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Treatment of Stage 2 Medication-Induced Osteonecrosis of the Jaw: A Case Series. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031018. [PMID: 33498884 PMCID: PMC7908594 DOI: 10.3390/ijerph18031018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/29/2022]
Abstract
Medication-induced jaw osteonecrosis (MRONJ) is a rare and serious disease with a negative impact on patients’ quality of life, whose exact cause remains unclear and which may have a multifactorial origin. Although there are different therapeutic protocols, there is still no consensus. This case series evaluated three patients diagnosed with staged 2 MRONJ treated at the University of Murcia dental clinic according to the protocols described by the Spanish Society of Oral and Maxillofacial Surgery and the American Association of Oral and Maxillofacial Surgeons. Within 12 months of the application of therapeutic protocols, the lesions were completely healed in all cases. Radiography showed slow but progressive healing with normal bone structure. Conservative treatment with antibiotics, chlorhexidine rinses and minimally invasive surgical intervention with necrotic bone resection is effective in treating stage 2 of MRONJ. In cases of refractory osteonecrosis, the application of platelet and leukocyte-rich fibrin (PRF-L) in the surgical approach improves the outcome in soft tissue healing and bone regeneration but further research is needed to confirm its effectiveness.
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Concentration of Penicillin G in Jawbone Affected by Antiresorptive Agent-Related Osteonecrosis Following a Single Preoperative Dose. Antibiotics (Basel) 2020; 10:antibiotics10010017. [PMID: 33375399 PMCID: PMC7824264 DOI: 10.3390/antibiotics10010017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to evaluate the concentration of penicillin G in bone affected by antiresorptive agent-related osteonecrosis of the jaw (ARONJ) following a single preoperative dose of 10 million international units (6000 mg). ARONJ is a major concern in patients administered antiresorptive agents for conditions associated with pathologically increased bone resorption. Antibiotic therapy is a key component of most treatment approaches for ARONJ and penicillin based regimens, providing a cost effective therapy option with a favorable side effect profile, are administered most frequently. In this study, high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS) was applied to evaluate penicillin G concentration in serum and bone samples of 19 patients suffering from ARONJ and undergoing surgical treatment under perioperative intravenous (IV) antibiotic therapy. Penicillin G bone concentrations were above the limit of detection (0.1 μg/g bone tissue) in 16 out of 19 samples, with a median concentration of 2.7 μg/g (range 0.1–8.8 μg/g). Penicillin G concentrations in intraoperative serum samples were above the limit of detection in all serum samples, with a median concentration of 116 μg/mL (range 1–232 μg/mL). Thus, considering bacteria frequently found in ARONJ lesions, penicillin G at levels providing adequate antimicrobial activity was detected in the serum and 16 out of 19 osteonecrotic lesions of patients suffering from ARONJ.
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Risk factors for bisphosphonate-associated osteonecrosis of the jaw in the prospective randomized trial of adjuvant bisphosphonates for early-stage breast cancer (SWOG 0307). Support Care Cancer 2020; 29:2509-2517. [PMID: 32929540 DOI: 10.1007/s00520-020-05748-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/04/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Bisphosphonates reduce bone metastases in postmenopausal women with early-stage breast cancer but carry the risk of bisphosphonate-related osteonecrosis of the jaw (BRONJ). We describe risk factors for BRONJ and compare BRONJ provoked by infection or trauma with spontaneous lesions, which carry a better prognosis. METHODS SWOG 0307 randomized women with stage I-III breast cancer to receive zoledronic acid (ZA), clodronate (CL), or ibandronate (IB) for 3 years, implemented BRONJ prevention guidelines, and collected information about dental health and development of BRONJ. All statistical tests were two-sided. RESULTS Of 6018 women, 48 developed BRONJ. Infection was present in 21 (43.8%). Median time to BRONJ was 2.1 years for ZA, 2.0 years for IB, and 3.4 years for clodronate (p = 0.04). BRONJ was associated with bisphosphonate type (28/2231 (1.26%) for ZA, 8/2235 (0.36%) for CL, 12/1552 (0.77%) for IB), dental calculus (OR 2.03), gingivitis (OR 2.11), moderate/severe periodontal disease (OR 2.87), and periodontitis > 4 mm (OR 2.20) (p < 0.05). Of 57 lesions, BRONJ occurred spontaneously in 20 (35.1%) and was provoked by dental extraction in 20 (35.1%), periodontal disease in 14 (24.6%), denture trauma in 6 (10.5%), and dental surgery in 2 (3.5%). Spontaneous BRONJ occurred more frequently at the mylohyoid ridge. There were no differences in dental disease, infection, or bisphosphonate type between spontaneous and provoked BRONJ. CONCLUSION ZA and worse dental health were associated with increased incidence of BRONJ, with a trend toward additive risk when combined. BRONJ incidence was lower than in similar studies, with prevention strategies likely linked to this. CLINICAL TRIAL NUMBER NCT00127205 REGISTRATION DATE: July 2005.
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Yadegari A, Aminzadeh A, Seyyedkhamesi S, Aminian M. The effect of melatonin on prevention of bisphosphonate-related osteonecrosis of the jaw: an animal study in rats. J Korean Assoc Oral Maxillofac Surg 2020; 46:266-274. [PMID: 32855374 PMCID: PMC7469961 DOI: 10.5125/jkaoms.2020.46.4.266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/04/2019] [Accepted: 08/17/2019] [Indexed: 12/25/2022] Open
Abstract
Objectives Melatonin induces human stem cells, converts pre-osteoblasts to mature osteoblasts, and reduces the duration of this transition. However, melatonin itself prevents activation of osteoclasts. Here, we evaluate the role of melatonin in prevention of bisphosphonate-related osteonecrosis of the jaw. Materials and Methods In this experimental-interventional study, 30 rats were evaluated in 3 groups. The first and second groups received saline and zoledronic acid, respectively, for 4 weeks and the third group received 4 weeks of zoledronic acid and 3 weeks of melatonin simultaneously. First-right-maxillary-molar extraction was performed for all animals, which were sacrificed after 4 weeks of recovery. The extraction sockets were examined histologically for the presence of osteonecrosis, number of osteoclasts and fibroblasts, severity of inflammation, and vascularization. Data were analyzed by chi-square, one-way ANOVA, Tukey, Kruskal–Wallis and Fisher’s exact statistical tests (α=0.05). Results Osteonecrosis was observed in 20%, 90%, and 70% of the first, second and third groups, respectively (P=0.008). The lowest number of osteoclasts and fibroblasts was seen in the third group. Conclusion Melatonin may effectively prevent some undesirable side effects of bisphosphonates. However, further studies are required to confirm the results of this study.
