A CBCT scan (cone beam computed tomography) is a 3D X-ray of your jaw and teeth. Unlike a flat panoramic X-ray (OPG), it lets your dentist see bone thickness, nerve positions, and tooth roots in three dimensions. That’s why it’s often recommended before dental implants, wisdom tooth removal, or complex root canal treatment. The scan itself is quick — about 10 to 30 seconds — and requires no special preparation. You simply sit or stand still while the machine rotates around your head.
What is a CBCT scan and how is it different from OPG and medical CT?
A CBCT scan uses a cone-shaped X-ray beam that rotates once around your head, capturing a cylindrical block of data. This creates a true 3D image that can be rotated and sliced to see bone density, nerve canals, and tooth roots from any angle. In contrast, an OPG (orthopantomogram) is a flat 2D panoramic X-ray that shows the whole jaw in one view but lacks depth. A medical CT (computed tomography) also produces 3D images but uses a much higher radiation dose and is rarely needed for routine dental work.
| Feature | OPG (panoramic X-ray) | CBCT (3D) | Medical CT |
|---|---|---|---|
| Image type | 2D flat image | 3D volume | 3D volume |
| Radiation dose | Low | Moderate (higher than OPG, lower than CT) | High |
| Best for | General overview of teeth and jaws | Surgical planning, implants, root canals | Head and neck pathology, trauma |
| Cost in Bangladesh | Lower (typically ৳500–1,500) | Moderate (typically ৳3,000–10,000) | Higher (typically ৳5,000–15,000+) |
| Availability | Widely available | Growing in major cities | Only in large hospitals |
When does a dentist actually recommend a CBCT?
Your dentist will only recommend a CBCT when a standard X-ray cannot give enough information. Common reasons include:
- Dental implant planning – to measure bone height, width, and density, and to locate the inferior alveolar nerve.
- Impacted wisdom teeth – to see the tooth’s position relative to the nerve and sinus.
- Complex root canal treatment – to detect extra canals or curved roots.
- Temporomandibular joint (TMJ) disorders – to assess joint erosion or displacement.
- Facial trauma or cysts – to evaluate the extent of injury or pathology.
CBCT is not used for routine cavities or simple gum disease – those are usually visible on regular bitewing or periapical X-rays. If your dentist suggests a CBCT, ask why it’s needed and how it will change your treatment.
Is CBCT safe? How much radiation is involved?
Every X-ray carries a small amount of radiation, and CBCT is no exception. The dose from a CBCT is higher than a single OPG or a few bitewing X-rays, but it is significantly lower than a medical CT of the same area. For most adults, the risk is very small, especially when the scan is clinically justified.
However, CBCT is generally avoided during pregnancy unless there is a strong clinical need, and the abdominal area can be shielded. For children, it should only be used when absolutely necessary – for example, to plan orthodontic treatment for impacted teeth. The dentist will always weigh the benefit against the risk.
What happens during the scan and how should you prepare?
The procedure is simple and painless. Here’s what to expect:
- Remove any metal objects – glasses, earrings, necklaces, hairpins, and dentures.
- You’ll either sit or stand in the scanner, depending on the machine.
- You may be asked to bite on a small plastic stick to keep your jaws apart.
- The machine rotates around your head for about 10–30 seconds. You must stay perfectly still.
- The scan is done – you can go back to your normal activities immediately.
There is no recovery time, and you won’t feel anything. The images are sent to your dentist, who will explain the results and the next steps.
How much does a CBCT cost in Bangladesh?
CBCT prices in Bangladesh vary widely depending on the city, the centre’s equipment, and whether one or both jaws are scanned. The figures below are approximate ranges – always confirm the exact cost before booking.
| Item | Approx. BDT range | Notes |
|---|---|---|
| Single jaw (one arch) | ৳3,000 – ৳6,000 | Usually enough for implant planning or a single tooth issue. |
| Both jaws (full mouth) | ৳5,000 – ৳10,000 | Needed for multiple implants, orthognathic surgery, or TMJ assessment. |
| Additional 3D model or CD | ৳500 – ৳1,500 | Some centres charge extra for a printed model or digital copy. |
Prices tend to be higher in Dhaka and other large cities, and lower in smaller towns. Centres with newer machines and specialist radiologists may charge more. Always ask for a written quote and confirm whether the fee includes the radiologist’s report.
How to choose a reliable CBCT centre in Bangladesh
Choosing the right centre matters for both accuracy and safety. Follow these tips:
- Get a referral – your dentist or maxillofacial surgeon should recommend a centre they trust.
- Check certification – the machine should be approved by the Bangladesh Atomic Energy Regulatory Authority (BAERA) and regularly maintained.
- Ask about the radiologist – a trained radiologist should interpret the scan, not just a technician.
- Compare written quotes – call or visit a few centres and ask for the total cost, including the report.
- Avoid self-referral – never get a CBCT without a dentist’s recommendation; it’s not a routine screening tool.
Find dentists and dental clinics by division in Bangladesh
If you need a dentist who can decide whether a CBCT is necessary, or a clinic that offers the scan, use the directory below to find options in your division.
| Division | Find listings |
|---|---|
| Dhaka | Find dental clinics in Dhaka |
| Chattogram | Find dental clinics in Chattogram |
| Khulna | Find dental clinics in Khulna |
| Rajshahi | Find dental clinics in Rajshahi |
| Rangpur | Find dental clinics in Rangpur |
| Sylhet | Find dental clinics in Sylhet |
| Barishal | Find dental clinics in Barishal |
| Mymensingh | Find dental clinics in Mymensingh |
Frequently Asked Questions
Is a CBCT scan painful or uncomfortable?
No, a CBCT scan is completely painless. You simply sit or stand still while the machine rotates around your head for 10–30 seconds. You may hear a slight humming or buzzing sound, but there is no physical contact or discomfort. If you have trouble staying still or feel anxious, tell your dentist beforehand—they can guide you through the process.
Can I have a CBCT scan if I’m pregnant or trying to conceive?
CBCT uses a low dose of ionizing radiation, so it is generally avoided during pregnancy unless absolutely necessary. If you are pregnant, suspect you might be, or are actively trying to conceive, always inform your dentist and gynecologist before the scan. They will weigh the benefits against any potential risk and may suggest postponing the scan or using alternative imaging if possible.
How long does it take to get CBCT results and how are they used?
The scan itself takes under a minute, and the 3D images are usually available within a few minutes. However, your dentist or radiologist needs time to interpret the images thoroughly—this can take anywhere from 30 minutes to a few hours. The results help your dentist plan precise treatments like dental implants, root canals, or wisdom tooth extractions by showing exact bone structure, nerve pathways, and tooth orientation.
Sources
The following sources are from international journals, government health agencies, or recognized medical organizations:
- Dental x-rays: MedlinePlus Medical Encyclopedia (medlineplus.gov)
- World Health Organization — CBCT Scan (Cone Beam CT of Jaw/Teeth) (who.int)
- MedlinePlus — CBCT Scan (Cone Beam CT of Jaw/Teeth) (medlineplus.gov)
- CDC — CBCT Scan (Cone Beam CT of Jaw/Teeth) (cdc.gov)
- NHS — CBCT Scan (Cone Beam CT of Jaw/Teeth) (nhs.uk)
- PubMed — CBCT Scan (Cone Beam CT of Jaw/Teeth) (pubmed.ncbi.nlm.nih.gov)
