关键词: 锥形束CT, 牙齿形态, 髓腔形态, 根管形态

Abstract: Cone beam CT（CBCT）imaging technology has been widely used in the field of oral diagnosis and treatment，teaching and scientific research for its advantages of minimal image distortion，high spatial resolution，providing three dimensional images，short scanning time and lower radiation dose compared with traditional CT. In the field of operative dentistry and endodontics，CBCT can be used not only to accurately measure the morphological characteristics of teeth，but also to effectively observe and measure the shape and number of dental pulp chamber and root canals，especially the special variation of pulp chamber and root canals. This article reviews the application of CBCT in the morphological researches of teeth and root canal system in recent years.

Key words: cone beam CT, teeth morphology, dental pulp chamber morphology, root canal morphology