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What is a CBCT image? A comprehensive guide to 3D tooth and jaw imaging

from Setare Sharq Authors Team / July 31, 1404

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Photograph CBCT is a high-precision three-dimensional imaging of the teeth, jaw and surrounding tissues. This technology, using cone X-ray, provides information that cannot be seen in two-dimensional methods such as OPG. Dental CBCT plays an important role in diagnosing, planning treatment, and monitoring diseases; Especially in cases such as implant implantation, wisdom tooth surgery, root canal treatment, orthodontics and examination of tumors or injuries of the jaw and face. In this guide, you will learn how the device works, clinical applications, benefits, side effects, necessary preparations and cost of CBCT scan.

How does CBCT work?

CBCT scan records multiple images of the target area using cone X-rays. The device rotates around the patient's head at a 360-degree angle and takes hundreds of 2D images within a few seconds. With the help of special software, these images are converted into a precise 3D image that provides a complete view of the teeth, jaw, sinuses and surrounding tissues.

Difference with medical CT Scan

In a CT scan, the rays are irradiated in the form of an open fan from several different angles and successive cross-sectional images are recorded; But in dental CBCT, the beam is irradiated in a conical shape and complete volume information is obtained with one complete rotation. CBCT photo:

The radiation dose is lower than CT.
The image clarity is higher in hard tissues such as bone.
The dimensions of the device are smaller and suitable for dental clinics.
The scanning time is much shorter.

CBCT

The CBCT process is carried out in the following steps:

The patient sits or stands on a special chair.
The patient's head is fixed with a pad and headgear so that it does not move.
The device rotates around the head in a few seconds and records the images.
The image data is converted into a 3D view by software.
Images will be ready for review by implant specialist or other dentists.

Comparison table of difference between CBCT image and OPG and CT Scan

In the table below you can see the difference between CBCT image and OPG and CT Scan

FeaturesCBCTOPGCT ScanType of 3D and 3D multi-layer tomography High imaging accuracy for hard tissue Limited Very high for soft tissue Radiation dose lower than CT, more than OPG Low Imaging time Less than 1 minute Several seconds Several minutes Suitable for teeth, jaws, implants, surgery Initial examination of teeth and jaws Imaging of The whole body level, medium, low, high

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Applications of CBCT Imaging in Dentistry and Maxillofacial Surgery

As a precision imaging tool, CBCT scanning is used in a wide range of dental treatments and maxillofacial surgery. This technology enables the analysis of complex structures and helps dentists and surgeons to make better treatment decisions.

Dental implant

In order to accurately design and implant implant, it is necessary to check the height, width and bone density. The CBCT image provides the specialist with complete information about the nerve path, sinus position and bone volume.

Hidden wisdom tooth surgery

In cases where the wisdom tooth is located close to the nerve canal or sinus, CBCT helps determine the exact position of the roots and reduces the risk of damage to vital structures. Side channels and calcified areas are very important. CBCT displays this information with high accuracy and reduces the probability of treatment failure.

Orthodontics

In orthodontics, analysis of the jaw condition, the relationship of the teeth, the hidden teeth and their movement path is essential. CBCT provides a comprehensive image for orthodontic treatment planning and is a vital tool for complex patients.

Diagnosis of Maxillofacial Diseases

CBCT is used to evaluate cysts, tumors, bone disorders, jaw bone resorption and other hidden lesions. This scan provides a clear view of the deep structures of the mouth.

Temporomandibular joint (TMJ) examination

In patients who are experiencing pain, noise or limited movement in the jaw joint, CBCT helps to check the bony state of the joint and structural analysis.

Trauma and fractures of the jaw and face

In injuries caused by accidents, CBCT is used to check fractures. Moving bone fragments and planning reconstruction surgery is very practical.

Advantages of using CBCT To 2D radiographs

Compared to methods such as OPG or periapical, dental CBCT has more advanced capabilities that make it a more accurate and practical choice for specialized treatments. In the following, you will learn about the advantages of CBCT.

Three-dimensional precision and detail

The CBCT image shows the structures of the teeth, jaw and nerve canals with high resolution and in three dimensions; Something that cannot be seen in OPG and 2D images.

Reduction of radiation dose

Compared to medical CT, the radiation dose in dental CBCT is lower and is considered safer for imaging the jaw area.

Short imaging time

The scanning process is done in less than a minute; Painless, without the need for special preparation and with minimal patient movement.

