Always disease?
No.
← All explanationsImaging artefact
What is an artefact in a dental image?
An imaging artefact is an image-related feature that does not correspond to the actual anatomy. In dental X-rays or CBCT, movement, strongly X-ray-absorbing materials or image reconstruction can produce such appearances.
For training & practice ↓
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Distinguish image from anatomy
A line or shadow may arise during image formation. An unusual area is therefore not automatically a fracture, decay or inflammation.
Metal and movement
Dense materials may produce bright or dark streaks in CBCT. Head movement can generate double contours. Different causes may have similar appearances.
Check diagnostic adequacy
The reader considers the whole dataset and clinical findings. Another exposure is not automatic; it needs its own justified diagnostic benefit.
Read the full explanation
Distinguish image from anatomy
A line or shadow may arise during image formation. An unusual area is therefore not automatically a fracture, decay or inflammation.
Metal and movement
Dense materials may produce bright or dark streaks in CBCT. Head movement can generate double contours. Different causes may have similar appearances.
Check diagnostic adequacy
The reader considers the whole dataset and clinical findings. Another exposure is not automatic; it needs its own justified diagnostic benefit.
Notes on the teaching images
- Sectional simulation · not diagnostic data
- Schematic streaks · not a fracture annotation
- Interpretability requires professional assessment
At a glance
Always equipment failure?
No.
Automatically repeat the X-ray?
No; first assess image adequacy and benefit.
Knowledge in motion
Explained in 36 seconds.
Three steps. No audio.
Each scene can also be selected manually.
Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available as text.
Often confused
Artefact or genuine finding?
A genuine finding describes an actual structure or change. An artefact arises from image acquisition or processing. Distinguishing them is part of professional interpretation.
Quick answers
Does an artefact mean the machine is faulty?
Not necessarily. Material properties or movement can cause artefacts even when equipment works correctly.
Is a dark line definitely a crack?
No. It must be assessed with other image planes and clinical findings.
Can software remove every artefact?
No. Improving appearance does not guarantee accurate or diagnostically sufficient information.
At the practice
For the appointment
You can bring this question to your appointment:
Does this artefact affect the answer to our specific clinical question?
Discuss your individual findings and whether a referral is appropriate.
Discuss your findingsAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Reconstruction
- Calculation of an image or volume from measured data.
- Motion artefact
- Image disturbance caused by movement during acquisition.
Make the distinction
A genuine finding describes an actual structure or change. An artefact arises from image acquisition or processing. Distinguishing them is part of professional interpretation.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.