Can it be natural?
Yes, for example at incisal edges.
← All explanationsTranslucency
Why do tooth edges sometimes look slightly see-through?
Translucency means that a material allows some light through while scattering it. Enamel and tooth-coloured restorative materials have these optical properties. The background can particularly influence thin incisal edges. Translucency is not the same as tooth colour or proof of damage.
For training & practice ↓
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Understand light and background
A tooth does not look identical under every light. A dark background can make a light-transmitting edge appear greyer without establishing a diagnosis.
Consider material and thickness
Light transmission depends in part on the material and its thickness. Being highly translucent does not automatically suit every restoration.
Assess changes
A new or increasing change, or sensitivity, should be examined. A photograph alone cannot reliably distinguish normal enamel, wear and other causes.
Read the full explanation
Understand light and background
A tooth does not look identical under every light. A dark background can make a light-transmitting edge appear greyer without establishing a diagnosis.
Consider material and thickness
Light transmission depends in part on the material and its thickness. Being highly translucent does not automatically suit every restoration.
Assess changes
A new or increasing change, or sensitivity, should be examined. A photograph alone cannot reliably distinguish normal enamel, wear and other causes.
Notes on the teaching images
- Translucency means partial light transmission. It is especially visible at thin tooth edges.
- Lighting, background and thickness affect appearance. Transillumination is not the same as tooth colour in daylight.
- A changed appearance can have several causes. Noticeable new changes should be assessed in the overall clinical context.
At a glance
Always better in ceramic?
No, the underlying surface and design matter.
A new change?
Have the cause and tooth tissue examined.
Knowledge in motion
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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
Translucency, transparency and opacity
Translucent means partly light-transmitting with scattering. Transparent means largely see-through. Opacity describes blocking the view of the underlying background.
Quick answers
Are see-through edges always unhealthy?
No. Some light transmission can be part of natural appearance. Whether tissue loss or another finding is present depends on examination and history.
Why not make every crown as translucent as possible?
It needs to suit the other teeth and its underlying structure. Covering a dark underlying surface requires consideration of masking ability as well as light transmission.
Can whitening rebuild missing enamel?
No. Whitening does not rebuild lost hard tooth tissue. If tissue loss is suspected, its cause should first be assessed.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
Is this light transmission natural for my teeth, or is there evidence of a change in the tissue?
Do tooth edges suddenly look different or feel sensitive? Their tissue and history can help explain the change.
Have the tooth surface assessedAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Light scattering
- Redirection of light within a material.
- Opacity
- The ability to mask the background.
- Substrate
- Tooth tissue or material beneath a visible restorative layer.
Make the distinction
Translucent means partly light-transmitting with scattering. Transparent means largely see-through. Opacity describes blocking the view of the underlying background.
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.