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Affiliation(s)
- Afshin Yadegari
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Atousa Aminzadeh
- Department of Oral Pathology, Faculty of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Sam Seyyedkhamesi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Maedeh Aminian
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Isfahan University of Medical Science, Isfahan, Iran
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Pichardo SEC, van der Hee JG, Fiocco M, Appelman-Dijkstra NM, van Merkesteyn JPR. Dental implants as risk factors for patients with medication-related osteonecrosis of the jaws (MRONJ). Br J Oral Maxillofac Surg 2020; 58:771-776. [PMID: 32631756 DOI: 10.1016/j.bjoms.2020.03.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 03/28/2020] [Indexed: 10/23/2022]
Abstract
An increasing number of patients with medication-related osteonecrosis of the jaws (MRONJ) has recently been reported. It is still being debated whether the presence or placement of dental implants can lead to MRONJ, so the aim of this study was to find out whether dental implants are a risk factor for MRONJ. From January 2003-January 2019 180 patients with MRONJ were seen at the Leiden University Medical Center. Luxating moments for the onset of MRONJ were calculated retrospectively. We collected clinical data and details of antiresorptive medication and found 22 patients with both dental implants and MRONJ. In 18 patients the implants were in the region of the MRONJ and they were included in this study, 14 who had had implants before using antiresorptive drugs and four who had had antiresorptive drugs before or at the time that the implants were placed. The median times between the placement of implants and the diagnosis of MRONJ in these two groups were 24 months and 6 months, respectively. Among the 47 implants, 30 were located in the necrotic region, and all 30 were either lost spontaneously or had to be removed during treatment of MRONJ. Our results show an increased risk for developing MRONJ in patients with dental implants. Both peri-implantitis around previously placed implants, and insertion of dental implants, are risk factors. Prevention of peri-implantitis and caution when inserting dental implants in patients who take antiresorptive medication are therefore important.
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Affiliation(s)
- S E C Pichardo
- Department of Oral & Maxillofacial Surgery (Chair: Prof. Dr. JPR van Merkesteyn), Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands; Center for Bone Quality Leiden, Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands
| | - J G van der Hee
- Department of Oral & Maxillofacial Surgery (Chair: Prof. Dr. JPR van Merkesteyn), Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands
| | - M Fiocco
- Department of Biomedical Data Sciences, Leiden University Medical Center, P.O. Box 9512, 2300 RA Leiden, The Netherlands; Mathematical Institute, Leiden University, P.O. Box 9512, 2300 RA Leiden, Leiden The Netherlands
| | - N M Appelman-Dijkstra
- Department of Internal Medicine, Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands; Center for Bone Quality Leiden, Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands
| | - J P R van Merkesteyn
- Department of Oral & Maxillofacial Surgery (Chair: Prof. Dr. JPR van Merkesteyn), Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands; Center for Bone Quality Leiden, Leiden University Medical Center, PO BOX 9600, 2300 RC Leiden, The Netherlands.
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Pichardo SEC, Broek FWT, Fiocco M, Appelman-Dijkstra NM, van Merkesteyn JPR. A comparison of the cone beam computed tomography findings in medication-related osteonecrosis of the jaws related to denosumab versus bisphosphonates: an observational pilot study. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 129:411-417. [PMID: 32001241 DOI: 10.1016/j.oooo.2019.09.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 09/09/2019] [Accepted: 09/21/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of this study was to compare the radiographic abnormalities on cone beam computed tomography (CBCT) in patients with medication-related osteonecrosis of the jaws (MRONJ) related to denosumab use versus bisphosphonate use. STUDY DESIGN The study included 34 consecutive patients with MRONJ who had a history of exclusive use of denosumab (n = 17) or bisphosphonates (n = 17) and had undergone CBCT for determination of extent of disease. Demographic data of the patients were collected. Differences in radiologic characteristics between patients with denosumab-related osteonecrosis of the jaws (DRONJ) and those with bisphosphonate-related osteonecrosis of the jaws (BRONJ) were scored and studied on CBCT. RESULTS In patients with DRONJ, sequestra (P = .015) and lysis of the cortical border of the jaw (P = .033) were significantly less common than in patients with BRONJ. Subperiosteal bone formation did not differ between the groups (P = .545). There was no association between stage of disease and duration of drug therapy or duration of symptoms for either medication group. CONCLUSIONS The radiologic features of DRONJ may be different from those of BRONJ with regard to the presence of sequestra and cortical lysis and might, therefore, be improperly diagnosed. Underestimation and undertreatment of DRONJ may potentially lead to progression of disease and, thus, make treatment more difficult.
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Affiliation(s)
- Sarina E C Pichardo
- Department of Oral & Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands; Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Frans W Ten Broek
- Department of Oral & Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Marta Fiocco
- Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands; Mathematical Institute, Leiden University, Leiden, The Netherlands
| | | | - J P Richard van Merkesteyn
- Department of Oral & Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands; Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands.
