Conservative dentistry deals with clinical practice of dentistry in clinical studies day by day new advancement. New studies related to dental materials and clinical trials are explored. The observations and results we get from such studies is explained on the basis of various statistical analysis. Therefore role of statistics in this branch of dentistry is an essential component of almost all trials and studies. To understand this we should have an idea of few concepts. This book explains this in a very simple and easy manner. Any research is unauthentic without a proper statistical analysis.