Background: Medication-related osteonecrosis of the jaw (MRONJ) is a serious, debilitating condition of the jaw bones. Dental extraction is the most significant independent risk factor for MRONJ. This interim study aimed to evaluate the demographics, medical data and outcomes of patients at risk for MRONJ who underwent dental extractions in a dedicated MRONJ clinic following a risk reduction protocol at a large public dental clinic in New South Wales Health.
Methods: A retrospective study analysed demographic and clinical data of patients at risk for MRONJ who underwent dental extractions between March 2020 and April 2024.
Results: Data from 329 at-risk patients who underwent 836 dental extractions were included. Most patients were women (75.1%) with a median age of 74 years (IQR 67-80). The primary indication for medications was osteoporosis (85.4%), with Denosumab being the most frequently prescribed (66.9%). Eighteen patients (5.5%) developed MRONJ at 8 weeks of follow-up. Patients categorized as high-risk had a higher incidence of MRONJ (72.2%) compared to the low-risk group (22.2%).
Conclusion: This study is the first retrospective audit carried out after implementing preventive protocols in this dedicated MRONJ clinic. The higher incidence of MRONJ in patients classified as 'high risk' underscores the importance of considering individual risk factors in their treatment.
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