4.6 Article

Tooth extraction in patients on zoledronic acid therapy

期刊

ORAL ONCOLOGY
卷 48, 期 9, 页码 817-821

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ELSEVIER
DOI: 10.1016/j.oraloncology.2012.03.009

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Acid zoledronic; Bisphosphonates; BRONJ; Tooth extraction; PRGF; Bone healing; Socket healing; Wound healing

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Objectives: Surgical management of patients following zoledronic acid therapy is particularly difficult, since the dental extraction is the main cause of BRONJ. Methods: A case-control study was conducted on 176 patients treated with intravenous (IV) bisphosphonates for oncologic pathologies who also underwent dental extractions. The study was divided randomly into two groups: 91 were treated with Plasma Rich in Growth Factor Plasma (PRGF) (study group) and the other 85 were not treated with the growth factor preparation (control group). Results: Panoramic X-ray and computed tomography were performed both before and 60 months after surgery. By clinical and radiological diagnosis, BRONJ was diagnosed in only 5 patients in the control group at an average of 91, 6 days after tooth extraction. Conclusions: We hypothesize that Plasma Rich in Growth Factor (PRGF) is important for the successful treatment of patients on bisphosphonates to restore the osteoblast/osteoclast homeostatic cycles via autologous cytokines. Moreover, this protocol reduces the risk of BRONJ when it is necessary to perform dental extractions in patients undergoing IV bisphosphonate treatment. (C) 2012 Elsevier Ltd. All rights reserved.

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