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  • Title: Resolution of oral bisphosphonate and steroid-related osteonecrosis of the jaw--a serial case analysis.
    Author: Chiu CT, Chiang WF, Chuang CY, Chang SW.
    Journal: J Oral Maxillofac Surg; 2010 May; 68(5):1055-63. PubMed ID: 20403529.
    Abstract:
    PURPOSE: To offer recommendations of risk factors, prevention, and treatment of oral bisphosphonate and steroid-related osteonecrosis of the jaw (BSRONJ) in Taiwan. MATERIALS AND METHODS: Twelve patients were clinicopathologically proved to have bisphosphonate-related osteonecrosis of the jaw (BRONJ). All of the patients were taking oral bisphosphonates and were concurrently administered long-term steroids. Of the 12 patients, 3 patients were assigned to the first stage of BRONJ; 5 patients were assigned to the second stage, and 4 patients were assigned to the third stage. The patients' symptoms, localization of necrosis, presence of a fistula, and association with possible triggering factors for onset of the lesion were recorded. RESULTS: The radiologic investigations revealed osteolytic areas and scintigraphy demonstrated increased bone metabolism. Microbiologic analysis showed pathogenic actinomycosis organisms in a majority of patients (91.6%). Antibiotic therapy, minor debridement surgery, and combined hyperbaric oxygen therapy were useful in obtaining short-term symptomatic relief. CONCLUSIONS: Comorbidities of steroid use along with bisphosphonates may cause osteonecrosis of the jaw to occur sooner, be more severe, and respond more slowly to a drug discontinuation. The clinical disease of BSRONJ is more severe and more unpredictable to treat than BRONJ. From the data gained from other published studies of BRONJ and our clinical experience with the series of cases of BSRONJ, we offer recommendations of risk factors, prevention, and treatment of BSRONJ in southern Taiwan.
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