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Sun ZW, Li ZY, Yu D, Zhu JY, Zhang YD, Zhu XM. [Bisphosphonate-related osteonecrosis of the jaw complicated with wrist scaphoid osteomyelitis: a case report]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2019; 37:224-228. [PMID: 31168992 PMCID: PMC7030151 DOI: 10.7518/hxkq.2019.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 11/08/2018] [Indexed: 11/21/2022]
Abstract
Bisphosphonates can directly inhibit osteoclasts, which may lead to increased bone density, reduced blood flow, and osteonecrosis of the jaw. Bisphosphonate-related osteonecrosis is usually observed in the jaw bone. In this article, we report a patient with bisphosphonate-related osteonecrosis of the jaw (BRONJ) complicated with wrist scaphoid osteomyelitis. Furthermore, we introduce the pathogenesis, treatment, and prevention of BRONJ.
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Affiliation(s)
- Zhao-Wei Sun
- Dept. of Oral and Maxillofacial Surgery, Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Zhi-Yong Li
- Dept. of Oral and Maxillofacial Surgery, Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Dan Yu
- Dept. of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Jie-Ying Zhu
- Dept. of Oral and Maxillofacial Surgery, Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yi-Dian Zhang
- Dept. of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Xin-Mei Zhu
- Dept. of Oral and Maxillofacial Surgery, Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
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Khominsky A, Lim MAWT. “Spontaneous” medication-related osteonecrosis of the jaw; two case reports and a systematic review. Aust Dent J 2018; 63:441-454. [DOI: 10.1111/adj.12648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2018] [Indexed: 11/30/2022]
Affiliation(s)
- A Khominsky
- Dental Unit; The Alfred Hospital; Prahran Victoria Australia
| | - MAWT Lim
- Dental Unit; The Alfred Hospital; Prahran Victoria Australia
- Melbourne Dental School; Royal Dental Hospital of Melbourne; Carlton Victoria Australia
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Effect of different doses and durations of teriparatide therapy on resolution of medication-related osteonecrosis of the jaw: A randomized, controlled preclinical study in rats. J Craniomaxillofac Surg 2018; 46:466-472. [DOI: 10.1016/j.jcms.2017.12.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 12/08/2017] [Accepted: 12/21/2017] [Indexed: 11/18/2022] Open
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Wang Q, Liu J, Qi S, Liao X, Liu D, Pan J. Clinical analysis of medication related osteonecrosis of the jaws: A growing severe complication in China. J Dent Sci 2018; 13:190-197. [PMID: 30895120 PMCID: PMC6388813 DOI: 10.1016/j.jds.2017.12.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/08/2017] [Indexed: 02/05/2023] Open
Abstract
Background/purpose Medication-related osteonecrosis of the jaws (MRONJ) is an unusual but quite serious complication. However, its mechanism remains unclear, and its treatment protocol is still controversial. Materials and methods Our study involved 201 osteonecrosis of the jaw (ONJ) patients from September 2006 to March 2017. We analyzed risk factors, clinical characteristics, treatment, etc., by comparing MRONJ with other ONJs. Results Among 201 patients, MRONJ accounted for 14.71% and it presented a consistent increase tendency. In comparison with other ONJs, we considered advanced age, maxilla lesion, diabetes mellitus, tooth extraction, especially multi-teeth extraction as risk factors (P < 0.0125). Our study demonstrated that maxillary lesion was associated with an advanced stage and it was inclined to worse prognoses. We also found MRONJ had little correlation to Actinomyces infection. Surgical treatment could improve patients' condition successfully (P > 0.05). 81.3% patients with advanced stage showed complete or partial healing lesions after surgery. Conclusion Advanced age, maxilla lesion, diabetes mellitus, tooth extraction seem to be important triggering factors for MRONJ. Clinicians and surgeons should pay attention to maxillary lesions as it is related to severe symptoms and unfavorable prognosis. Once diagnosed as MRONJ, surgery is an effective treatment for patients with advanced stage.
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Affiliation(s)
- Qizhang Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Jiyuan Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Shuqun Qi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Xuejuan Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Dazhong Liu
- Xindu District Peoples Hospital of Chengdu, Sichuan Province, China
| | - Jian Pan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
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Schiodt M, Vadhan-Raj S, Chambers MS, Nicolatou-Galitis O, Politis C, Coropciuc R, Fedele S, Jandial D, Zhang J, Ma H, Saunders DP. A multicenter case registry study on medication-related osteonecrosis of the jaw in patients with advanced cancer. Support Care Cancer 2017; 26:1905-1915. [PMID: 29275525 PMCID: PMC5919994 DOI: 10.1007/s00520-017-4003-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 12/03/2017] [Indexed: 11/28/2022]
Abstract
Purpose This observational case registry study was designed to describe the natural history of cancer patients with medication-related osteonecrosis of the jaw (ONJ) and evaluate the ONJ resolution rate. Methods Adults with a diagnosis of cancer and with a new diagnosis of ONJ were enrolled and evaluated by a dental specialist at baseline and every 3 months for 2 years and then every 6 months for 3 years until death, consent withdrawal, or loss to follow-up. The primary endpoint was the rate and time course of ONJ resolution. Secondary endpoints included frequency of incident ONJ risk factors, ONJ treatment patterns, and treatment patterns of antiresorptive agents for subsequent ONJ. Results Overall, 327 patients were enrolled; 207 (63%) were continuing on study at data cutoff. Up to 69% of evaluable patients with ONJ had resolution or improvement during the study. ONJ resolution (AAOMS ONJ staging criteria) was observed in 114 patients (35%); median (interquartile range) time from ONJ onset to resolution was 7.3 (4.5–11.4) months. Most patients (97%) had received antiresorptive medication before ONJ development, 9 patients (3%) had not; 68% had received zoledronic acid, 38% had received denosumab, and 10% had received pamidronate (56% had received bisphosphonates only, 18% had received denosumab only, and 21% had exposure to both). Conclusions These results are consistent with those observed in clinical trials evaluating skeletal-related events in patients with advanced malignancy involving bone. Longer follow-up will provide further information on ONJ recurrence and resolution rates between medically and surgically managed patients.
