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Bisphosphonate ⁃ related osteonecrosis of the jaw (BRONJ) is a class of disease due to complications of long ⁃term use of bisphosphonates drugs such as zoledronic acid, phosphoric acid, etc. It is mainly manifested in the mouth as a result of tooth extraction or appearing spontaneously mandibular long⁃term healing wounds, sequestrum expo⁃ sure, local soft tissue swelling with pain and pus, etc. The X⁃ray showed irregular bone destruction and bone sclerosis as the lesions progress. At present, the diagnosis and treatment of the disease has not reached agreement. In this paper, clinical diagnosis and treatment on BRONJ in recent years were reviewed.