Skip to content

Computed Tomography of the Teeth and Mandible Without Contrast

Published: August 9, 2026Updated: August 16, 2026

A CT scan that creates detailed images of the teeth, jawbone, and surrounding structures without using IV contrast.

Quick summary

["This scan provides detailed images of the teeth and jawbone to help evaluate problems that may not be clearly visible on standard dental X-rays."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
87899-1
Short code
CT Teeth.mand WO contr
Synonyms
CT Teeth.mand WO contr
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

Computed tomography (CT) uses X-rays to create detailed cross-sectional images of the teeth, mandible (lower jaw), and nearby facial structures. This version is performed without contrast, meaning no contrast dye is injected.

Why might I need this test?

A dental CT may be used to evaluate jaw fractures, persistent tooth or jaw pain, infections, suspicious bone changes, impacted teeth, or other structural problems. It may also help a dentist or oral surgeon plan procedures involving the teeth or jawbone.

How is the test performed?

You will lie on a CT table while an X-ray machine rotates around the head and neck area. The scan is usually brief, and a technologist will explain the process and help position you so you remain still.

How do I prepare for the test?

Follow the facility's instructions, remove removable dental appliances if asked, and tell the technologist about any metal in the scanned area. Tell the staff if you are pregnant or may be pregnant; fasting is generally not required for a scan without contrast, but the ordering provider may give specific instructions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

The scan may show fractures, tooth or bone infections, cysts, impacted teeth, abnormal bone growth, or other structural changes. These findings should be interpreted by a dentist, oral and maxillofacial specialist, radiologist, or other qualified clinician in the context of your symptoms and examination. A CT image alone does not establish a final diagnosis.

Short name

Dental CT Without Contrast

Frequently asked questions

Is this the same as a routine dental X-ray?
No. Dental CT produces multiple detailed cross-sectional images and is generally used when two-dimensional X-rays do not provide enough information or when detailed evaluation of the jaw and surrounding bone is needed.
Will I receive contrast dye?
No. This test is specified as being performed without contrast, so no IV contrast dye is typically injected. Tell the staff if you have previously had an allergic reaction to contrast, although it is not used for this examination.
Will the scan hurt?
The CT scan itself is painless because it uses X-rays rather than needles. You may be asked to hold very still, and the scanning equipment can feel close to your head or neck.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy