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CBCT

Cone Beam Computed Tomography- (CBCT)

Cone beam computed tomography (or CBCT, also referred to as C-arm CT, cone beam volume CT, or flat panel CT) is a medical imaging technique consisting of X-ray computed tomography where the X-rays are divergent, forming a cone.

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.

During dental imaging, the CBCT scanner rotates around the patient's head, obtaining up to nearly 600 distinct images. For Interventional Radiology, the patient is positioned offset to the table so that the region of interest is centered in the field of view for the cone beam. A single 200 degree rotation over the region of interest acquires a volumetric data set. The scanning software collects the data and reconstructs it, producing what is termed a digital volume composed of three-dimensional voxels of anatomical data that can then be manipulated and visualized with specialized software<

First in Cone Beam, Accurate in Results


  • Large FOV to include the entire mandible and maxilla for a complete diagnosis.

  • Latest technology utilized to create perfect panoramic images with an accurate focal trough over the whole arch.

  • New generation of the NNT Software for all types of image reconstructions and analyses.

  • Detecting, Measuring and Treating Jaw Tumors.

  • Accurate Placement of Dental Implants.

  • Diagnosing Temporomandibular Joint Disorder (TMJ).

  • Evaluation of the Jaw, Sinuses, Nerve Canals and Nasal Cavity.

  • Surgical Planning for Impacted Teeth.

  • Reconstructive Surgery.

How should I prepare?


A A cone beam CT examination requires no special preparation.

  • Prior to the examination, you may be asked to remove anything that may interfere with the imaging, including metal objects, such as jewelry, eyeglasses, hairpins and hearing aids. Although removable dental work may need to be removed, it is advisable to bring these to your examination, as your dentist or oral surgeon may need to examine these as well.

  • Women should always inform their dentist or oral surgeon if there is any possibility that they are pregnant.

How does the procedure work?


During a cone beam CT examination, the C-arm or gantry rotates around the head in a complete 360-degree rotation while capturing multiple images from different angles that are reconstructed to create a single 3-D image.

MULTIPLE FIELDS OF VIEW


The scanner’s FOV determines how much of the patient’s anatomy will be visualized. If using a flat panel detectors (FPD), the dimensions of their cylindrical FOV can be de¬scribed as diameter by height (DxH). Nowadays, the need to scan different R.O.I. with different dimensions is regulated by international standards in order to reduce the effec¬tive dose to the patient following the “As Low As Reasonably Achievable” (ALARA) dose principles. The use of a small FOV (on user-defined region in endo, perio, implant surveys and for the localization of impacted teeth) in addition to reducing the dimension of the irradiated region, provides a dramatic increase in the accuracy and resolution of images for all pathologies where it is necessary to identify very small details at high definition. On the contrary, with one single rotation, a bigger FOV permits the operator to scan patients where the referring doctors need to see the major part of the anatomical regions of the patient (e.g. child’s teeth check-up, sinus pathologies, both jaws, implant surveys or maxilla and sinuses). Even in these cases, NewTom VG3 has different dose protocols in order to further reduce the dose. The NewTom Team has discovered the perfect balance between FOV, dose and accuracy, using different dose protocol

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