Diagnostic imaging of the ear, nose and throat called ENT is hot topic nowadays in the dentist professional are. It has traditionally been carried out with medical CT, MRI and standard radiography. In these days there is a transition towards using more cone-beam computed tomography or cone beam ct(CBCT) for certain diagnostic tasks in these areas. If you have not already know that CBCT enables various diseases of the ear, nose and throat to be imaged using an accurate to the earlier conventional use of CBCT in dentomaxillofacial radiology, the technique is being increasingly used in the diagnosis of diseases of the sinonasal area, for maxillofacial trauma and temporal bone diseases.
In the field of dentist CBCT has now become very popular. With clinicians because of its ability to image structures three dimensionally and at the same time to visualize both bony and soft tissue structures with extremely thin section high resolution images. The main advantages of CBCT over standard medical CT are the comparatively low doses of ionic radiation used the extremely thin sub-millimeter slices in axial, coronal and sagittal planes and subplanes, with additional automatically generated surface and volume reconstructions and the high resolution bone details of the maxilla, mandible and the temporal bones.
It is very common that in the sinonasal region, the origin of the site of infection in sinusitis can be effectively determined with accuracy and precision using CBCT and a fairly low dose of ionic radiation. Sinusitis can be of odontogenic origin, via a soft tissue density mass within the sinuses, originating from a carious tooth with defective restoration, or an extraction site with or without a radio graphically evident periapical lesion and musical thickening limited to the area of the tooth or extraction site in question. It is not surprise that sinusitis can also be of undetermined origin- a soft tissue mass with carious tooth and mucosal thickening not limited to the affected tooth. All these three types of sinusitis can be effectively imaged with CBCT. Its use in imaging diseases of the temporal bone and the inner ear has now been well established. Structures that can be particularly well-visualized include the ossicular chain, the bony labyrinth of the inner ear, the anatomy of the internal cochlear and the facial nerve. Reduced metal artifacts are noted with cochlear implant digital dental imaging, as well as the improved detection of small laser-induced lesions in the ossicular chain as compared to images from multidetector.
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