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Affiliation(s)
- Morten Schiodt
- Department of Oral and Maxillofacial Surgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | | | | | - Constantinus Politis
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Ruxandra Coropciuc
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Stefano Fedele
- University College of London Eastman Dental Institute and National Institutes for Research Health, University College of London Hospitals Biomedical Research Center, London, UK
| | | | | | | | - Deborah P Saunders
- Department of Dental Oncology, Health Sciences North, Northeast Cancer Centre, Northern Ontario School of Medicine, 41 Ramsey Lake Road, Sudbury, ON, P3E 5J1, Canada.
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What is the effect of anti-resorptive drugs (ARDs) on the development of medication-related osteonecrosis of the jaw (MRONJ) in osteoporosis patients: A systematic review. J Craniomaxillofac Surg 2017; 45:1493-1502. [DOI: 10.1016/j.jcms.2017.05.028] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 05/03/2017] [Accepted: 05/29/2017] [Indexed: 01/12/2023] Open
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Cano-Durán JA, Peña-Cardelles JF, Ortega-Concepción D, Paredes-Rodríguez VM, García-Riart M, López-Quiles J. The role of Leucocyte-rich and platelet-rich fibrin (L-PRF) in the treatment of the medication-related osteonecrosis of the jaws (MRONJ). J Clin Exp Dent 2017; 9:e1051-e1059. [PMID: 28936298 PMCID: PMC5601107 DOI: 10.4317/jced.54154] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 06/28/2017] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND For the treatment of the bisphosphonates and other drugs related osteonecrosis of the jaws, currently medication-related osteonecrosis of the jaws (MRONJ), have been established different conservative therapeutic approaches, avoiding surgery except in cases of extreme need. Given the controversy and lack of current consensus regarding MRONJ therapy in patients, new techniques have been developed among which the use of fibrin membranes rich in platelets and leukocytes (L-PRF). The objective of this review is to evaluate whether L-PRF treatment is really effective, as well as the results that can be achieved by this therapeutic alternative. MATERIAL AND METHODS A review of the literature in the PubMed/Medline database of all those studies using L-PRF in the treatment of osteonecrosis using the keywords "Osteonecrosis", "Jaws", "L-PRF" and " Leucocyte-rich platelet-rich fibrin ". RESULTS The use of L-PRF for the treatment of MRONJ is really effective, especially when it is performed with a simultaneous application of L-PRF and morphogenetic protein-2 (BMP-2), even in patients submitted for long periods of time to therapy with intravenous bisphosphonates. However, success will depend on several factors such as the previous existence of infection or the clinical stage in which the patient is. CONCLUSIONS The current literature demonstrates the effectiveness of the use of L-PRF in osteonecrosis, and it can be considered as a real alternative in the treatment of this entity. However, more clinical studies are needed to really assess this new therapy. Key words:Osteonecrosis, Jaws, L-PRF, Leucocyte-rich platelet-rich fibrin.
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Affiliation(s)
- Jorge A Cano-Durán
- Department of Oral Medicine and Surgery, School of Dentistry, Complutense University, Madrid, Spain
| | | | - Daniel Ortega-Concepción
- Department of Oral Medicine and Surgery, School of Dentistry, Complutense University, Madrid, Spain
| | | | - Mariano García-Riart
- Department of Oral Medicine and Surgery, School of Dentistry, Complutense University, Madrid, Spain
| | - Juan López-Quiles
- Department of Oral Medicine and Surgery, School of Dentistry, Complutense University, Madrid, Spain
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Intravenous bisphosphonate therapy does not thicken cementum or change periodontal ligaments of cancer patients. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 123:591-599. [PMID: 28407986 DOI: 10.1016/j.oooo.2017.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/28/2016] [Accepted: 02/06/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To test the hypothesis that intravenous (IV) bisphosphonate (BP) therapy thickens or alters the micromorphology of cementum and periodontal ligament (PDL) in cancer patients. STUDY DESIGN Thirty-two teeth extracted from 24 cancer patients and separated into test (patients who have undergone IV BP therapy, n = 16) and control (patients naive to BP therapy, n = 16) groups were studied. Cementum thickness was measured in 3 different areas of the dental root with polarized light microscopy. PDL was assessed by optical light microscopy and the immunohistochemical expression of periostin. RESULTS No significant difference was detected in cementum thickness (apical, P = .06; medium, P = .16; cervical, P = .18) between groups. The numbers of fibroblasts in PDL (P = .56), incremental lines of cementum (P = .51) and the immunohistochemical patterns of periostin expression in PDL (P = .68) did not differ between groups. CONCLUSION IV BP therapy does not thicken cementum or change the micromorphology of PDL.
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Koth VS, Figueiredo MA, Salum FG, Cherubini K. Interrelationship of clinical, radiographic and haematological features in patients under bisphosphonate therapy. Dentomaxillofac Radiol 2017; 46:20160260. [PMID: 28107028 DOI: 10.1259/dmfr.20160260] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To analyze the clinical, radiographic and haematological aspects of patients under bisphosphonate therapy. METHODS A retrospective study was conducted where the records of patients taking bisphosphonates were analyzed considering the occurrence of bisphosphonate-related osteonecrosis of the jaw (BRONJ). Evaluation included panoramic and periapical radiographies, haematological examinations and clinical features. Radiographies were analyzed determining the presence or absence of bone sclerosis, osteolysis, persisting alveolar socket, narrowing of the mandibular canal, widening of the periodontal ligament space, periradicular radiolucency, sequestrum and thickening of the lamina dura. Laboratory tests consisted of complete blood count, fasting serum glucose, erythrocyte sedimentation rate (ESR) and serum levels of calcium, phosphorus, alkaline phosphatase, parathormone (PTH) and C-terminal telopeptide of collagen I (CTX). RESULTS Alkaline phosphatase and ESR were significantly higher in the BRONJ group, whereas fasting serum glucose, CTX, PTH, calcium and phosphorus did not significantly differ. BRONJ showed association with smoking, tooth extraction, anaemia and leukocytosis. On radiographic analysis, persisting alveolar socket, osteolysis, bone sclerosis and narrowing of the mandibular canal were significantly more prevalent in the BRONJ group. Thickening of the lamina dura, periapical radiolucencies, widening of the periodontal ligament space and sequestrum did not significantly differ between the groups. CONCLUSIONS BRONJ is a multifactorial disease with high morbidity, which requires experimental studies to clarify the role of the reported risk factors and clinical radiographic signs to improve its diagnosis.
