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Key Insights into Antiresorptive Drug Use and Osteonecrosis in Osteoporotic Patients Undergoing Tooth Extractions: A Clinical and CBCT Assessment

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Journal Osteoporos Int
Date 2024 May 20
PMID 38767743
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Abstract

Purpose: To describe the effects of antiresorptive drugs (ARD) in the maxilla and mandible and risk factors for medication-related osteonecrosis of the jaws (MRONJ) in osteoporotic patients undergoing tooth extractions using clinical data and cone beam computed tomography (CBCT).

Methods: This retrospective cohort study collected clinical and CBCT data from 176 patients. The study group (n = 78; 224 extractions) received ARD treatment, underwent tooth extraction, and had a pre-operative CBCT. Additionally, age-, sex-, and tooth-matched controls were selected (n = 98; 227 extractions). Radiographic examinations were performed independently by three calibrated examiners. Statistical analysis included Chi-square, Fisher's exact, Mann-Whitney U, and t-tests to contrast clinical and radiographic data between study and control, MRONJ + and MRONJ - , and bisphosphonate and denosumab patients/sites. Significance was set at p ≤ 0.05.

Results: From the study group, 4 patients (5%) and 5 sites (2%) developed MRONJ after tooth extraction. ARD-treated patients exhibited significantly more thickening of the lamina dura and a longer average mucosal healing time (4.4 weeks) than controls (2.6 weeks). In the study group, MRONJ risk significantly increased with corticosteroid intake and in multi-rooted teeth. No significant differences between bisphosphonates and denosumab use were seen in the tomographic features (p > 0.05). Lastly, bone sequestrum was exclusively observed in osteoporotic patients, who exhibited post-operative exposed bone or histological evidence of osteonecrosis.

Conclusion: Osteoporotic patients under ARD may exhibit thickening of the lamina dura and prolonged post-operative healing. Among these patients, multi-rooted teeth are at higher risk for MRONJ than single-rooted teeth. Sequester formation is a radiographic indicator of osteonecrosis.

References
1.
Kwack D, Park S . Prediction of medication-related osteonecrosis of the jaw (MRONJ) using automated machine learning in patients with osteoporosis associated with dental extraction and implantation: a retrospective study. J Korean Assoc Oral Maxillofac Surg. 2023; 49(3):135-141. PMC: 10318313. DOI: 10.5125/jkaoms.2023.49.3.135. View

2.
Ruggiero S, Dodson T, Fantasia J, Goodday R, Aghaloo T, Mehrotra B . American Association of Oral and Maxillofacial Surgeons position paper on medication-related osteonecrosis of the jaw--2014 update. J Oral Maxillofac Surg. 2014; 72(10):1938-56. DOI: 10.1016/j.joms.2014.04.031. View

3.
Shudo A, Kishimoto H, Takaoka K, Noguchi K . Long-term oral bisphosphonates delay healing after tooth extraction: a single institutional prospective study. Osteoporos Int. 2018; 29(10):2315-2321. DOI: 10.1007/s00198-018-4621-7. View

4.
Hansen P, Knitschke M, Draenert F, Irle S, Neff A . Incidence of bisphosphonate-related osteonecrosis of the jaws (BRONJ) in patients taking bisphosphonates for osteoporosis treatment - a grossly underestimated risk?. Clin Oral Investig. 2012; 17(8):1829-37. DOI: 10.1007/s00784-012-0873-3. View

5.
Taylor T, Bryant C, Popat S . A study of 225 patients on bisphosphonates presenting to the bisphosphonate clinic at King's College Hospital. Br Dent J. 2013; 214(7):E18. DOI: 10.1038/sj.bdj.2013.327. View