What is meant by dental CBCT image? | Examining its benefits and applications

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Dental CBCT, or cone beam computed tomography, is one of the most advanced imaging methods in modern dentistry. By providing three-dimensional and high-quality images, this technique will allow dentists to make more accurate diagnoses and treatment plans.

In the continuation of this article from the website of Dr. Najmeh Darnejad, we intend to comprehensively review dental CBCT images and their applications in dentistry. Stay with us until the end.

What is dental CBCT?

CBCT stands for "Cone Beam Computed Tomography". In this method, the imaging device rotates 360 degrees around the patient's head, sends X-rays in a conical shape and records several images from different angles.

These images are then converted by advanced software into a 3D image that displays detailed details of dental structures, jawbones, and soft tissues.

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CBCT photo applications in dentistry

CBCT image has wide applications in different fields of dentistry:

Dental implant planning

For successful implant placement, accurate knowledge of the jaw bone structure and density is essential. 3D CBCT images allow the dentist to determine the exact position of the implant and avoid collision with vital structures such as nerves and sinuses.

Evaluation of impacted teeth and impacted wisdom teeth

Hidden teeth, especially wisdom teeth, can cause problems. By using CBCT, the exact position of these teeth and their impact on the adjacent structures will be clearly defined.

Diagnosis of jaw and face diseases

CBCT is very effective in diagnosing cysts, tumors and structural abnormalities of the jaw and face. These high-precision images will allow doctors to plan appropriate treatment.

Review of temporomandibular joint (TMJ) problems

Temporomandibular joint disorders can lead to pain and discomfort. CBCT images will help the dentist to carefully examine the structure of the joint and suggest appropriate treatment.

Evaluation of root canals in endodontics treatments

In root canal treatment, accurate knowledge of the structure and curvature of the root canals is very important. 3D CBCT images provide this information in full detail.

Advantages of using CBCT in dentistry

The use of CBCT in dentistry has several advantages, the most important of which will be mentioned below:

High accuracy: high resolution 3D images improve diagnosis and treatment planning.
Reduction of errors: with more accurate information, the probability of errors in diagnosis and treatment decreases.
Short imaging time: CBCT scanning process is done in a short period of time and is comfortable for the patient.
Displaying more details: Unlike 2D images, CBCT allows viewing structural details at all angles.

Difference between CBCT and panoramic radiography (OPG)

Panoramic radiography (OPG) provides two-dimensional images of the entire jaw and teeth; While CBCT provides more detailed 3D images. OPG Photo is suitable for general examinations; But in cases where there is a need for higher accuracy and details, CBCT is preferred.

Cost and access to CBCT services in Iran

The cost of performing CBCT in Iran varies depending on the imaging center and the equipment used. Normally, the cost of this imaging in 1403 is estimated to be around 1,100,000 Tomans for each half-jaw. With the advancement of technology, more dental centers in Iran are equipped with CBCT devices; But it is still recommended to make sure of the existence of these facilities in the desired center before visiting.

CBCT safety tips and considerations

Although CBCT has high accuracy, like other imaging methods with radiation X, safety considerations must be observed. The radiation dose in CBCT is higher than conventional radiographs; Therefore, its use should be done only in necessary cases and with the prescription of a dentist. Also, the use of lead protectors will be recommended to reduce radiation to sensitive tissues.

Dangers and side effects of CBCT

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As we have learned so far, CBCT (Cone Beam Computed Tomography) is an advanced imaging method that is widely used in dentistry, jaw and face and some medical fields. This method helps in better diagnosis and treatment planning by providing accurate 3D images. But like any other imaging method, CBCT is not safe and may have complications or risks that patients and doctors must be aware of.

X-ray exposure

The most important concern about CBCT is the amount of X-ray radiation to the body. Although the radiation dose in CBCT is lower than in conventional CT scans, it is still higher than in simple dental imaging (such as panoramic or bitewing). Repeated exposure to this radiation can slightly increase the possibility of damaging cells or even increasing the risk of cancer in the long term; Especially in children or people who have a weak immune system.

Restriction on use for some people

Pregnant people should avoid CBCT as much as possible, except in absolutely necessary situations and with the doctor's opinion. Although protection is done with a lead shield, any unnecessary exposure to radiation is considered dangerous for the fetus.

The role of operator experience in imaging accuracy and health

If the device operator does not have enough experience or the device setting parameters are not selected correctly, the image may be recorded with low quality and need to be repeated; that this repetition will increase the reception of radiation.

Possibility of incorrect results or misinterpretation

In some cases, insignificant abnormalities may be seen in the images, leading to patient concern or unnecessary further investigations. Also, if the images are interpreted by non-specialists, there is a possibility of misdiagnosis.

Summary

As one of the important innovations in dentistry, dental CBCT image plays a significant role in improving dental diagnosis and treatment by providing three-dimensional and accurate images. This technique allows dentists to have more effective treatment plans with advantages such as high accuracy, error reduction and displaying more details. However, due to the higher dose of radiation, its use should be done carefully and only in necessary cases.

Frequently asked questions about dental CBCT images

1- What is CBCT and how is it different from regular dental radiography?

CBCT is an x-ray imaging in the form of a cone beam, which allows the production of three-dimensional images of the teeth, jaw, soft tissue and nerve pathways.

2- In what cases is CBCT recommended?

It is used for planning implants, identifying tooth roots, examining the jaw and sinuses, difficult or complex orthodontics, and when conventional radiography is not enough.

3- Does CBCT imaging have a greater radiation risk than dental radiography?

Yes, it has more radiation than a regular dental x-ray, but less than a medical CT scan and should only be done when necessary.

4- Is there a special preparation needed to perform CBCT?

No special preparation is usually required, but you should remove metal objects such as jewelry or braces to get a better image.

5- Is CBCT suitable for all patients?

No, for example, in pregnancy or when a simple x-ray is sufficient, caution should be exercised or less irradiated options should be considered.

6- What are the advantages of CBCT imaging compared to two-dimensional photographs?

Three-dimensional view of tooth and jaw structures allows for more detailed examination of roots, sinuses and nerve pathways and better treatment planning.

About the author:

In 1379, I was accepted in the national entrance exam of universities with a distinguished rank (5th rank) in the experimental field and started studying at Mashhad Dental School. During my academic period, I was one of the distinguished students of this faculty and I received many academic awards. And finally, in 2018, by defending my thesis on "The effect of bone growth factor on jaw problems", I managed to obtain a doctorate degree in dentistry and became a member of the country's medical system organization and the World Association of Orthodontic Specialists.