CBCT was introduced to dentistry just over 20 years ago, and initially largely applied to pre-implant planning. It has since been viewed as an indispensable tool in the assessment of patients and diagnosis of a wide range of lesions (which will be covered in the presentation), including those pertaining to the fields of endodontics and orthodontics. Although a voluminous literature has developed over that time, much of it simply outlines its use rather than evaluating its clinical value, namely ‘diagnostic impact’ and ‘therapeutic impact.’ This particularly important in fields where it is used regularly such as in endodontics.