Browse the corpus

New technologies have been introduced and evolved into dentistry in recent years. The need for 3-dimensional (3D) images has made cone beam computerized tomographies (CBCT) a valuable and popular diagnostic tool in dentistry.[1] Dental radiography is widely used as a diagnostic tool in daily dental practice. It is estimated that dentists are responsible for more than one-quarter of all medical radiographs in Europe. Since the discovery of X-rays 120 years ago, dental radiographs have been the primary source of diagnostic information for the oral and maxillofacial complex. However, their use is limited because 2D imaging techniques cannot display complex 3D anatomical structures and related pathologies.[2] In 1972 computed tomography (CT) was developed by Hounsfield; in 1973, it was reported to be used to diagnose with 3-dimensional (3D) images. In the late 1970s and early 1980s, Robb et al. performed fundamental research on cone-beam CT (CBCT). In the 1980s, CT imaging became widely used in dental teaching hospitals. This allowed 3D imaging of extensive inflammation and tumors for precise diagnosis and treatment planning. These images were not optimal for observing dental and periodontal structures. CT devices are large and expensive and expose patients to high doses of radiation. But they have become more compact and popular for dental implant surgeries.[1] In 1997 Arai and colleagues designed a more compact CT machine specially created for dentistry. It was a cone beam CT (CBCT) device for dental use called "Ortho-CT."[1]

The application of cone beam computed tomography (CBCT) has grown exponentially across dentistry, impacting different specialties and fields. Cone beam computed tomography imaging provides accurate measurements, improves the localization of impacted teeth, gives us visualization of airway abnormalities, can be helpful to identify and quantify asymmetry, assess periodontal structures, identify endodontic problems, and is beneficial to view condylar positions and temporomandibular joint (TMJ) bony structures.[21] Cone beam computed tomography is an excellent option when indicated and one of the greatest new technologies that have been introduced into dentistry in recent years. Dental healthcare workers need to be aware of its indications and applications. Therefore, the utilization of CBCT should be restricted to situations where its benefits outweigh the potential risks, and its usage should be limited to cases where it is justifiable. This will lead to better patient outcomes.