Coronectomy: a recognised procedure?

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This paper reviews the literature on coronectomy with respect to indications, surgical procedure and complications and presents the results of a retrospective study.

Materials and methods:

A retrospective study involving lower third molar surgery performed by a single surgeon in an outpatient extraction clinic under local anaesthesia as well as in day surgery under general anaesthesia was conducted from January 2012 to December 2016.

Materials and methods:

A total of 3654 lower third molars were removed. In the cohort of 855 (23.4%) teeth removed in outpatient under local anaesthetics, 42 (4.9%) were coronectomies and of 2799 (76.6%) removed under general anaesthesia, 172 (6.1%)were coronectomies. The present study also included medically compromised patients and patients with decayed teeth. The technique for the coronectony procedure previously described in the literature was modified in some cases to obtain optimal outcomes.

Materials and methods:

This study also correlates age, sex, medical history, types of impaction, radiological findings and follow-up.


The results showed coronectomies are a safe option to treat lower wisdom teeth having a high risk of neurosensory implications. The technique appears to be associated with a low incidence of complications in medically compromised and patients with decayed teeth.


Coronectomy appears to be a viable technique in those cases where the removal of the whole tooth might put the inferior alveolar nerve at considerable risk.

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