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Affiliation(s)
- Valesca S Koth
- Dental College, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria A Figueiredo
- Dental College, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda G Salum
- Dental College, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Karen Cherubini
- Dental College, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
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Jian P, Qizhang W, Jiyuan L. [Research progress on bisphosphonate-related osteonecrosis of the jaws]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2017; 35:29-36. [PMID: 28326724 PMCID: PMC7030198 DOI: 10.7518/hxkq.2017.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/13/2016] [Indexed: 02/05/2023]
Abstract
Bisphosphonates (BPs), as potent drugs inhibiting bone resorption, have been widely used for treatment of several diseases. In recent years, dentists and oral and maxillofacial surgeons reported continuously increasing cases of bisphosphonate-related osteonecrosis of the jaws (BRONJ). This disease is clinically characterized by exposed bones, formation of sequestrum, pain, and halitosis. Provided that pathogenesis of BRONJ is unclear, effective treatments for this disease are currently unavailable. Thus, prevention plays an important role in the management of BRONJ. This review summarizes research progress on pathogenesis, risk factors, clinical characteristics, treatment, and prevention of this condition.
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Affiliation(s)
- Pan Jian
- State Key Laboratory of Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wang Qizhang
- State Key Laboratory of Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Liu Jiyuan
- State Key Laboratory of Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Abstract
The use of bisphosphonates in treatment of osteoporosis declined significantly over the past decade. There is currently great concern, among patients and physicians, about two potential skeletal adverse effects associated with bisphosphonates- jaw osteonecrosis and atypical femur fractures. This has become a major public health issue since untreated osteoporosis carries a significant burden in terms of fracture-related morbidity and mortality, and bisphosphonates, considered first-line therapy for osteoporosis, have established efficacy in fracture and mortality reduction. Areas covered: In this review we discuss current literature on osteonecrosis of the jaw and atypical femur fractures in patients with osteoporosis treated with bisphosphonates, including case definition, pathogenesis, epidemiology, risk factors, clinical presentation, management and prevention. We conducted a literature search using PubMed and PubMed Central, using the search terms 'bisphosphonates', 'osteonecrosis of the jaw', and 'atypical fractures'. We selected relevant articles including meta-analyses, clinical trials, observational studies, and major society guidelines published between 2010 and 2016, to be included in this review. A few articles published prior to 2010 were also included as references. Expert commentary: The rare skeletal side effects of bisphosphonates should not preclude their use in patients with osteoporosis and high fracture risk, as benefits significantly outweigh the risks.
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Affiliation(s)
- Zeina A Habib
- a Department of Internal Medicine, Division of Endocrinology , Central Michigan University Medical Education Partners
- b Central Michigan University College of Medicine , Saginaw , MI , USA
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Zandi M, Dehghan A, Janbaz P, Malekzadeh H, Amini P. The starting point for bisphosphonate-related osteonecrosis of the jaw: Alveolar bone or oral mucosa? A randomized, controlled experimental study. J Craniomaxillofac Surg 2016; 45:157-161. [PMID: 27919595 DOI: 10.1016/j.jcms.2016.10.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 09/20/2016] [Accepted: 10/25/2016] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Although over a decade has passed since first introduction of BRONJ, the exact pathophysiology of this disease is still unclear. The present experimental study aimed to determine whether the oral mucosa or alveolar bone serves as the starting point for BRONJ development. SUBJECTS AND METHODS Sixty male Wistar rats were randomly assigned into study and control groups (each, n = 30), and received intraperitoneal injection of 0.06 mg/kg zoledronate and saline, respectively, once a week for 12 weeks. At the end of the week 4 of the experiment, all 60 rats underwent unilateral mandibular first molar extraction. A 4 mm defect was made in the contralateral canine alveolar mucosa. At the end of the experiment, rats were sacrificed, and the three areas of interest including extraction, soft tissue defect, and the non-intervention (canine area on the same side of extraction) sites were assessed clinically for presence of bone exposure/fistula, and histologically for status of bone remodeling (only at extraction site) and osteonecrosis. RESULTS In the study group, the frequency of bone exposure/fistula was 80%, 0%, and 0%; and the rate of histological bone necrosis was 83.3%, 20%, and 0%; at the extraction, soft tissue defect, and non-intervention sites, respectively. No clinical and histological sign of bone necrosis was found in the control group. Normal bone remodeling was observed in 0% and 100% of the extraction sockets in the study and control groups, respectively. CONCLUSION Injury to alveolar bone was a stronger trigger for BRONJ development compared to oral mucosal damages.
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Affiliation(s)
- Mohammad Zandi
- Department of Oral and Maxillofacial Surgery, Hamadan University of Medical Sciences, Hamadan, Iran; Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Arash Dehghan
- Department of Pathology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Pejman Janbaz
- Department of Oral and Maxillofacial Surgery, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Hamid Malekzadeh
- Department of Oral and Maxillofacial Surgery, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Payam Amini
- Department of Biostatistics, Hamadan University of Medical Sciences, Hamadan, Iran
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Lang M, Zhou Z, Shi L, Niu J, Xu S, Lin W, Chen Z, Wang Y. Influence of zoledronic acid on proliferation, migration, and apoptosis of vascular endothelial cells. Br J Oral Maxillofac Surg 2016; 54:889-893. [DOI: 10.1016/j.bjoms.2016.05.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 05/29/2016] [Indexed: 11/30/2022]
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Taniguchi T, Ariji Y, Nozawa M, Naitoh M, Kuroiwa Y, Kurita K, Ariji E. Computed tomographic assessment of early changes of the mandible in bisphosphonate-treated patients. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:362-72. [PMID: 27544397 DOI: 10.1016/j.oooo.2016.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 06/04/2016] [Accepted: 06/08/2016] [Indexed: 01/09/2023]
Abstract
OBJECTIVES To compare the computed tomography (CT) features of mandibular cancellous and cortical bones between patients with bisphosphonate (BP) administration and those without and to assess the early changes of the mandible in BP-treated patients. STUDY DESIGN Twenty-four BP-treated patients suffering from medication-related osteonecrosis of the jaw (MRONJ) were enrolled in this study. For comparison, 20 patients suffering from osteomyelitis and 20 patients without pathology in the jaw were also enrolled, all of whom did not receive BP treatment. The CT values of the cancellous and cortical bone and the cortical bone widths were measured. RESULTS In the MRONJ and osteomyelitis groups, there were significant differences in the CT values of cancellous and cortical bones between the affected and unaffected areas. In patients with stage 0 MRONJ, a significant difference was noted in the cancellous bone CT values between these areas. The cancellous bone CT values at the affected and unaffected areas in the BP-treated group were significantly higher than in the control groups. In patients with stage 0 MRONJ, the cancellous bone CT values at the affected area were also significantly higher than in the healthy patients. The cortical bone widths in the unaffected areas in the BP-treated patients were significantly larger than in healthy patients. CONCLUSIONS The cancellous bone CT values were higher in the BP-treated group, including in patients with stage 0 MRONJ, and CT may provide useful quantitative information.
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Affiliation(s)
- Tohru Taniguchi
- Postgraduate Student, Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Yoshiko Ariji
- Associate Professor, Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.
| | - Michihito Nozawa
- Postgraduate Student, Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Munetaka Naitoh
- Associate Professor, Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Yuichiro Kuroiwa
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Kenichi Kurita
- Professor and Chairman, Department of Oral and Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Eiichiro Ariji
- Professor and Chairman, Department of Oral and Maxillofacial Radiology, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
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Gavaldá C, Bagán JV. Concept, diagnosis and classification of bisphosphonate-associated osteonecrosis of the jaws. A review of the literature. Med Oral Patol Oral Cir Bucal 2016; 21:e260-70. [PMID: 26827066 PMCID: PMC4867198 DOI: 10.4317/medoral.21001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 12/13/2015] [Indexed: 11/29/2022] Open
Abstract
Background Bisphosphonates (BPs) and other antiresorptive agents such as denosumab are widely prescribed for the treatment of osteoporosis and are also used in patients with multiple myeloma and metastatic breast or prostate cancer for avoiding bone reabsorption and fractures that result in increased morbidity-mortality among such individuals. Material and Methods We made a bibliographic search to analyze the concept, diagnosis and the different classifications for bisphosphonate-associated osteonecrosis of the jaws. Results Osteonecrosis of the jaws (ONJ) is an important complication of exposure to BPs or other antiresorptive agents, and although its prevalence is low, it can pose management problems. The definition, diagnosis and classification of osteonecrosis have evolved since Marx reported the first cases in 2003. Conclusions The present study offers a literature review and update on the existing diagnostic methods and classification of the disorder, with a view to facilitating earlier and more effective treatment. Key words:Osteonecrosis, jaws, bisphosphonates.
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Affiliation(s)
- C Gavaldá
- Departamento de Medicina Oral, Clínica Odontológica, c/ Gascó Oliag, 1, 46010 Valencia, Spain,
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22
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The effect of bisphosphonates on the endothelial differentiation of mesenchymal stem cells. Sci Rep 2016; 6:20580. [PMID: 26857282 PMCID: PMC4746673 DOI: 10.1038/srep20580] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/06/2016] [Indexed: 12/18/2022] Open
Abstract
The contribution of the local stem cell niche to providing an adequate vascular framework during healing cannot be overemphasized. Bisphosphonates (BPs) are known to have a direct effect on the local vasculature, but their effect on progenitor cell differentiation is unknown. This in vitro study evaluated the effect(s) of various BPs on the differentiation of human placental mesenchymal stem cells (pMSCs) along the endothelial lineage and their subsequent functional and morphogenic capabilities. pMSC multipotency was confirmed by successful differentiation into cells of both the osteogenic and endothelial lineages, as demonstrated by positive Alizarin Red S staining and Ac-LDL uptake. pMSC differentiation in the presence of non-cytotoxic BP concentrations showed that nitrogen containing BPs had a significant inhibitory effect on cell migration and endothelial marker gene expression, as well as compromised endothelial differentiation as demonstrated using von Willebrand factor immunofluorescence staining and tube formation assay. This in vitro study demonstrated that at non-cytotoxic levels, nitrogen-containing BPs inhibit differentiation of pMSCs into cells of an endothelial lineage and affect the downstream functional capability of these cells supporting a multi-modal effect of BPs on angiogenesis as pathogenic mechanism contributing to bone healing disorders such as bisphosphonate related osteonecrosis of the jaws (BRONJ).
