Nortje, Christoffel JohannesDawray, Naazia2025-01-282025-01-282023https://hdl.handle.net/10566/19935Fibrous dysplasia of the jaws is classified as a fibro-osseous lesion. These lesions represent a benign group of lesions with similar clinical, radiological and histological features and are recognised by the replacement of healthy bone by fibro-osseous connective tissue. Fibrous dysplasia is usually diagnosed in the first to third decade of life. Females are more commonly affected than males. Fibrous dysplasia has a predilection for the maxilla over the mandible but can affect any bone. Clinically, fibrous dysplasia presents as an asymptomatic swelling causing facial asymmetry. Radiographically, fibrous dysplasia is initially radiolucent, is a mixed radiodensity in the intermediate stage and becomes densely radiopaque as it matures. The margins are ill-defined, merging with surrounding normal bone. Maxillary lesions tend to displace the maxillary sinus whereas mandibular lesions tend to cause displacement of the inferior alveolar nerve canal. Expansion of the cortex and loss of lamina dura are common radiographic features of fibrous dysplasia.enCraniofacialFibro-osseous lesionsFibrous dysplasiaJawMandibleThesis