head JofIMAB
Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski Publishing Ltd.
ISSN: 1312-773X (Online)
Issue: 2025, vol. 31, issue1
Subject Area: Dental Medicine
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DOI: 10.5272/jimab.2025311.6061
Published online: 10 March 2025

Original article
J of IMAB. 2025 Jan-Mar;31(1):6061-6068
RESEARCH ON RISK FACTORS FOR DEVELOPMENT OF BISPHOSPHONATE-RELATED OSTEONECROSIS OF THE JAWS AMONG BULGARIAN PATIENTS OVER 18 YEARS OF AGE
Boryana Ilieva1ORCID logoCorresponding Autoremail, Yanko G. Yankov2, 3ORCID logo, Tsvetelina Borisova-Papancheva4ORCID logo, Georgi Papanchev5ORCID logo, Vasil Sveshtarov1ORCID logo,
1) Department of Dental, Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Medical University of Sofia, Bulgaria.
2) Clinic of Maxillofacial Surgery, University Hospital "St. Marina", Varna, Bulgaria.
3) Department of General and Operative Surgery, Faculty of Medicine, Medical University Varna, Bulgaria.
4) Department of Conservative Dental Treatment and Oral Pathology, Faculty of Dental Medicine, Medical University of Varna, Bulgaria.
5) Department of Oral Surgery, Faculty of Dental Medicine, Medical University of Varna, Bulgaria.

ABSTRACT:
Introduction: The widespread use of bisphosphonates (BF) led to the discovery of a probable link with the subsequent development of osteonecrosis of the jaw. The aim of the present study is to investigate and analyze the risk factors for the development of bisphosphonate-related osteonecrosis of the jaw (BRONJ) in the Bulgarian population and to compare with those described so far in the world literature.
Material and methodology: This is a retrospective study in which we included 44 patients with BRONJ treated and followed up by the authors' collective for 13 years (2009-2023). In all of them, demographic characteristics, primary disease, initiating cause of the necrosis, type of bisphosphonates, duration of BF therapy, mode of administration of BF, localization of the necrosis were observed and analysed.
Results: There was no statistically significant difference between the two sexes. BRONJ mainly affects patients in the age group of 61-70 years. A significantly higher proportion of the patients had a primary diagnosis of malignancy. The BF administered was mainly Zoledronic acid. BF was administered intravenously. In most of the patients dentoalveolar surgical intervention was carried out. The lower jaw, mainly the distal region, was affected.
Discussion: BRONJ is a multifactorial disease, and knowing the factors influencing the onset of the disease, as well as those influencing the outcome of its treatment, is of utmost importance when choosing a preventive and treatment strategy for the patients receiving BF.
Conclusions: The present article confirms that the demographic characteristics, etiology, and organ involvement of the Bulgarian population with BRONJ match the data in the world literature on the condition.

Keywords: bisphosphonates, osteonecrosis of the jaws, maxillofacial surgery, osteoporosis, malignant disease, tooth extraction, bisphosphonate intake, dentoalveolar surgical intervention,

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Please cite this article as: Ilieva B, Yankov YG, Borisova-Papancheva T, Papanchev G, Sveshtarov V. Research on Risk Factors for Development of Bisphosphonate-Related Osteonecrosis of the Jaws Among Bulgarian Patients Over 18 Years of Age. J of IMAB. 2025 Jan-Mar;31(1):6061-6068. [Crossref - 10.5272/jimab.2025311.6061]

Corresponding AutorCorrespondence to: Boryana Ilieva, Department of Dental, Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Medical University of Sofia; 1, St Georgi Sofiyski Blvd., 1431 Sofia, Bulgaria; E-mail: dr.ilieva@abv.bg

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Received: 28 August 2024
Published online: 10 March 2025

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