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Seongmo Dental Clinic · Seongbuk-gu, Seoul

HDX Dentri · Low-Dose 3D CT

"It keeps hurting and I don't know why" is the most frustrating thing to hear.

Now we start by confirming the cause in three dimensions.

Seongmo Dental Clinic uses a low-dose premium 3D CT (HDX Dentri) to view bone, nerve canals, root-tip lesions, and accessory canals in three dimensions. Structures that overlap on a 2D X-ray are separated out, changing the evidence base for unexplained pain and implant planning.Sungshin Univ. Seongmo Dental Clinic

Precision 3D CT Diagnosis (HDX Dentri)
Diagnostic Info2D Image
3D Volume
Structures separated for viewing
Surgical Planning
Simulated Placement
Linked to guide fabrication
Dose
Low-Dose
Premium EquipmentSuccessful treatment starts with how accurately the diagnosis was made.
3D CT is no longer optional — it's a baseline requirement.
HDX Dentri 3D CT
Device
Method
Low-Dose Cone Beam CT (CBCT)
Applications
Implants · Wisdom Teeth · Root Canals · TMJ
Integrates With
Surgical Guides · Scan Data Registration
01
What is 3D CT

FAQ
Sungshin Univ. Dental Clinic 3D CT —

what does it show?

HDX Dentri
3D CT (cone beam CT) is a diagnostic device that reconstructs the jawbone, teeth, nerve canals, sinuses, and more into a three-dimensional image. Seongmo Dental Clinic uses low-dose premium equipment to plan implants, extractions, and root canal treatment.
Low-Dose 3D CT
3D
Structures Read Separately
All Treatment Areas

Surgical/Restorative/TMJ

Successful treatment starts with how accurately the diagnosis was made. Seongmo Dental Clinic raises the diagnostic bar with low-dose premium 3D CT that analyzes every possibility in three dimensions. This is no longer optional — it's a requirement for high-quality care.

A standard panoramic image compresses a 3D structure onto one flat plane, causing overlap and distortion. 3D CT lets us slice through any cross-section to directly check bone width and height, nerve canal position, and lesion extent.

HDX Dentri — Core Technology
Identifying the Cause of Hidden PainIt finds fine cracks, root-tip inflammation, and accessory canals invisible on a 2D X-ray
, clearly diagnosing the reality behind pain that once had no identifiable cause.
Improved Precision in Every Surgical ProcedureBeyond implants and wisdom-tooth extraction, in apicoectomy and sinus surgery too, it captures anatomical structures in 3D to avoid at-risk nerve canal locations in advance
, minimizing complication risk.
Maximizing the Quality of Root Canal Treatment
Identifying the number, shape, and curvature of canals in advance improves the accuracy and success rate of root canal treatment.
Transparent Communication & Trust

We review the 3D image together with you and explain exactly what's happening. This improves understanding and enables transparent care without over-treatment.Only an accurate diagnosis prevents over-treatment,

02
Pain diagnosis

and makes exactly the necessary treatment possible.
Pain with no clear cause —

3D reveals it

The extent of root-tip inflammation, a suspected tooth crack, a missed accessory canal, or the relationship to a neighboring tooth or the sinus tend to overlap on a 2D image, which is why 3D reading is needed.
Root-Tip Lesion
Extent confirmed
Accessory Canal
Missed canal identified
Sinus

Inflammation link checked

Tooth pain rarely has a single cause. Nerve inflammation, cracks, gum problems, occlusal overload, even sinus inflammation can all present with similar symptoms. Without pinpointing what to treat, treatment repeats.

Seongmo Dental Clinic uses 3D CT together with Q-ray fluorescence diagnosis and T-scan occlusal analysis. Checking structure, bacterial activity, and force distribution separately narrows down the cause.

What We Read Together
Root-Tip (Apical) Lesion
Extent confirmed
Accessory Canal
Missing a canal that exists as an anatomical variation leads to recurrence. 3D reading confirms number and direction.
Suspected Fracture/Crack

We check bone changes and bone loss around the fracture line to judge whether the tooth can be preserved.Precisely identifying the cause

03
Surgery

is how we reduce unnecessary treatment.
Implants & Wisdom Teeth —

a plan that avoids the nerve

3D CT confirms bone width and height and the position of the inferior alveolar nerve canal and sinus, then a simulated placement plan is made and a surgical guide is printed in-house to place the implant exactly as planned.
Nerve Canal Confirmed
Inferior alveolar nerve avoided
Bone Measurement
Width/height/density
Guide

Placed exactly as planned

An implant is work done inside bone you can't see. Without measuring the distance to the nerve canal, the bone height beneath the sinus, and the gap to a neighboring root in advance, the decision becomes a gamble.

