What is a Coronectomy? Preserving nerve health
A coronectomy is the deliberate removal of a wisdom tooth's crown while leaving the intact roots in the jawbone. It is performed exclusively on lower wisdom teeth to protect the inferior alveolar nerve (IAN), which controls sensation to the lip and chin.
When is it recommended?
This procedure is considered when X‑rays or a CBCT scan show the tooth roots are dangerously close to the nerve canal. It is only an option if the tooth is healthy (no active infection, cysts, or tumours).
Coronectomy vs. Extraction: quick view
| Procedure | Action | Primary Goal |
|---|---|---|
| Standard extraction | Remove entire tooth (crown & roots) | Eliminate the whole tooth |
| Coronectomy nerve-sparing | Remove crown only; leave roots | Remove disease risk while avoiding nerve damage |
📊 Cost estimator
Use this tool for a general educational estimate. Actual costs depend on your location, surgeon, and case complexity.
📋 Estimated cost range (per tooth)
These are educational estimates only, based on national averages. Does not replace a formal consultation.
Our information is grounded in research from leading health organizations. We encourage you to explore their resources for further reading.
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📑 Clinical References
- Renton T, Hankins M, Sproate C, McGurk M. A randomised controlled clinical trial to compare the incidence of injury to the inferior alveolar nerve as a result of coronectomy and removal of mandibular third molars. British Journal of Oral and Maxillofacial Surgery. 2005.
- O'Riordan BC. Coronectomy (intentional partial odontectomy of lower third molars). Oral Surgery, Oral Medicine, Oral Pathology. 2004.
- Leung YY, Cheung LK. Safety of coronectomy versus excision of wisdom teeth. Oral Surgery, Oral Medicine, Oral Pathology. 2009.
Medical disclaimer: This information is for educational purposes and does not replace professional medical advice. Always consult a qualified dentist or oral surgeon.