This document provides information about endodontics and pulp space morphology. It defines endodontics as the study and treatment of the dental pulp and tissues surrounding the roots of the teeth. The document discusses the histology, physiology, microbiology, diagnosis and treatment of various pulp and periradicular conditions. It also describes the morphology of the pulp space, including the size, shape, number and curvature of root canals, for different types of teeth. Principles of access cavity preparation are outlined to locate all root canal orifices while conserving tooth structure. Potential errors during access cavity preparation are also noted.