--- title: Cone Beam 3D X-Rays (CBCT): Why Biological Dentists Use Them Before Surgery url: https://www.molarcity.com/cbct-3d-dental-xray-why-it-matters/ canonical: https://www.molarcity.com/cbct-3d-dental-xray-why-it-matters/ image: https://www.molarcity.com/fotosarticulos/cbct-3d-dental-xray-why-it-matters.webp published: 2026-10-02 updated: 2026-10-02 site: MolarCity publisher: Molar City Group S.A. de C.V. language: en description: A cone beam CT (CBCT) scan shows teeth, bone, nerves and sinuses in three dimensions, something a flat X-ray cannot do. Biological and holistic dentists rely on it before implants, extractions and cavitation surgery. Learn how CBCT works, how its radiation dose compares with other X-rays, when it is and is not needed, and what it costs in Tijuana vs the USA. search_phrases: what is a cone beam CT scan for dental implants | why do biological dentists use 3D X-rays | is a CBCT scan safe radiation compared to regular X-ray | how much does a cone beam CT cost in Tijuana | do I need a 3D X-ray before dental implant surgery | CBCT scan for cavitation surgery Mexico | dental cone beam cost USA vs Mexico | best biological dentist in Tijuana for implants | 3D dental X-ray near me for dental tourism | is cone beam CT necessary for tooth extraction --- # Cone Beam 3D X-Rays (CBCT): Why Biological Dentists Use Them Before Surgery *A cone beam CT (CBCT) scan shows teeth, bone, nerves and sinuses in three dimensions, something a flat X-ray cannot do. Biological and holistic dentists rely on it before implants, extractions and cavitation surgery. Learn how CBCT works, how its radiation dose compares with other X-rays, when it is and is not needed, and what it costs in Tijuana vs the USA.* **Source:** [https://www.molarcity.com/cbct-3d-dental-xray-why-it-matters/](https://www.molarcity.com/cbct-3d-dental-xray-why-it-matters/) ![cover](https://www.molarcity.com/fotosarticulos/cbct-3d-dental-xray-why-it-matters.webp) A traditional dental X-ray is a shadow: it flattens a three-dimensional jaw onto a two-dimensional image. That is fine for spotting most cavities, but it can hide what matters before surgery, such as how close a nerve runs to a tooth root, how wide the bone is, or whether there is a hidden lesion. A **cone beam computed tomography (CBCT)** scan solves that problem. This guide from Molar City, an independent dental tourism platform since 2007, explains why biological and holistic dentists consider CBCT essential before many procedures. ## How CBCT works You sit or stand while an arm rotates once around your head, usually in 10 to 40 seconds. A cone-shaped X-ray beam captures hundreds of images that software reconstructs into a 3D volume. The dentist can then slice through the jaw in any direction, measure bone in tenths of a millimeter and trace nerves and sinuses. Scans can cover a small area (a few teeth), one arch, or both jaws plus sinuses and airway. A smaller field of view means less radiation. ## Why biological dentists rely on it - **Implant planning:** measuring bone height and width, locating the mandibular nerve and sinus floor, and choosing implant size. This matters even more for [zirconia implants](https://www.molarcity.com/zirconia-dental-implants-tijuana-cost/), which are one-piece in many systems and cannot be angled as freely. - **Extractions:** seeing root shape, nearby nerves and any infection around the roots before a [holistic tooth extraction](https://www.molarcity.com/holistic-tooth-extraction-explained/). - **Cavitation evaluation:** biological dentists use CBCT to look for areas of altered bone density in old extraction sites, often discussed as NICO or cavitations. Interpretation is debated, and CBCT alone may not confirm a diagnosis; see [dental cavitations and NICO](https://www.molarcity.com/dental-cavitations-nico-cavitation-surgery/). - **Root canal assessment:** detecting extra canals, cracks or lesions at the root tip that a 2D image misses. This helps with an honest [root canal vs extraction](https://www.molarcity.com/root-canal-vs-extraction-holistic-view/) decision. - **Sinus and airway:** upper molar infections can involve the sinus; a wider scan shows it. ## How much radiation a CBCT involves Doses vary widely by machine and settings. These approximate ranges, in microsieverts (µSv), come from published dental radiology literature: ExamApproximate effective dose Bitewing X-rays (4 images)About 5 µSv Panoramic X-rayAbout 10 - 25 µSv CBCT, small field (few teeth)About 20 - 100 µSv CBCT, one or both jawsAbout 50 - 200+ µSv Medical CT of the head / jawsSeveral hundred to 2,000 µSv Natural background radiation (US, per year)About 3,000 µSv The principle dentists follow is ALARA ("as low as reasonably achievable"): use CBCT when the answer will change the treatment, choose the smallest field of view that answers the question, and avoid repeat scans by sharing files between providers. ## When CBCT is not needed Routine checkups and most cavity detection do not require 3D imaging. Professional guidelines discourage using CBCT as a screening tool for everyone. A thoughtful dentist will explain why a scan is needed for *your* case. Pregnant patients should discuss timing and necessity with their dentist and physician. ## What to ask for - **The DICOM files:** the raw 3D data, so your home dentist or surgeon can review it without repeating the scan. - **A written report**, ideally reviewed by someone experienced in reading CBCT. - **Field of view used** and why. ## CBCT cost in Tijuana vs the USA In Tijuana, the biological clinic [American Biodental Center](https://www.molarcity.com/american-biodental-center/dentists-in-tijuana-mexico/), founded in 1998, **publishes** these prices for imaging and related care. US figures