![]() Similarly, Caglayan & Tozoglu ( 2012) conducted a review of 207 consecutive CBCT scans and reported that the highest number of incidental findings was noted within the airway structures (51.8%), followed by the presence of impacted teeth (21.7%), TMJ-associated lesions (11.1%), endodontic lesions (4.3%), condensing osteitis (1%), and miscellaneous other processes (2.9%). Of these findings, 16.1% required intervention/referral and 15.6% required monitoring the remainder (68.3%) required no further treatment. Price and colleagues (2012) reviewed 272 consecutive CBCT scans and found that the most prevalent incidental discoveries were airway-associated findings (35%), soft tissue calcifications (20%), lesions of bone (17.5%), temporomandibular joint (TMJ 15.4%), endodontic etiology (11.3%), developmental dental lesions (0.7%), and pathologic lesions (0.1%). Not surprisingly, individual studies have reported different frequencies of these incidental findings, depending on the field of view (FOV) employed, the average age of the population studied, and the method used to categorize these findings (Miles, 2006, 2010 Cha et al., 2007 Rogers et al., 2011). The frequency of incidental findings identified by CBCT has been reported to be as high as 3.2 findings per scan (Price et al., 2012). In addition, CBCT scans may reveal occult pathology and incidental findings of varying clinical significance located in structures outside a dentist’s conventional area of expertise. ![]() Since the introduction of CBCT is relatively recent, many dentists have not been trained to identify the cross-sectional anatomy visualized in CBCT imaging an overview is provided in Chapter 9. The principal limitation of CBCT is that the soft tissue resolution is limited to visualization of the soft tissue profile, the airway, and the relatively higher density muscles and major salivary glands. Dental providers, who previously were limited to two-dimensional (2D) images of three-dimensional (3D) anatomical structures, now have the ability to visualize the hard tissues of the head and neck in all the desired planes as well as in 3D reconstructions. The introduction of cone beam computed tomography (CBCT) to dentistry in the late 1990s transformed the way the profession as a whole analyzes the oral and maxillofacial complex. Detection of Incidental Findings in Cone Beam Computed Tomography Imaging and Their Clinical ImplicationsĮrika Benavides, DDS, PhD, and Paul C.
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