This book is all about primary teeth morphology. In dentistry, the understanding of the dental anatomy characteristics, besides being essential in determining individual teeth morphology, has a clinical implication in several fields: pathology, radiology, orthodontics, prosthesis, oral surgery, and restorative dentistry. Even though primary teeth mimic the morphological features of permanent teeth, they possess particular anatomical and morphological features unique features unlike permanent successors. Accounting for these unique morphological features, treatment procedures and modalities differs for primary teeth. In treatment procedures like restorations, extra-coronal restoration and pulp therapy evaluation of morphological integrity of the tooth and root canal system is a condition for a successful endodontic treatment in primary molarsLack of knowledge regarding primary teeth features makes it difficult to follow proper treatment and results in harming primary dentition rather than saving it. Thus adequate knowledge on these criteria of primary teeth raise a bar in definite planning and treating the primary teeth the best way possible.