Cone Beam CT Scan
A CBCT scan, also known as Cone Beam Computerized Tomography, is an x-ray technique that produces 3D images of your skull that allows visualization of internal bony structures in cross section rather than as overlapping images typically produced by conventional x-ray exams. CBCT scans are primarily used to visualize bony structures, such as teeth and jaws, rather than soft tissue such as tongue or gums.
Advantages of a CBCT Scan over conventional x-rays
A conventional x-ray of your mouth limits your dentist to a two-dimensional (“2D”) visualization. Diagnosis and treatment planning can require a more complete understanding of complex three-dimensional (“3D”) anatomy. CBCT examinations provide a wealth of 3D information which may be used when planning for dental implants, surgical extractions, maxillofacial surgery, advanced dental restorative procedures, and other dental procedures. Benefits of CBCT scans include: A. Higher accuracy when planning implant placement surgery; B. Greater chance for diagnosing conditions such as vertical root fractures that can be missed on conventional x-ray films; C. Higher quality and more informative images which reduce the likelihood of unnecessary dental treatment; D. Better diagnosis of third molar (wisdom teeth) positioning in proximity to vital structures such as nerves and blood vessels prior to removal; E. Enhanced ability to view the affected area and determine an appropriate treatment plan before treatment is started.
Radiation
CBCT scans, like conventional x-rays, expose you to radiation. In the office of Dr. Donna Thomas-Moses, the dose of radiation used for CBCT examinations is carefully controlled to ensure the smallest dosage necessary. The dosage per scan is equivalent to approximately two (2) regular dental x-rays. The amount of radiation you will be exposed to will vary depending upon your age, weight and bone density. All radiation exposure is linked with a slightly higher risk of developing cancer.
Diagnosis of non-dental conditions
While parts of your anatomy beyond your mouth and jaw may be evident from the scan, your dentist may not be qualified to diagnose conditions that may be present in those areas, nor will your dentist be looking for any abnormal conditions other than those normally diagnosed by a dentist involving the area of interest. If any abnormalities, asymmetries, or common pathologic conditions are noted upon the CBCT scan, your dentist may send the scan to an Oral and Maxillofacial Radiologist and/or physician for further diagnosis.