Coronectomy-prevention from Injury of the Inferior Alveolar Nerve (N. Alveolaris Inferior)  

Velickovski Boris , Peeva-Petreska Marija , Veleska-Stevkovska Daniela , Kacarska Marina
Department of Oral Surgery – Faculty of Dentistry in Skopje, Ss Cyril and Methodius University, Republic of Macedonia
Author    Correspondence author
International Journal of Clinical Case Reports, 2015, Vol. 5, No. 14   doi: 10.5376/ijccr.2015.05.0014
Received: 30 Jan., 2015    Accepted: 03 Mar., 2015    Published: 04 Apr., 2015
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Boris et al., 2015, Coronectomy-prevenention from Injury of the Inferior Alveolar Nerve (N. Alveolaris Inferior), International Journal of Clinical Case Reports, Vol.5, No.14 1-5 (doi: 10.5376/ijccr.2015.05.0014)


In order to reduce or minimize the present high risk of injury to the inferior alveolar nerve (IAN) determined by an X-ray, some alternative techniques are described for extraction of the lower third molars. Some of these techniques have been confirmed and as such established in surgical practice, while others are subject to future, additional analyzes within the differently designed clinical studies. Coronectomy(partial root removal, deliberate vital root retention, intentional partial odontectomy) is defined as a method of extracting the dental crown and retainig the root which is closely corelated with the IAN.The article presents a case where this type of intervention was performed on the third mandibular right molar with a female patient, 38 years of age, who was referring that the extraction of the third mandibular left molar led to her having unpleasant sensations (paresthesia) for a longer period of time. The indications and contraindications for coronectomy, the surgery phases and post-surgical follow up are explained in details. Today, in the era of medicine/surgery based on evidence, the coronectomy gained enhanced reputation as an effective method in reducing the risk of injury of the inferior alveolar nerve. The injury of the IAN during the extraction of mandibular third molars is clinical and medical-legal issue. For this reason, it is worth considering any therapeutic procedure that reduces this problem. The decision is adopted by the oral surgeon with patient’s consent.

Coronectomy; Oral surgery; Inferior alveolar nerve; Third mandibular molars; Paresthesia
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