Journals on Medical Research - BJSTR Journal

Abstract

#Coronectomy, a surgical technique that has been developed for impacted mandibular third molars that their roots are in intimate vicinity to the inferior alveolar nerve, refers to the removal of the tooth crown while retaining the root/s within the jawbones. We report the first case in which #coronectomy was successfully used to treat a case of a partially impacted mandibular third molar with recurrent #pericoronitis in a patient diagnosed with #florid osseous dysplasia. In this condition the involved bone features poor cellularity and vascularity, therefore increasing the risk of abnormal healing and secondary infection following surgical procedures. We suggest that coronectomy should be considered also in other conditions that affect the quality of the jawbones that result in contraindication for complete third molar extraction. Coronectomy has been developed as a relatively new treatment modality for mandibular third molars, when surgery is necessary in case of an intimate anatomic proximity between the inferior alveolar nerve (IAN) and the roots of these teeth [1,2]. The procedure of coronectomy intentionally retains the roots and the rational is to decrease the prevalence of IAN injury compared with the conventional total removal of the lower third molar [3]. Osseous #dysplasias are a group of idiopathic processes located in the tooth-bearing areas characterized by replacement of normal bone by fibrous tissue and #metaplastic bone[4] When osseous dysplasias occur bilaterally in the mandible or even involving all jaw quadrants, the condition was termed as florid osseous dysplasia (FOD) and was first described by Melrose et al [5]. FOD is commonly seen in middle aged black females and is quite rare in Caucasians and Asians [4,6,7].

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Third Molar Coronectomy in a Patient with Florid Osseous Dysplasia: A New Application for a known Technique by Adrian Kahn in BJSTR

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