CT Imaging

What is a Cone Beam CT? 

CBCT is a compact, faster and safer version of the regular CT. Through the use of a cone shaped X-Ray beam, the size of the scanner, radiation dosage and time needed for scanning are all dramatically reduced. A typical CBCT scanner can fit easily into any dental ( or otherwise ) practice and is easily accessible by patients. The time needed for a full scan is typically under one minute and the radiation dosage is up to a hundred times less than that of a regular CT scanner.

What are some typical uses of CBCT?

CBCT is used by general dentists and specialists to improve diagnosis and treatment planning in the following cases:

Dental implants

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

Oral and maxillofacial surgery

  • Relationship of third molar roots to mandibular canal
  • Localization of impacted teeth, foreign objects
  • Evaluation of facial fractures and asymmetry
  • Orthognathic surgery planning

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

What are the advantages of CBCT?

  • Lower radiation dose than medical CT
    • Equivalent to -1 Full mouth series of radiographs (FMX) or 6-7 panoramic radiographs
    • Thyroid shield can be used in many cases
  • Comfortable for Patients
    • Open environment – no claustrophobia
    • Patient seated, facing out
    • Patient seated, facing out
  • Wheelchair accessible
  • Images available almost immediately on screen
  • Images can be imported into other software