A successful root canal therapy depends upon complete obliteration of root canal space by a dimensionally stable and biologically compatible material. The various techniques used for obturation include warm condensation, vertical condensation (System B), core techniques (Thermafil, Soft Core, Quick-Fill), thermoplasticized gutta-percha (Obtura), warm vertical compaction, and cold lateral condensation. This book aims to describe and compare the techniques and systems available for obturation of pulp space. It also gives a detail of advantages and disadvantages of these techniques. Choosing the obturation technique that is suitable according to the anatomic variation of the tooth in a particular case is essential for determining the long term endodontic success. Clinician should hence choose the obturating material & technique depending on the skills, experience and the root canal morphology. This book gives a detailed insight into this aspect.