Successful surgical extraction of an impacted mandibular third molar in a patient treated with head & neck radiotherapy and chemotherapy for oral cancer

Osteoradionecrosis(ORN),a pathological condition characterized by a nonvital bone occurring in the site of radiation injury,is one of the significant risks following extraction of highly impacted third molar teeth in patients treated with head&neck radiotherapy for oral cancer.Therefore,the surgery’s meticulous planning is essential to avoid such complications.This case report describes a 63-year-old male patient diagnosed with an impacted lower third molar(tooth#38)with concurrent basal cell carcinoma of the right ear and squamous cell carcinoma of the right vocal cord treated with radiotherapy.Taking into account the patient’s health status,a minimally invasive osteotomy and a corono-radicular separation procedure were performed.This procedure allowed us to reduce the risk of mandibular ORN.Three years later,the healing was complete,and the situation was stable.

Implant Placement in a Cemento-Osseous Dysplasia:A case report

We present a 45-year-old black woman diagnosed with a florid cemento-osseous dysplasia(FCOD)affecting the right lower quadrant and the anterior mandibular region.The patient requested dental implants to rehabilitate the edentulous central lower incisors area(teeth#31 and#41)corresponding to a periapical cemento-osseous dysplasia(PCOD).Successful osseointegration of the two implants was obtained using a two-step procedure in order to limit the risk of complications associated with implant placement.Follow-up at one year showed no recurrence and good implant stability.Due to the abnormal quality of the bone in cemento-osseous dysplasia(COD),implant placement is generally avoided,and no other case reports have been reported in the literature in patients affected by PCOD.The present case suggests that in an appropriate clinical setting,implant placement may be a successful procedure.