3D imaging at Magic Tooth Dental Center
See the full picture before your implant
A dental implant has to sit in solid bone, clear of nerves and sinuses. So before we place one, we take a 3D X-ray of your jaw, called a CBCT scan, on our Castellini X-Radius Trio. Your dentist can then measure your bone and choose the implant’s size and position on screen first.
- Painless
- Over in under a minute
- Done here in our clinic
What your dentist sees
A flat picture shows how tall the bone is, but not how thick.
- Bone height. Can be seen.
- Nerve canal. Seen from the side only.
- Bone thickness. Hidden, so this view alone cannot show whether an implant will fit.
A 3D scan can be sliced, so the bone’s thickness and the nerve’s position come into view.
- Bone width. Measured here as 6.8 mm.
- Bone height. Measured here as 14.5 mm above the nerve.
- Nerve canal. Carries the nerve to your lip and chin.
- Implant and new tooth. Sized and angled to stay clear of the nerve.
Select a letter to highlight it in the picture.
What is a CBCT scan?
CBCT stands for cone beam computed tomography. The scanner’s arm moves around your head while sending a cone-shaped X-ray beam through your jaw. A computer then turns what it captures into a three-dimensional picture of your teeth, your jawbone, the bony canals that carry your nerves, and your sinuses.1
The scan is quick and painless, and it is done here in the clinic. Dentists use it to plan implants and for other situations where a flat X-ray cannot answer the question.1
An ordinary X-ray is like a flat map
You can see where the streets are, but not how tall the buildings stand. Everything is flattened into one picture.
A CBCT scan is like a globe you can turn
Your dentist can rotate it, zoom in, and look through your jaw one thin slice at a time, from any direction.
Why 3D matters for your implant
An implant is a small titanium post that replaces the root of a missing tooth. Where it goes, how long it is and the angle it sits at all depend on what lies beneath your gum.
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It measures your bone
An implant needs enough bone all the way around it. The scan shows the bone’s height, width and shape, so your dentist knows before surgery whether an implant will fit.23
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It shows where the nerve runs
In the lower jaw, the nerve that gives feeling to your lip and chin runs through a canal in the bone. Seeing that canal in 3D lets your dentist plan an implant that stays clear of it.23
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It shows how close the sinus is
Above your upper back teeth are air-filled spaces called sinuses. The scan shows how much bone lies beneath them.3
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It lets your dentist rehearse on screen
Your dentist can place a virtual implant on the scan and try different sizes, depths and angles, to suit both your bone and the new tooth that will sit on top.34
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It shows if extra bone is needed
If the bone is thin or shallow, the scan helps your dentist decide whether a bone graft or a sinus lift is needed before the implant, or alongside it.2
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It means fewer surprises on the day
Some things are easy to miss on a flat picture, such as an extra nerve opening or a narrow ridge of bone. It is far better to find them while planning than during surgery.3
Our scanner: the Castellini X-Radius Trio
Castellini is an Italian maker of dental equipment, founded in 1935. Our X-Radius Trio takes ordinary panoramic X-rays and 3D CBCT scans on one machine. Here is what its features mean for you.6
It scans only the area that is needed
Choose a scan size to see what it covers.
One implant. The scan can be kept to the teeth and bone around the implant site.
Several implants in one jaw. The scan covers that whole jaw.
A plan for the whole mouth. One scan can take in both jaws.
The blue box is the area scanned and the red outline marks the implant site. A smaller area means less of you is exposed to X-rays.12
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Exposure matched to the job
The X-ray beam is pulsed and there are different scan modes, so your dentist can choose the setting that gives enough detail for your case and no more.
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A quick check before the scan
A head support and guide lights help line you up, and a preview image confirms the scan is aimed at the right area. That helps avoid a repeat.
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Fine detail
The 3D picture is built from tiny cubes, like the pixels in a photo. On this scanner they can be as small as 0.075 mm, less than a tenth of a millimetre.
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Open and quick
You stand in an open scanner, not inside a tunnel, and the scan itself usually takes less than a minute.7
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Planning software
The scan opens in Castellini’s iRYS software. Your dentist can place a virtual implant, see how far it sits from the nerve canal and set a safety distance. Scans are stored in DICOM, the standard format for medical images.4
How CBCT compares
No single scan is best for everything. Each one answers a different question. Choose one to compare it with CBCT.
What CBCT adds
What CBCT offers
What our X-Radius Trio offers
Worth knowing
A scan supports good planning. It does not replace your examination, the treatment itself or the care you give your implant afterwards.9
Radiation and safety
A CBCT scan uses X-rays, so it is fair to ask about radiation. Here is the plain picture.
Where CBCT sits
- Ordinary dental X-raylowest dose
- Dental CBCTin between
- Hospital CTgenerally highest
Roughly two weeks to a month of everyday background radiation
A review of measurements from many different CBCT machines found average adult doses of about 84 microsieverts for small scans and about 212 for large ones.8 Everyone receives around 2,400 microsieverts a year from natural sources such as the ground, the air and space.10 These are averages across machines, not a measurement of our scanner, and doses vary widely with the machine and the settings used.
Settings matched to you
The highest-detail mode is not always needed. Settings are chosen for your size and for the question your dentist is asking.1
Tell us if you are pregnant, or might be
Please let us know before any X-ray so your dentist can talk through the options with you.7
What happens on the day
The scan needs no special preparation.7
Take off anything metal
We will ask you to remove glasses, earrings, necklaces, hairpins and hearing aids, and tell you whether to take out dentures or other removable dental work.7
Get into position
You stand in the scanner. A head support keeps you steady and guide lights help us line you up.6
Keep still for the scan
The arm moves around your head. Keep still and breathe normally. You will not feel anything.7
Carry on with your day
There is no recovery time. Your dentist studies the 3D images, plans your implant and goes through the plan with you.7
Questions patients ask
Will I need a CBCT scan for an implant?
