CBCT Dental Scan: What It Shows Your Dentist

If your dentist recommended a CBCT scan and you are wondering what it actually shows, here is the short answer: a CBCT scan gives me a complete 3D map of your jaw, teeth roots, sinuses, nerves, and bone. I can see things on a CBCT that no flat x-ray can show me, and that changes how I plan your care. I am Dr. Nick Ciardiello, and I run Limitless Dental® here in Jersey City. We use CBCT every week for implant planning, root canal diagnosis, wisdom tooth removal, and anything where I need to see the full picture before I touch a tooth. When I order this scan for you, I want you to understand what I am looking at and why it matters for your specific case.

What is a CBCT dental scan?

A CBCT scan, short for cone beam computed tomography, is a 3D x-ray that takes a single rotation around your head and stitches together a full three-dimensional image of your teeth, jaw, sinuses, and the nerves that run through your face. Sit upright in our scanner, hold still for about 20 seconds, and that is it. You do not lie down. You do not get dye. You do not feel anything. This is different from the small bitewing x-rays you get at your cleanings. Those show me four or five teeth from one angle. CBCT shows me everything from every angle. I can rotate the image, slice through your jaw at any depth, and measure exact distances in millimeters.

What does a CBCT scan show your dentist?

Here is the part that matters most to you. When I open your CBCT on my screen, this is what I am actually looking at:

• The full shape and position of every tooth root. Not just what is above the gum, but what is happening below.
• Bone height and bone width in any area where you might need an implant, a graft, or wisdom tooth removal.
• The exact path of the nerve that runs through your lower jaw. This is critical when I plan implants or extractions in the back of your mouth.
• Your sinuses, including the floor of the sinus above your upper back teeth. Implants in this area sometimes need a sinus lift, and a CBCT tells me before we start.
• Hidden infections at the tips of your tooth roots that flat x-rays can miss.
• Cracks, breaks, and resorption inside teeth that are hard to diagnose any other way.
• The shape of your jaw joint, also called the TMJ, which we look at when you have jaw pain or grinding issues.
• Impacted teeth, including wisdom teeth, and their relationship to nearby nerves and roots.

One scan, all of that information, in about 20 seconds. That is why this technology changed implant dentistry, root canal diagnosis, and oral surgery planning over the last 15 years.

Why would a dentist order a CBCT scan?

I do not order a CBCT for routine cleanings or simple fillings. You do not need that much information for those visits. I order one when I need to see structures a flat x-ray cannot show me. The most common reasons in my practice are:

• Planning a dental implant. I need to know your exact bone height, bone width, and where your nerve runs before I place an implant. CBCT is the standard of care for this. Per a systematic review by Lang and colleagues in Clinical Oral Implants Research (2012), immediate implants placed in fresh extraction sockets with proper case selection show a pooled 2-year survival rate of 98.4%. CBCT is how I confirm you meet the criteria for predictable outcomes like that.
• Diagnosing a tooth that hurts and we cannot see why. Sometimes a tooth has a hidden infection or a vertical root crack. CBCT shows me what a 2D x-ray cannot.
• Planning a complicated root canal. If your tooth has unusual root anatomy, I want to see it in 3D before I start treatment.
• Wisdom tooth removal, especially lower wisdom teeth that sit close to the main nerve in your jaw.
• Evaluating jaw joint pain when conservative treatment is not working.
• Looking at airway anatomy for patients we suspect have sleep-breathing issues.

If I recommend a CBCT for your case, I will sit with you at the consult-room screen and walk through exactly what we are looking for. That is part of our process. You do not get a treatment plan in this office without me showing you the picture I am working from.

Does a CBCT show all teeth?

Yes. A full-field CBCT scan captures every tooth in your upper and lower jaw, plus the bone, sinuses, and nerves around them. We can also do smaller, focused scans when I only need to see one area, which uses less radiation. The size of the scan I order depends on what I am trying to diagnose. If you are coming in for implant planning on a single back tooth, you probably do not need a scan of your whole skull. I will pick the right field of view for your case.

Will a CBCT scan show an infection?

Yes, and this is one of the most useful things about it. A CBCT can show me an infection at the tip of a tooth root that is not visible on a regular x-ray yet, especially infections on the side of a root or behind another root that hides it from a 2D view. If you have a tooth that hurts but your previous dentist could not find a problem, a CBCT often gives me the answer. Infections show up as dark spots in the bone around the root. The CBCT lets me measure how big the lesion is, where it sits relative to your sinus or nerve, and whether the tooth can be saved with a root canal or whether we are looking at extraction and an implant.

What is the most common incidental finding on a CBCT?

An incidental finding is something I see on the scan that we were not specifically looking for. The most common ones I see in my practice are:

• Sinus inflammation or sinus cysts. The floor of your upper sinus sits right above the roots of your upper back teeth, so it is in every dental CBCT.
• Calcifications in the carotid artery visible at the edge of the scan. If I see these, I will tell you and recommend you mention it to your primary care doctor.
• Bone changes from grinding that you may not have known you do at night.
• Old root canal infections that have never bothered you but are still present.
• Cysts or growths in the jaw that do not cause pain yet.

