QUART DVTap

DIN 6868-161 CBCT Image Quality Test Phantom

Only one exposure is necessary to create a 3D data set containing all required parameters to evaluate CBCT image quality. Automated evaluation is performed with the unique QUART DVTtec software.

The phantom can be used for field sizes from 4x4cm to large fields-of-view (FOV). A universal holder or customised phantom holders are available for easy and reproducible positioning.

Cone Beam CT (CBCT)

Cone Beam CT (CBCT) is an X-ray based imaging technique that, like a conventional medical CT scan, provides fast and accurate visualisation of bony anatomical structures in three dimensions. In another words, CBCT produces a 3-dimensional images of your teeth and jaws.

It is also sometimes called “Digital Volumetric Tomography” (DVT) or other alternative names.

Unlike CT-scan, CBCT scanning resolution is higher, with less artefact and scatter. The scan field of view can also be reduced to image smaller volumes and lower the radiation dose associated with each scan.

CBCT image in 3D, with vertical, coronal and axial cross-section plane

CBCT scans are useful in many different types of dentistry, especially for dental implant planning, managing impacted teeth and root canal treatments, basically to get the 3D images of the teeth and jaws. It is used by general dentists and specialists to improve diagnosis and treatment planning in the following cases:

Dental implants

• Size and shape of ridge, quantity and quality of bone
• Position and orientation of implants insertion
• Location of anatomic structures: mandibular canal, submandibular fossa, incisive canal, maxillary sinus
• Need for bone graft, sinus lift
• Acquire for implant planning software

Oral and maxillofacial surgery

• Orthognathic surgery planning
• Localization of impacted teeth, foreign objects
• Relationship of third molar roots to mandibular canal
• Evaluation of facial fractures and asymmetry
• Oral and maxillofacial pathology
• Localization and characterization of lesions in the jaws
• Effect of lesion on jaw in 3rd dimension: expansion, cortical erosion, bilateral symmetry
• Relationship of lesion to teeth and other structures

Orthodontics

• Treatment planning for complex cases when 3D information needed to supplement (or substitute for) other imaging
• Patients with cleft palate
• Impacted/missing teeth
• Root angulation, root resorption
• Temporomandibular joint
• Osseous structures of TMJ
• Relationship of condyle and fossa in 3D

FAQ on CBCT

When should CBCT be used?

• Whenever information in the 3rd dimension is needed for the diagnosis, treatment planning, or management of conditions in the jaws and the maxillofacial complex.

What does the scan look like when it is done?

• The CBCT examination produces 3-dimensional pictures of the hard and soft tissue of your face. The size of the volume depends on the scanner and your particular clinical needs. The information can be viewed on a computer screen in different cross-section plane and can be rotated by the dentist to help plan treatment.

What is the difference between ordinary X-ray pictures and CBCT?

• Ordinary X-ray images (such as OPG) are 2-dimensional, flat, pictures. Your teeth and jaws are 3-dimensional, so 2-dimensional images may not give the best information.