Cone Beam Computed Tomography: A True Paradigm Shift

Dentistry is constantly evolving and with latest 3 dimensional imaging techniques diagnosis has become convenient for the clinician, with the reduced number of radiation exposure to the patient. One such technique now being used extensively in the field of orthodontics is cone beam computed tomography (CBCT). With the advent of CBCT orthodontic diagnosis and treatment planning has achieved a higher platform. The conventional imaging techniques are 2-D representation of 3-D structures hence suffer from several limitations. CBCT provides a better assessment tool than conventional radiographic imaging. With CBCT patient is exposed to a similar radiation to conventional radiographs and lesser than a medical computed tomography. CBCT in orthodontics is used for the diagnosis of impacted teeth, supernumerary teeth, root resorption, airway assessment, asymmetry evaluation, TMJ evaluation etc. With the introduction of various computer software in combination of CBCT generated images has widened the scope of its use. In future it can be used for customizing the treatment mechanics. CBCT provides an excellent tool for accurate and efficient diagnosis, treatment planning, patient management, education and better outcome. This review article frames the various uses of CBCT in orthodontics and its future implications.