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Zandi M, Dehghan A, Malekzadeh H, Janbaz P, Ghadermazi K, Amini P. Introducing a protocol to create bisphosphonate-related osteonecrosis of the jaw in rat animal model. J Craniomaxillofac Surg 2015; 44:271-8. [PMID: 26805920 DOI: 10.1016/j.jcms.2015.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 11/22/2015] [Accepted: 12/23/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Previously published animal investigations on bisphosphonate-related osteonecrosis of the jaws (BRONJ) showed a variety of methods for BRONJ induction and inconsistent findings. The aim of present study was to develop a reliable protocol for BRONJ induction in rat animal model. SUBJECTS AND METHODS In a pilot study, 64 rats were randomly divided into 4 groups and 16 subgroups (each containing 2 experimental and 2 control rats) based on the timing of tooth extraction and euthanasia. The experimental and control rats received intraperitoneal injection of 0.06 mg/kg zoledronate and saline, respectively, once a week until sacrificed, and evaluated for presence of bone exposure clinically, and osteonecrosis and new bone formation histologically. The protocol that successfully produced BRONJ in pilot study was tested in a randomized controlled experimental investigation using 45 rats. RESULTS In pilot investigation, the highest rate of BRONJ was obtained after four weekly zoledronate injections, at least 4 weeks after tooth extraction. The randomized controlled experimental study verified this finding with a success rate of 83%, and also showed that more prolongation of zoledronate therapy did not increase the BRONJ rate. CONCLUSION The protocol developed in the present study could be used reliably for future BRONJ investigations on rats.
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Affiliation(s)
- Mohammad Zandi
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran; Dental Research Center, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Arash Dehghan
- Department of Pathology, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Hamid Malekzadeh
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran.
| | - Pejman Janbaz
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Khaled Ghadermazi
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Payam Amini
- Department of Biostatistics, Hamedan University of Medical Sciences, Hamedan, Iran
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Valenzuela L, Alonso-Bouzón C, Mañas LR. Bisphosphonate-Related Osteonecrosis of the Jaw in an 80-Year-Old Woman with Diabetes Mellitus: Case Report. J Am Geriatr Soc 2015; 63:2221-2. [PMID: 26481002 DOI: 10.1111/jgs.13689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zandi M, Dehghan A, Ghadermazi K, Malekzadeh H, Akbarzadeh M. Perioperative discontinuation of intravenous bisphosphonate therapy reduces the incidence and severity of bisphosphonate-related osteonecrosis of the jaw: A randomized, controlled, prospective experimental study in rats. J Craniomaxillofac Surg 2015; 43:1823-8. [PMID: 26355024 DOI: 10.1016/j.jcms.2015.08.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/08/2015] [Accepted: 08/12/2015] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To evaluate the effects of intravenous bisphosphonate discontinuation on incidence and severity of bisphosphonate-related osteonecrosis of the jaw (BRONJ). MATERIAL AND METHODS Seventy rats were randomly divided into 7 groups. In control and S0 groups, weekly injection of saline and 0.06 mg/kg zoledronate (respectively) for 4 weeks, tooth extraction, continuation of injections for 2 months and euthanasia were performed. In group S1, zolendronate injection for 4 weeks, tooth extraction, zolendronate discontinuation for 2 months, and euthanasia were done. For groups S2, S3, S4, and S5, zolendronate injections for 4 weeks, drug holiday for 1-4 months (respectively) before and 2 months after tooth extraction, and euthanasia were performed. Presence of bone exposure, osteonecrosis, and new bone formation were clinically and histologically evaluated. RESULTS The rate of BRONJ in control, S0, S1, S2, S3, S4, and S5 groups was 0%, 85%, 80%, 65%, 60%, 50%, and 40%, respectively. In control group, epithelial healing, bone formation, and absence of osteonecrosis; and in S0 group, unhealed epithelium, osteonecrosis, and impaired bone formation were histologically observed. In study groups, prolongation of drug holiday caused diminished osteonecrosis, and improved bone and epithelial healing. CONCLUSION Zolendronate discontinuation significantly decreased the incidence and severity of BRONJ in rats.
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Affiliation(s)
- Mohammad Zandi
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran; Dental Research Center, Hamedan University of Medical Sciences, Hamedan, Iran.
| | - Arash Dehghan
- Department of Pathology, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Khaled Ghadermazi
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Hamid Malekzadeh
- Department of Oral and Maxillofacial Surgery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Mahdi Akbarzadeh
- Department of Biostatistics and Epidemiology, Hamedan University of Medical Sciences, Hamedan, Iran
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Treatment strategies and outcomes of bisphosphonate-related osteonecrosis of the jaw (BRONJ) with characterization of patients: a systematic review. Int J Oral Maxillofac Surg 2015; 44:568-85. [DOI: 10.1016/j.ijom.2015.01.026] [Citation(s) in RCA: 201] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/28/2015] [Accepted: 01/30/2015] [Indexed: 11/22/2022]
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Cheong S, Sun S, Kang B, Bezouglaia O, Elashoff D, McKenna CE, Aghaloo TL, Tetradis S. Bisphosphonate uptake in areas of tooth extraction or periapical disease. J Oral Maxillofac Surg 2014; 72:2461-8. [PMID: 25262401 DOI: 10.1016/j.joms.2014.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/24/2014] [Accepted: 07/02/2014] [Indexed: 11/30/2022]
Abstract
PURPOSE Bisphosphonates (BPs) are widely used for the management of bone diseases such as osteoporosis and bone malignancy. However, osteonecrosis of the jaws (ONJ) is a serious complication of BP treatment. ONJ lesions mainly occur after extraction of teeth deemed unrestorable or around teeth with active periodontal or periapical disease. Because socket healing or dental disease shows higher bone turnover, the authors hypothesized that preferentially high BP accumulation would be observed in these areas. MATERIALS AND METHODS The authors tested the uptake of fluorescein-labeled zoledronic acid (5-FAM-ZOL) in sites of tooth extraction or experimental periapical disease in mice. Maxillary molars were extracted or the crowns of mandibular molars were drilled to induce pulp exposure. Animals were injected with 5-FAM-ZOL 200 μg/kg at various times after intervention and fluorescence was measured at healthy versus intervention sites. Fluorescein injections were used as controls. Data were analyzed by t test and mixed effects linear models were constructed because the animals had repeated measurements over time and at the 2 sites. RESULTS A statistically significant (P≤.001 to .002) time-dependent uptake of 5-FAM-ZOL was detected in the areas of extraction socket and in the alveolar ridge around teeth with periapical disease compared with the healthy contralateral sites of the same animals. For the 2 conditions, the uptake reached a maximum 3 days after experimental intervention and decreased thereafter. CONCLUSIONS These data suggest that sites with increased bone turnover, such as extraction sites or areas of periapical inflammation, are exposed to higher BP doses than the remaining alveolar ridge and could explain, at least in part, the susceptibility of such areas to ONJ.
