Scleroderma is an autoimmune connective tissue disorder which is characterized by fibrosis of visceral organs, skin and blood vessels. This condition can be localized or systemic. Its estimated prevalence is 250 cases in a million and it is more common in women than in men. Resorption of the mandibular angle and coronoid process can be observed in patients with scleroderma. Pressure of fibrous mucocutaneous tissues is thought to be the cause of the resorption. Decreased number of wrinkles due to sclerosis and distinct facial features because of the atrophy of ala nasi are among common clinical characteristics of this condition. The aim of this case report is to present a 40-year-old female patient with scleroderma who presented with signs of resorption at the angle of mandible, coronoid process, as well as widening of the periodontal space.

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SummaryBackround/Aim: Stafne bone cavity which is also known as lingual mandibular bone defect is generally seen in the posterior region of the mandible. Stafne bone defects of the anterior mandible are very rare, with around 50 cases reported in the English literature. They are generally asymptomatic and incidental lesion findings may be diagnosed during a radiographic examination.Case Report: A 59 year-old female patient was examined for dental complaints. Panoramic radiography revealed a unilocular lesion at the left incisor- premolar area. Dental volumetric tomography scans showed a concavity at the lingual side of the related area. Magnetic resonance imaging was suggested for possible soft tissue pathology and, depending on MRI finding, the cavity was initially diagnosed as Stafne bone defect.Conclusion: The aim of this case report is to describe an unusually located Stafne bone cavity with special emphasis to the need of using special imaging modalities.