AdministratorWhat is a CT cone beam scan?
Dental cone beam computed tomography (CT) is a special type of x-ray equipment used when regular dental or facial x-rays are not sufficient. Your doctor may use this technology to produce three dimensional (3-D) images of your teeth, soft tissues, nerve pathways and bone in a single scan.
What is difference between cone beam and CT scan?
A traditional CT can provide detailed images of your teeth and jawbones, but Cone Beam CT provides even more detailed views and uses less X-ray radiation, making it not only more useful for the dentist, but safer for the patient.
Why would a dentist do a CT scan?
A CT scan is often used to diagnose cancer, musculoskeletal disorders, infections, and more. A dental CT scan creates a 3D image of dental structures, soft tissues, nerve pathways and bone in just one scan. A traditional CT scan involves your entire body being placed into a large tube to create the images.
Will a CT scan show a tooth infection?
An X-ray of the aching tooth can help identify an abscess. Your dentist may also use X-rays to determine whether the infection has spread, causing abscesses in other areas. Recommend a CT scan. If the infection has spread to other areas within the neck, a CT scan may be used to assess the extent of the infection.
Which is better CT or CBCT?
A CBCT has quicker motion compared to the spiral motion of a traditional CT scanner. It is therefore possible to conduct a CT scan using a CBCT scanner with lower doses of radiation. An example can be found in panoramic radiography.
How is cone beam CT done?
The CBCT technique consists of the use of a round or rectangular cone shaped X- ray beam with a single 360° scan where the X-ray source and a reciprocating array of detector simultaneously move around the patient’s head, which is stabilized with a head holder.
What is the most commonly used reconstruction technique in cone beam CT?
Reconstruction Algorithms The reconstruction algorithm most frequently used in CBCT is a modified Feldkamp algorithm. The Feldkamp algorithm is essentially a 3D adaptation of the filtered backprojection method used in fan-beam 2D reconstructions.
How much radiation in a dental cone beam CT scan?
The amount of radiation received from a cone-beam CT of the jaws will vary from approximately 18–200 µSv depending on the size of the field of view, resolution of the images, size of the patient, location of the region of interest, as well as the manufacturer settings.