The publics interest in health and beauty has become an engine that continues to drive the demand for cosmetic dental procedures.Occlusion is an integral part in increasing aesthetics. To study the amount of deviation from normal occlusion, one needs to study the amount of deviation by diagnostic measures which are set for general set of population.Many advancements have taken place as far as indices are considered. Every index has its own pros and cons. At present there is no such one particular index to meet all the requisites of a perfect index but Dental Aesthetic Index has been chosen to be the better amongst all. This comprehensive text book is a detailed,heavily illustrated presentation of Dental aesthetic index.