dental caries is the most prevalent chronic disease affecting the human race. It impairs the quality of life for many people causing pain and discomfort. In addition, it puts a heavy financial burden on public health services. Its very high morbidity potential has brought this disease into the main focus of dental health professionals. In the quest for providing optimal dental care, the age old maxim of 'Prevention is better than cure holds true'. Therefore we have compiled this book which deals in detail with preventive strategies to control this disease. It serves as complete guide to prevention of caries from very basic measures such as mechanical debridement, fluoride application, antimicrobial agents to the very recent methods including genetic engineering, ozone therapy, etc.