Tulumbacı, FatihArıkan, VolkanOba, Aylin AkbayAtıl, Fethi2021-01-142021-01-1420192148-75292148-7529https://doi.org/10.15311/selcukdentj.357968https://app.trdizin.gov.tr/makale/TXpjeE56VXdNQT09https://hdl.handle.net/20.500.12587/13847Intra-alveolar root fractures in permanent teeth are rare following dental traumatic injuries. The diagnosis of root fractures depends on careful clinical and radiographic examination. The successful treatment of a root-fractured tooth involves repositioning and fixation. Although the outcome of a root fracture is generally favourable, complications such as pulpal necrosis, radicular resorption and pulpal canal obliteration can arise. A radicular cyst is an inflammatory cyst that develops as a result of untreated dental caries, with pulp necrosis and periapical infection following chemical, physical or bacterial injury. In this case report, the diagnosis and treatment of a rare case of a radicular cyst, which occurred as a result of pulp necrosis following horizontal root fracture, and an apical root fragment, which was displaced by the cystic lesion to the base of the nasal cavity, are presented.eninfo:eu-repo/semantics/openAccessArticle6339639910.15311/selcukdentj.357968371750