Advanced image analysis software

Images are checked with specialized software; The possibility of zooming, different cuts and accurate measurements are available.

Do CBCT images have complications? Yes?

CBCT scan is safe under normal circumstances; But like any x-ray imaging method, it has limitations that must be considered. Complications of CBCT include the following:

X-ray dose: although the radiation dose in CBCT is lower than medical CT; But still more than conventional radiographs (such as OPG). It is not recommended to do it repeatedly without necessity. Contraindications: during pregnancy, especially in the first trimester, the use of CBCT photo is done only when necessary and with special protection. It is also recommended for children only in special cases.
Limitations: CBCT images are highly accurate in showing bones; But details of soft tissue such as muscle or salivary glands are limited in it. Also, the presence of metal objects (such as orthodontic brackets) may disturb the image.

Preparation before CBCT and important points afterwards

Before doing a CBCT scan, knowing a few simple things can help to record the images more accurately and interpret them better.

Before the imaging

Avoid wearing tight clothing with buttons or metal.
Remove all metal objects such as glasses, jewelry, hairpins or dentures from the mouth and face.
If you are pregnant or may be pregnant, be sure to consult a doctor. Let us know.
Discuss your history of sensitivity to contrast agents or recent radiation imaging with your doctor.

During imaging

It is very important to remain still during the scan.
The head and jaw may need to be fixed with special tools.
The scan takes less than 1 minute and is painless.

After Imaging

No need for special care or rest; You can resume your daily activities immediately.
Digital images are usually available to the dentist on the same day.
If the doctor needs an immediate examination, he will ask you to wait until the preliminary results are ready.

Cost of CBCT image and factors Affecting it

The cost of CBCT scan is influenced by various factors and usually does not have a fixed rate; Understanding these factors helps patients make a better decision.

Influencing factors

Type of imaging and scan location: The cost varies depending on whether the scan is for implants, orthodontics, or surgery, and in which center the imaging is taken.
Number of jaws and required accuracy: Imaging both jaws or requesting a higher resolution increases the cost.
Type of device and center technology: Centers that use modern devices and advanced analysis software charge higher rates.
Physician experience and level of expertise in image analysis: Image interpretation by a maxillofacial specialist or radiologist may play a role in determining the final cost.

Insurance coverage

Some health insurance or installment dentistry plans, part of the cost of CBCT.
For accurate information, the type of insurance, the center of the contracting party and the diagnostic use of the image must be specified.
In cases such as planning for surgery, the insurance will probably reimburse a part of the tariff based on the rules of dental tariff.

Frequently asked questions (FAQ) about CBCT

Is CBCT painful? Does it have?

No. The CBCT image is completely painless and non-invasive.

How long is the CBCT image valid?

If the conditions of the jaw or teeth do not change, this scan can be used for several months for treatment planning; For implants, it is usually valid for up to 6 months.

How long does CBCT take?

Scan time is usually less than 30 seconds. The entire process, from preparation to image delivery, takes about 10 to 20 minutes.

Can CBCT be performed on children?

Yes; But only in necessary cases and with the doctor's discretion; Due to the greater sensitivity of children's bodies to radiation, it should be used with caution.

Is CBCT allowed for pregnant women?

It is not recommended during pregnancy, except in very special cases and with the use of lead shielding. Be sure to inform the doctor before imaging.

When does my dentist recommend CBCT?

In cases such as implants, wisdom tooth surgery, root canals, implanted teeth or detailed examination of jaw and facial damage.

What is the main difference between CBCT and panoramic radiography (OPG)?

CBCT imaging 3D with high accuracy and simultaneous display of bone and soft tissue; While OPG provides a two-dimensional image with less detail.

For whom is CBCT not recommended?

For pregnant people, young children or those who need frequent imaging, it is performed only in necessary situations.

Conclusion: The importance of CBCT in modern dentistry and improving the treatment process

CBCT scan with high accuracy and three-dimensional display, an important tool in diagnosis and Specialized treatments such as implants, orthodontics and jaw surgery. With high speed and less radiation, this method makes treatment decisions easier for the doctor and the patient.

For accurate imaging and professional interpretation, it is recommended to visit East Tehran Implant Center and benefit from the services under the dental tariff or installment dentistry. Do you also need accurate imaging to start treatment? Call now on 02191093560 and get expert advice.

Last updated on 31 July 1404 by Eastern Star Writers Team

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