When?
Selected teeth close to the nerve.
← All explanationsCoronectomy
Why might only a wisdom tooth crown be removed?
A coronectomy removes the crown of a lower wisdom tooth while deliberately retaining its roots. For selected teeth close to the lower-jaw nerve, this may reduce nerve-injury risk. It is not suitable for every tooth.
For training & practice ↓
AI-generated
Choose a view
Assess nerve proximity
Imaging and examination show the relation of roots to the mandibular canal.
Crown rather than whole tooth
Roots are intentionally retained when suitable.
Plan reviews
Roots may migrate or cause later problems; further treatment is sometimes needed.
Read the full explanation
Assess nerve proximity
Imaging and examination show the relation of roots to the mandibular canal.
Crown rather than whole tooth
Roots are intentionally retained when suitable.
Plan reviews
Roots may migrate or cause later problems; further treatment is sometimes needed.
Notes on the teaching images
- Teaching model showing the proximity of roots and canal.
- Principle of crown removal · not a surgical plan.
- Symbolic illustration: retained roots need planned review.
At a glance
Always suitable?
No.
Afterwards?
Planned reviews.
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
Not a restorative crown
Coronectomy is surgery, not fitting a dental crown.
Quick answers
Is this an accidentally broken tooth?
No. It is a planned procedure requiring consent and follow-up.
Is nerve injury impossible?
No. Risk may be reduced in suitable cases, not eliminated.
Can diseased or non-vital roots be left?
These findings may make the procedure unsuitable and require individual surgical assessment.
At the practice
For a personal discussion
Editorially suggested question to discuss with Dr Niusha Barahmand Pour:
How close are the roots to the nerve, and what are the options?
Discuss your wisdom-tooth findings and whether surgical referral is appropriate.
Discuss a wisdom toothAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- Crown
- Upper part of a natural tooth.
- Mandibular canal
- Bony passage for a nerve and vessels.
- Root migration
- Movement of retained roots.
Make the distinction
Coronectomy is surgery, not fitting a dental crown.
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.