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Fractures of the coronoid process are the rarest mandibular fractures and are mostly associated with other maxillofacial fractures. They are most often encountered in trauma. The CT-scanner is the gold standard for locating and characterizing this lesion. Although the diagnosis is made radiologically, clinical examination may reveal various symptoms specific to this fracture, which may appear frustrated when other facial fractures are associated. In most cases, conservative treatment by intermaxillary fixation is preferred. However, in specific cases, surgical intervention such as coronoidectomy or open reduction with osteosynthesis is indicated. The type of fracture, its location, the delay before its management, the clinic and the presence of associated fractures guide the therapeutic attitude. Surgical management must be followed by early and intensive physiotherapy to avoid zygomatico-coronoid ankylosis, the main complication of this fracture.