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Affiliation(s)
- Simon Cheong
- Dental Student, University of Southern California, Herman Ostrow School of Dentistry, Los Angeles, CA
| | - Shuting Sun
- Research Associate, Department of Chemistry, University of Southern California, Los Angeles, CA
| | - Benjamin Kang
- Dental Student, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Olga Bezouglaia
- Research Associate, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - David Elashoff
- Professor, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Charles E McKenna
- Professor, Department of Chemistry, University of Southern California, Los Angeles, CA
| | - Tara L Aghaloo
- Associate Professor, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - Sotirios Tetradis
- Professor, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles; Molecular Biology Institute, UCLA, Los Angeles, CA.
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Tooth alterations in areas of bisphosphonate-induced osteonecrosis. Clin Oral Investig 2014; 19:489-95. [PMID: 24948337 DOI: 10.1007/s00784-014-1270-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 06/09/2014] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Osteonecrosis of the jaw is a potential side effect when using bisphosphonates. Most studies on the effects of bisphosphonates on teeth have been conducted in vitro or in animal models of tooth development. Therefore, the aim of this study was to describe alterations found in human teeth extracted from areas of bisphosphonate-induced osteonecrosis. MATERIALS AND METHODS Using a retrospective study design, 16 teeth from 13 patients were extracted from areas of bisphosphonate-induced osteonecrosis during surgical debridement. The specimens were decalcified and embedded in paraffin. A series of 5-μm sections were prepared, stained with hematoxylin and eosin (H&E) and observed under a light microscope. RESULTS The majority of the patients were female (53.85 %), with a mean age of 60.23 ± 13.18 years. Zoledronate (IV) was the most common bisphosphonate used (92.3 %), over a mean period of 2 years. The commonest alteration observed was hypercementosis (87.5 %), followed by pulpar necrosis (81.25 %), pulp stones attached to the dentine and loose pulp stones in the pulp chamber and root canals in addition to linear calcifications (68.75 %), dentinoid/osteoid material formation (18.75 %), and dental ankylosis (6.25 %). CONCLUSIONS Patients undergoing bisphosphonate therapy present diverse tooth alterations, which should be closely monitored by clinicians to prevent complications. CLINICAL RELEVANCE It is paramount that the teeth involved in oral lesions are always examined. Attention should be drawn to the need to establish preventive measures, in terms of dental treatment, for patients prior to starting bisphosphonate therapy.
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Jones AC, Sedghizadeh PP. Bisphosphonate-related osteonecrosis of the jaws is caused by dental procedures that violate oral epithelium; this is no longer a mysterious disease. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 117:392-3. [DOI: 10.1016/j.oooo.2013.09.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 09/11/2013] [Indexed: 10/26/2022]
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Clinical Practice Statements and the American Academy of Oral Medicine. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 117:129-31. [DOI: 10.1016/j.oooo.2013.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 10/22/2013] [Indexed: 10/26/2022]
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Pichardo SEC, Richard van Merkesteyn JP. Bisphosphonate-related osteonecrosis of the jaws of dental origin. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 117:393. [PMID: 24440138 DOI: 10.1016/j.oooo.2013.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 10/05/2013] [Indexed: 11/20/2022]
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Oteri G, Bramanti E, Nigrone V, Cicciù M. Decayed, Missing, and Filled Teeth Index and Periodontal Health in Osteoporotic Patients Affected by BRONJ: An Observational Study. J Osteoporos 2013; 2013:231289. [PMID: 24455411 PMCID: PMC3876686 DOI: 10.1155/2013/231289] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 11/06/2013] [Accepted: 11/07/2013] [Indexed: 11/28/2022] Open
Abstract
The aim of this paper is to describe the incidence of decayed, missing, and filled teeth (DMFT) and periodontal disease in 32 osteoporotic patients affected by bisphosphonate-related osteonecrosis of the jaw (BRONJ). Moreover, an investigation between the obtained data and 20 patients treated with bisphosphonate drugs and with no evidence of ONJ has been performed. Osteonecrosis of the jaws is a rare complication in a subset of patients receiving bisphosphonate drugs. Based on a growing number of case reports and institutional reviews, this kind of therapy can cause exposed and necrotic bone specifically in the jawbones. From April 2009 to June 2012, 32 osteoporotic patients treated with oral or intravenous (I.V.) bisphosphonates have been recorded. The patients' oral health has been compared with 20 bisphosphonates patients with no ONJ. The incidence of decayed, missing, and filled teeth (DMFT) and periodontal disease was recorded in all patients and student's t-test was applied for comparing the two investigated groups data. Data demonstrated how the poor dental hygiene and periodontal disease of the BRONJ patients' are connected with the occurrence of jawbone necrosis.
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Affiliation(s)
- Giacomo Oteri
- Department of Biomedical Sciences and Specialist Medical-Surgical Dentistry, University of Messina, Via Consolare Valeria, 98100 Messina, Italy
| | - Ennio Bramanti
- Department of Biomedical Sciences and Specialist Medical-Surgical Dentistry, University of Messina, Via Consolare Valeria, 98100 Messina, Italy
| | - Valentina Nigrone
- Department of Biomedical Sciences and Specialist Medical-Surgical Dentistry, University of Messina, Via Consolare Valeria, 98100 Messina, Italy
| | - Marco Cicciù
- Human Pathology Department, Dental School, University of Messina, Via Consolare Valeria, 98100 Messina, Italy
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