If I find something outside my specialty, I tell you what it is, what it might mean, and who you should see. That is part of reading the whole scan, not just the part that prompted the visit.

How long does a CBCT scan take?

The scan itself takes about 20 to 40 seconds. You stand or sit in our machine, hold still, and the arm rotates once around your head. There are no injections, no contrast dye, and nothing goes in your mouth except a small bite stick to position you. From the moment you walk into the room until you walk out, plan on about 5 to 10 minutes including positioning. The reading takes longer. I review your scan carefully on the consult-room monitor, often with you sitting next to me, and walk through what I see. That conversation typically runs 15 to 30 minutes depending on what we are diagnosing.

What does a CBCT scan cost?

Costs vary depending on the size of the field, your insurance, and whether the scan is part of a broader treatment plan. We will give you a clear number before we do the scan, never after. If you do not have dental insurance, ask our team about our in-office Dental Savings Plan, which gives uninsured patients a flat annual fee structure and discounts on procedures, including imaging when it is medically necessary. For larger treatment plans involving implants or full-mouth rehabilitation, we work with CareCredit, Proceed Finance, Sunbit, and Cherry for monthly payment options.

When is cone beam CT necessary?

It is not necessary for everyone, and I do not order it just because we have the machine. Here is when I consider it medically necessary in my practice:

• You are getting a dental implant and I need to confirm bone volume and nerve position.
• You are getting All-on-4 or full-arch implants and I need a complete map of your jaw.
• You have a tooth that hurts and I cannot diagnose the cause from a 2D x-ray.
• You need a wisdom tooth out and the tooth sits close to your jaw nerve.
• You have ongoing jaw joint pain that has not responded to conservative treatment.
• You have had previous dental work that may have left a hidden issue.

If your case does not call for a CBCT, I will not order one. The right diagnostic tool for the right situation, not the most expensive tool for every situation.

What our patients say about the diagnostic process

One of the things patients tell us they appreciate is that we take the time to explain what we see. Here is a Google review from one of our patients, Hannah: “Amazing place. Beginning to end, from the check-in at the front, to the exam and questions, they were thorough and everyone there was very accommodating. The dental experience and practice is still new to the downtown and every detail has been thought of with brand new technology, very spacious and a homey decor, made to put you at ease. Each case is personalized and all options carefully explained. He doesn’t do things that aren’t necessary.” That last line matters. We do not order tests you do not need, and when we do recommend something like a CBCT, we explain why.

What happens after your CBCT at Limitless Dental®

If your dentist or specialist recommended a CBCT, or you are coming to us for a consult that needs one, here is what your visit looks like:

1. Scan. About 20 to 40 seconds in our machine. You stand or sit upright.
2. Review with me. We sit at the consult-room monitor together. I rotate the 3D image, point out what I see, and explain it in plain language. No jargon, no rushed walk-through.
3. Treatment plan. I show you the options based on what the scan tells us. If you need an implant, you see exactly where it goes and what the bone looks like. If you need a root canal, you see the lesion. If you need surgery, you see the nerve I am working around.
4. Questions. Take your time. Bring your spouse, your child, your notes. This is your decision, not mine.

We treat adults only, and we are a privately owned practice, so the plan you get from me is the plan I think is right for you. Not a corporate algorithm, not a script.

Ready to get clear answers?

If you have a tooth that hurts and no one has been able to tell you why, if your previous dentist mentioned an implant and you want a second look, or if you just want to know what is actually going on with your mouth before you commit to a plan, a CBCT-based consult is the right place to start. Call our front desk at (551) 525-8284 to schedule a consult. We are at 314 Coles Street in the Cast Iron Loft Building in Jersey City, and we have early morning and late afternoon slots if you need them. Existing patients can reach the team at (201) 484-0480. I look forward to walking through your scan with you.

Frequently asked questions about CBCT dental scans

Is a CBCT scan safe?

Yes. A CBCT scan uses lower radiation than a medical CT scan and is targeted to the area we need to see. The radiation dose is roughly comparable to a few days of natural background radiation. We only order CBCT when the diagnostic benefit clearly outweighs the small dose.

Will my insurance cover a CBCT scan?

Some dental insurance plans cover CBCT when it is medically necessary, such as for implant planning or complex diagnosis. Coverage varies. Our team will check your benefits before the scan and give you a clear cost.

Do I need a referral for a CBCT scan?

No. If you are a patient at Limitless Dental® and your case calls for one, I will order it as part of your treatment plan. If another dentist or specialist referred you to us for a scan, bring their referral so I know exactly what they are looking for.

How is a CBCT different from a regular dental x-ray?

A regular dental x-ray is 2D and shows me a flat picture of a few teeth from one angle. A CBCT is 3D and shows me your whole jaw, sinuses, and nerves from every angle. Both are useful. CBCT is for complex cases where 2D is not enough.

Can a CBCT scan diagnose TMJ problems?

It can show me the bone shape of your jaw joint and any structural changes there. For soft tissue inside the joint, an MRI is sometimes better. We use CBCT as part of a full TMJ workup, not the only tool.

Ready to take the next step with Limitless Dental®? Request an appointment online or call our Jersey City office at (551) 525-8284.