

In the modern world of dentistry and oral medicine, diagnosis no longer relies solely on visual examination or traditional X-rays. Ultrasound imaging has emerged as an advanced and effective tool for detecting a wide range of problems in the oral structures and surrounding tissues. This technique stands out for being safe, painless, and free from ionizing radiation, making it an ideal choice for adults, children, and even pregnant women.In this Dalily Medical guide, we’ll explore everything you need to know about ultrasound for oral structures — how it works, its uses, benefits, potential risks, and the latest advancements in the field.
Ultrasound is a medical imaging technique that uses high-frequency sound waves to create images of internal organs and tissues. When used in dentistry, it helps evaluate salivary glands, muscles, soft tissues, lymph nodes, and even certain pathological lesions inside and around the mouth.
The device emits high-frequency sound waves through a probe.
These waves bounce back after hitting different tissues, and the reflections are captured and transformed into images on a screen.
The appearance of tissues varies according to their density and composition, allowing differentiation between various structures.
Completely safe – no ionizing radiation.
Painless – no surgical intervention required.
Instant results – images appear in real-time during the scan.
High accuracy – especially for soft tissue evaluation.
Suitable for sensitive cases – such as pregnant women and children.
Detecting stones (sialolithiasis).
Diagnosing infections or tumors.
Determining gland size and shape.
Identifying enlarged nodes due to infection or tumors.
Differentiating between inflammatory and cancerous enlargement.
Detecting masses or swellings in the lips, tongue, or floor of the mouth.
Monitoring tumor growth after treatment.
Detecting hematomas or fluid collections.
Determining the extent of muscle or ligament damage.
Assisting in needle guidance for biopsies from masses.
No special preparation required, but you may be asked to remove jewelry or removable dentures.
A medical gel is applied to the area to improve sound wave transmission.
The probe is moved over the target area.
Images appear instantly on the monitor.
Usually takes 10–20 minutes only.
Criteria | Ultrasound | X-ray | CT Scan |
---|---|---|---|
Radiation | None | Present | High |
Instant evaluation | Yes | No | No |
Soft tissue imaging | Excellent | Poor | Good |
Cost | Low | Moderate | High |
Ultrasound imaging is extremely safe with no known side effects.
Some patients may feel mild coldness from the gel or slight pressure from the probe.
Wear comfortable clothing.
Inform your doctor about any previous surgeries in the area.
Bring previous test results for comparison.
3D ultrasound for more detailed structural visualization.
Use of artificial intelligence in image analysis and diagnosis.
Combining ultrasound with other imaging techniques to improve diagnostic accuracy.
1. Is oral ultrasound painful?
No, it is completely painless.
2. Can pregnant women undergo this scan?
Yes, it is entirely safe during pregnancy.
3. Can it replace X-rays?
In some cases, yes, but X-rays are still necessary for evaluating bones and teeth.
Ultrasound imaging for oral structures represents a significant advancement in diagnosing oral, facial, and jaw conditions, thanks to its safety, precision, and immediate results. With ongoing technological developments, it has become an essential tool for dentists and oral specialists, ensuring more accurate and successful treatment plans.