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  • Title: Mandibular bisphosphonate-related osteonecrosis after dental implant rehabilitation: a case report.
    Author: Sverzut CE, Sverzut AT, de Matos FP, Kato RB, Trivellato AE, de Oliveira PT.
    Journal: Implant Dent; 2012 Dec; 21(6):449-53. PubMed ID: 23075811.
    Abstract:
    It has been a matter of debate as to whether dental implant therapies are suitable for patients subjected to long-term use of bisphosphonates (BPs). This report presents a case of a 76-year-old woman who developed BPs-related osteonecrosis of the jaw (BRONJ) in the left hemimandible after dental implant exposure. The implants and the necrotic crestal bone were removed, and postoperatively, a delay in tissue healing with bone exposure was noticed. The histologic analysis of the block biopsies revealed a lamellar bone tissue exhibiting necrotic areas and bacterial colonies associated with the bone outer surface. The bone-implant interface showed viable lamellar bone with enlarged vascular spaces in the areas between the implant threads. The possible mechanisms for the loss of implants in BRONJ patients are discussed, and the potential protocols for dental implant rehabilitation for patients under BP therapies are presented.
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