For planning implant surgery, 3D imaging is what professional guidance recommends.25 Your dentist examines your mouth first and looks at your earlier X-rays, then explains why a scan is right for your case.
If you have had a CBCT scan somewhere else recently, tell us or bring it with you. It may mean you do not need another one.111
Why can’t you just use an ordinary X-ray?
An ordinary X-ray flattens your jaw into a single picture. It cannot show how thick the bone is, or whether a nerve sits nearer the cheek side or the tongue side. An implant is a 3D object going into 3D bone, which is why guidance recommends 3D imaging for planning it.2
We still use ordinary X-rays for check-ups and first assessments, because their dose is lower.1
Does the scan hurt? Are there any side effects?
It does not hurt. There are no injections, and nothing touches you except the supports that steady your head. X-rays do not stay in your body, there are no immediate side effects, and you can go straight back to your day.7
Like any X-ray, the scan involves a small dose of radiation. See Radiation and safety.
How long does it take?
The scan itself usually takes less than a minute: a few seconds for a small area, and up to about 40 seconds for a full-mouth scan.7 Allow a few minutes in total for removing jewellery and getting into position.
Is it safe? How much radiation will I receive?
A CBCT scan is not radiation-free. It gives more radiation than an ordinary dental X-ray and generally less than a hospital CT.1 Across many CBCT machines, average doses work out at roughly two weeks to a month of the natural background radiation everyone receives.810
When a scan is needed for your treatment, its benefit outweighs that small risk.1 The exact amount depends on the size of the scan and the setting used, which is why we choose the smallest and lowest that will do the job.
Is it the same as a hospital CT scan?
What should I tell you before the scan?
I have fillings, crowns or other implants. Will they spoil the image?
Metal can cause bright streaks on a CBCT image. Your dentist allows for this when reading the scan, and imaging software can reduce the streaks.3
Can the scan be used for guided implant surgery?
In suitable cases, yes. The 3D scan can be combined with a digital scan of your teeth, and the plan turned into a custom-made guide that rests on your teeth or gums and steers the drill to the planned position.3
Studies find that implants placed with a guide end up, on average, a little over one millimetre from the plan. That is why dentists still keep a safety margin of at least 2 mm around nerves.12 A guide is not needed for every case. Ask your dentist whether it would help in yours.
Does a 3D scan guarantee my implant will succeed?
No scan can promise that. Success also depends on your general health, whether you smoke, how you heal, and how well you clean and look after the implant.9 What the scan does is take a great deal of guesswork out of the planning.
Will I need more CBCT scans after treatment?
Only if there is a clinical reason, such as an implant that feels loose or a change in the feeling in your lip or chin. For routine checks on an implant that is causing no trouble, ordinary dental X-rays are usually enough.2
Can I have a copy of my scan?
Scans are stored in DICOM, the standard format for medical images, so other dentists and specialists can open them.4 Ask our team if you need a copy.
No questions match that search. Try a different word, or ask our team.
References
U.S. Food and Drug Administration. Dental Cone-beam Computed Tomography. Content current as of 28 September 2020.
fda.gov: Dental Cone-beam Computed TomographyTyndall DA, Price JB, Tetradis S, Ganz SD, Hildebolt C, Scarfe WC. Position statement of the American Academy of Oral and Maxillofacial Radiology on selection criteria for the use of radiology in dental implantology with emphasis on cone beam computed tomography.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2012;113(6):817–826. Full text from the Academy (PDF). doi:10.1016/j.oooo.2012.03.005Jacobs R, Salmon B, Codari M, Hassan B, Bornstein MM. Cone beam computed tomography in implant dentistry: recommendations for clinical use.
BMC Oral Health. 2018;18:88. Open access. doi:10.1186/s12903-018-0523-5Castellini (Cefla s.c.). iRYS imaging and planning software.
castellini.com/en/software/irysAmerican Dental Association. New ADA recommendations confirm dental imaging most effectively used in moderation.
ADA News, 5 January 2026. adanews.ada.org. The recommendations, endorsed by the American Academy of Oral and Maxillofacial Radiology, are published in The Journal of the American Dental Association, January 2026: journal abstractCastellini (Cefla s.c.).
X-Radius Trio, manufacturer’s brochure, 2014, hosted by a distributor: X-Radius Trio brochure (PDF). Castellini’s current imaging range: castellini.com/en/extraoral-devicesRadiologyInfo.org, from the Radiological Society of North America and the American College of Radiology. Dental Cone Beam CT, patient information.
radiologyinfo.org: Dental Cone Beam CTLudlow JB, et al. Effective dose of dental CBCT: a meta analysis of published data and additional data for nine CBCT units.
Dentomaxillofac Radiol. 2015;44(1):20140197. doi:10.1259/dmfr.20140197 (PubMed summary)U.S. Food and Drug Administration. Dental Implants: What You Should Know. Content current as of 29 October 2021.
fda.gov: Dental ImplantsUnited Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). UNSCEAR 2000 Report to the General Assembly, press release, 6 June 2000. Worldwide average dose from natural radiation: 2.4 millisieverts a year.
press.un.orgAmerican Dental Association. X-Rays/Radiographs. Oral Health Topics. Updated 26 March 2026.
ada.org: X-Rays/RadiographsTahmaseb A, Wu V, Wismeijer D, Coucke W, Evans C. The accuracy of static computer-aided implant surgery: a systematic review and meta-analysis.
Clin Oral Implants Res. 2018;29(Suppl 16):416–435. doi:10.1111/clr.13346
This page gives general information and is not a substitute for advice from your own dentist, who will recommend what is right for you. Sources checked October 2026.














