There has always been an interest for a three-dimensional record of the craniofacial region without being materialized in the
clinic either due to excessive radiation or difficulty of the method. Cone beam computer tomography (CBCT), introduced to the
dental community in 1998 open new possibilities due to less radiation, cost and management. This presentation explains the limitation
of our actual records and the need to obtain a unique record with all different structures on it, such as bone, dental,
airway and soft-tissues. In this first part of a serial we are going to explain the principles and the development of CBCT, define
the area of interest for the orthodontist, vision format as well as indications of this technology. In a second part we will deal with
clinical applications of this new imaging.
(Rev Esp Ortod. 2008;38(4):277-288)