Dental CBCT Scan

Cone Beam Computed Tomography: What is it?

CBCT is a diagnostic procedure that allows obtaining a three-dimensional image of any part of the maxillofacial area. The machine used by doctors for scanning with this method is called a computed tomograph. The examination is based on the use of X-rays. But unlike traditional X-rays:

the radiation load on the body is significantly lower;
the image is not two-dimensional but three-dimensional – this increases informativeness and helps doctors find answers to the questions that interest them;
the size and structure of the studied area are not distorted.

The scanning feature lies in the fact that, when the patient sits or lies down, a movable platform rotates around their head. A special tube emits a beam of rays in the shape of a cone. This creates several hundred projections. The device then processes the obtained data and builds a three-dimensional model based on them. The 3D image is stored in the computer's memory. At any moment, the doctor can display it on the screen for analysis. This diagnostic method is used in dentistry, maxillofacial surgery, and otorhinolaryngology. It allows not only the study of the dental system but also the nasal sinuses. This information can be useful when planning implantation in the upper jaw.

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Indications for CBCT

A dentist refers a patient for diagnosis using cone beam computed tomography if they suspect such problems as:

congenital anomalies of the dental system;
jaw injuries – cracks, fractures;
deep injuries to the roots of the teeth;
disorders of the structure or other damages to the temporomandibular joint.

The diagnostic method is suitable for detecting benign and malignant neoplasms. It is used in the planning of orthopedic, orthodontic, and endodontic treatment. It can be used to monitor the position of previously placed implants and assess the condition of root canals. The information obtained during the examination will help in deciding whether to remove complex impacted teeth.

An otolaryngologist orders CBCT scanning if:

the patient complains of nasal congestion, prolonged runny nose, headaches;
it is necessary to determine the degree of thickening of the mucous membrane;
it is necessary to find out if there is exudate (discharge) in the nasal cavities.

One of the advantages of cone beam computed tomography is the ability to differentiate sinusitis from a malignant tumor of the nasal sinus in its early stages of development.

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Advantages and Limitations

Undeniable advantages of CBCT are:

high informativeness, accuracy – it can detect neoplasms as small as 0.1 mm, identify inflammatory processes at early stages;
a wide range of applications – scanning is necessary in the treatment of various dental diseases, planning surgeries, and developing implantation tactics;
three-dimensional visualization of the studied area in digital format;
minimal radiation load – this means that harm to health is minimized, and the procedure can be repeated if more information is needed by the doctors;
the ability to obtain the necessary data for dentists within 60-90 seconds. Cone beam computed tomography also has its limitations.

In terms of universality, it is inferior to multislice CT. This diagnostic method is not suitable for pregnant women. In childhood, it is prescribed only if there is no alternative to such scanning.

How CBCT Scanning is Performed

No special preparation is needed. But just before the examination, you need to remove jewelry and other metal objects located in the face and neck area: hairpins, earrings, hearing aids. If possible, piercings and dental prostheses should also be removed. Next, the technician puts a protective apron on the patient to protect internal organs from radiation. After that, the patient needs to sit or stand near the tomograph. The doctor helps to take the correct position and fixes the head. Hands can be comfortably placed on the handrails. Then the doctor turns on the equipment. The rotating sensor takes pictures in the required projections. The duration of the scan depends on how much information the dentist needs. But usually, the procedure can be completed in 20-30 seconds. After the diagnosis, the patient's head is freed from the fixators, and they can leave the room. The results in digital format are given to the patient and the attending physician – in this case, they are recorded on a disk – or sent by email. You should not interpret the images yourself. This should be done by a specialist.

The AESTHETE dental clinic is located in Dubai (UAE), Bluewaters Island. We use modern diagnostic methods, including cone beam computed tomography, to make a diagnosis, plan surgery, or place implants. Contact us for treatment and prosthetics. Administrators are ready to answer questions. They will explain how to make an appointment for a consultation and help you choose a time to visit the doctor.

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