Wisdom-tooth extraction also calls for a different approach depending on the root's relationship to the nerve canal. Seongmo Dental Clinic registers Primescan scan data to the 3D CT plan to make a guide, and manages post-surgical stability with ACTILINK surface activation and T-scan occlusal adjustment.

Pre-Surgical Checks
Distance to the Inferior Alveolar Nerve Canal
The most important safety standard for lower-jaw implants and wisdom-tooth extraction.
Sinus Position & Bone Height
The upper posterior often lacks sufficient bone height, so we judge whether bone grafting is needed.
Bone Width & Density

Factored into implant diameter, initial fixation method, and healing-period planning.Surgical safety starts with

04
Communication

measurement, before it starts with hand skill.
We look at

the same screen together with you

Seongmo Dental Clinic reviews the 3D image together, explains the location and extent of the problem, and walks through treatment options and their trade-offs before you decide.
Reviewed Together
3D image explained
Options Presented
Dose
Low-Dose

Only the necessary area scanned

Scanning is limited to the area needed and kept low-dose. Seongmo Dental Clinic, near Exit 2 of Sungshin Women's University Station, has guided diagnosis and treatment planning through comprehensive dentistry specialist care since opening in 1998.

Scan & Reading Flow

01 — Scan
The equipment rotates briefly to capture the scan. There's no pain.
02 — Reading & Explanation
We review cross-sectional images together and explain the cause and extent.
03 — Planning
If needed, the data is registered with scan data to build a surgical or restorative plan.

Treatment decided while looking at the same screen leaves the fewest regrets.

Comparison

2D X-ray vs. 3D CT

ComparisonPanoramic/Standard X-raySeongmo Dental Clinic 3D CT
Image Information2D projection3D cross-sectional reconstruction
Structure OverlapOverlappingSeparated into any cross-section
Inferior alveolar nerve avoidedEstimatedWidth/height/density measured
Nerve Canal PositionRoughly identifiedDistance measurable
Extent confirmedHard to identifyNumber/direction confirmed
Structures separated for viewingJudgment based on experienceSimulated placement/guide-linked

Not every treatment requires a CT scan; it's used only when needed, under low-dose conditions.

Glossary

3D CT Glossary

Cone Beam CT (CBCT)
A device that uses a cone-shaped X-ray beam to capture the dental region in three dimensions.
Inferior Alveolar Nerve Canal
The passage for the nerve and blood vessels running through the lower jaw; must always be avoided during implants and extractions.
Missed canal identified
A hollow space inside the cheekbone area, closely related to bone height in the upper molar region.
Apical Lesion
An inflammatory lesion at the tip of a tooth root.
Surgical Planning
The process of planning implant position, angle, and depth in advance from CT data.
Registration (Matching)
Aligning a CT image and an intraoral scan into a single coordinate system.
FAQ

Sungshin Univ. 3D CT Diagnosis — vs. 2D X-ray

I'm concerned about 3D CT radiation dose.

Seongmo Dental Clinic uses low-dose premium equipment and limits the scan area to what's necessary. Dental cone beam CT dose is generally lower than a standard medical CT, and we scan only when needed.

How long does the scan take, and does it hurt?

The equipment rotates around your head for a short time. There's no pain or contact discomfort — you just hold still briefly.

Do I have to get a CT scan for an implant?

Placing an implant without confirming bone volume and nerve canal position is risky. Seongmo Dental Clinic makes 3D diagnosis standard before surgical procedures like implants and wisdom-tooth extraction.

Can I get a scan while pregnant?

In principle, scanning is avoided during pregnancy; if truly necessary, we use protective measures and the smallest possible area. Please be sure to let us know if you're pregnant.

Can I bring a CT scan from another dental clinic?

Yes, we'll reference the image file if you bring it. However, additional scanning may be needed if the timing, area, or purpose differs.

What does a CT scan cost?

Coverage depends on diagnostic purpose and applicable criteria. We provide pricing before the scan, and non-covered items can also be checked on our fee guide page.

References

References — Authoritative Medical Sources

Related Treatment Info

Results of any dental treatment can vary with individual oral condition, and whether a device applies depends on the case. Treatment method should be decided after a precise diagnosis and thorough consultation with your provider.