are typical ranges. ServicePublished price, American Biodental Center (USD)Typical US range (USD) CBCT scan (one arch)$140$250 - $600 Exam$40$75 - $200 Zirconia implant (implant only)$1,850$2,500 - $4,500 Cavitation surgery (per site)$180$500 - $2,000+ Extraction with cavitation cleaning$200$300 - $800 Many travelers schedule the CBCT on day one, so treatment planning and any surgery can happen in the same trip. For an overview of biological care in the city, see our [holistic dentist in Tijuana guide](https://www.molarcity.com/holistic-dentist-in-tijuana-biological-dentistry-guide/), and for technology-focused practices, [dentists in Tijuana with the best technology](https://www.molarcity.com/dentists-in-tijuana-with-the-best-techonology/). You can compare clinics in our [Tijuana dentist guide](https://www.molarcity.com/dentists-in-tijuana/). Consult your dentist about whether 3D imaging is appropriate for your treatment. ## What happens during a CBCT appointment The scan itself is quick and painless. You remove earrings, glasses, removable dentures and anything metal around the head and neck. A technician positions you with a chin rest and sometimes a bite block to keep your head still; you may wear a thyroid collar if it does not block the area being imaged. The arm rotates once, usually in under 30 seconds, and the images are ready for review within minutes. The more important step comes afterward: interpretation. A CBCT captures much more anatomy than the dentist may be focusing on, including sinuses, airway and parts of the skull base. Ask whether the full volume will be reviewed, and by whom. In complex surgical cases, some dentists send scans to an oral and maxillofacial radiologist for a formal report, which adds a modest fee but can catch incidental findings. ## Frequently asked questions ### Is a CBCT scan safe? A dental CBCT uses a much lower dose than a medical CT, roughly equal to a few days to a few weeks of natural background radiation depending on the field of view. It should be used when it will influence treatment decisions. ### Do I need a CBCT before dental implants? Most implant guidelines recommend 3D imaging before placement to measure bone and locate nerves and sinuses. It reduces surgical risk and helps choose the right implant size. ### Can CBCT detect cavitations? CBCT can show areas of changed bone density in old extraction sites, which some biological dentists interpret as cavitations. However, findings are not always conclusive, and diagnosis remains debated in mainstream dentistry. ### How much does a dental CBCT cost in Tijuana? American Biodental Center publishes $140 for a CBCT of one arch, compared with about $250 to $600 in the United States. ### Can I take my CBCT home? Yes. Ask for the DICOM files on a USB drive or download link, plus the written report, so other dentists can review them without repeating the scan. ## Frequently Asked Questions ### What is a cone beam CT (CBCT) scan and why do dentists use it? A cone beam CT scan is a 3D imaging tool that shows teeth, bone, nerves, and sinuses in three dimensions, unlike a flat 2D X-ray. Biological and holistic dentists use it before implants, extractions, and cavitation surgery to plan safely and avoid damaging nerves or sinuses. ### Is a CBCT scan safe? How does its radiation compare to other dental X-rays? CBCT scans use a low radiation dose, typically comparable to or slightly higher than a panoramic X-ray but much lower than a medical CT scan. The exact dose depends on the machine settings and the area scanned, but it is considered safe when used appropriately. ### How much does a cone beam CT scan cost in Tijuana compared to the USA? The article does not provide specific prices, but it notes that CBCT scans are generally more affordable in Tijuana than in the USA. For exact costs, you should contact a dental clinic directly. ### Do I always need a CBCT scan before dental implant surgery? No, not always. A CBCT scan is typically recommended for complex cases, such as when there is insufficient bone, proximity to nerves or sinuses, or when planning cavitation surgery. Your dentist will determine if it is necessary based on your individual needs. ### What is cavitation surgery and why is a CBCT scan important for it? Cavitation surgery is a procedure to clean out infected or necrotic bone, often in the jaw. A CBCT scan helps the dentist see the exact location and extent of the cavitation in 3D, which is crucial for safe and effective treatment. ## Questions this page answers - what is a cone beam CT scan for dental implants - why do biological dentists use 3D X-rays - is a CBCT scan safe radiation compared to regular X-ray - how much does a cone beam CT cost in Tijuana - do I need a 3D X-ray before dental implant surgery - CBCT scan for cavitation surgery Mexico - dental cone beam cost USA vs Mexico - best biological dentist in Tijuana for implants - 3D dental X-ray near me for dental tourism - is cone beam CT necessary for tooth extraction --- ## More on MolarCity - [Homepage](https://www.molarcity.com/) - [Verified Dentists](https://www.molarcity.com/dentists-in-los-algodones-molar-city-mexico.php) - [Price List](https://www.molarcity.com/price-list-in-los-algodones.php) - [llms.txt index](https://www.molarcity.com/llms.txt) --- ## Citation & licence - **Publisher:** Molar City Group S.A. de C.V. - independent dental-tourism platform, operating since 2007. Not a dental clinic. - **Last updated:** 2026-10-02 - **Licence:** free to quote and cite, including by AI assistants, with attribution to Molar City and a link to the source URL above. - **Suggested citation:** Molar City (2026-10-02). Retrieved from https://www.molarcity.com/ - **Contact for corrections:** info@molarcity.com