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14 papers 25 to 100 followers
Salvatore L Ruggiero, Nina Kohn
PURPOSE: The treatment of patients with medication-related osteonecrosis of the jaw (MRONJ) is challenging. The purpose of the present study was to estimate the frequency and identify the factors associated with clinical improvement during treatment. PATIENTS AND METHODS: We designed and implemented a retrospective cohort study and enrolled a sample of subjects diagnosed with MRONJ between 2004 and 2015. The primary predictor variables were a set of heterogeneous variables grouped into the following categories: demographic (age and gender) and clinical (location of necrosis, therapy duration, medication type, disease stage, and treatment type)...
December 2015: Journal of Oral and Maxillofacial Surgery
P L Fung, P Nicoletti, Y Shen, S Porter, S Fedele
Osteonecrosis of the jaws (ONJ) is a potentially severe disorder that develops in a subgroup of individuals who have used bisphosphonate (BP) medications. Several clinical risk factors have been associated with the risk of ONJ development, but evidence is limited and in most instances ONJ remains an unpredictable adverse drug reaction. Interindividual genetic variability can contribute to explaining ONJ development in a subset of BP users and the discovery of relevant associated gene variants could lead to the identification of individuals at higher risk...
November 2015: Oral and Maxillofacial Surgery Clinics of North America
Temitope T Omolehinwa, Sunday O Akintoye
Osteonecrosis of the jaw is a major public health concern throughout the world. Use of radiotherapy for head and neck cancer and bone antiresorptives and antiangiogenic agents have increased its incidence. Medication-related osteonecrosis of the jaw is more common relative to other types of osteonecrosis. Osteoradionecrosis occurs despite better treatment planning and shielding to minimize collateral damage to bone. Other related necrotic lesions are secondary to usage of recreational drugs and steroids. This article provides comprehensive information about these different types of bone necrosis; provides the readers with radiographic diagnostic criteria and updates on current theories on pathophysiology of osteonecrosis...
January 2016: Dental Clinics of North America
Robert E Marx
While the AIDS epidemic of the 1980s taught the medical and dental professions much about immune cells and the immune system's cellular relationships, the bisphosphonate-induced osteonecrosis epidemic of the past decade has taught these same professions much about bone turnover, bone cell cross talk, the response and functional relationship of bone cells to loading, and drug effects on cellular dynamic relationships. The present article explores the literature as well as both evidence- and experience-based data to discuss known bone pathologies and physiologic mechanisms as well as uncover new findings: (1) bone remodeling is the mechanism by which bone adapts to loading stresses, termed either bone modeling or Wolff's law, and it is also the mechanism for bone renewal; (2) osteoclastic bone resorption triggers bone renewal at a rate of about 0...
March 2014: International Journal of Oral & Maxillofacial Implants
Paolo Vescovi, Elisabetta Merigo, Marco Meleti, Maddalena Manfredi, Carlo Fornaini, Samir Nammour, Giovanni Mergoni, Amin Sarraj, Jose V Bagan
Purpose. To report the efficacy of conservative surgical treatment for stage I bisphosphonate-related osteonecrosis of the jaw (BRONJ). Materials and Methods. This study reports the clinical outcomes of 63 patients treated for BRONJ stage I (according to Ruggiero's staging system) at the Oral Pathology and Laser-Assisted Surgery Unit of the University of Parma between January 2004 and January 2011. Surgical interventions were performed, under local analgesia, in patients unresponsive for a period of six months to noninvasive treatments such as cycles of local or systemic antibacterial therapy combined or not to low level laser therapy, ozone therapy, or Hyperbaric Oxygen Therapy...
2014: International Journal of Dentistry
Eric R Carlson
No abstract text is available yet for this article.
April 2014: Journal of Oral and Maxillofacial Surgery
Douglas D Damm, David M Jones
In 2011, the American Dental Association Council on Scientific Affairs released an update by their expert panel on managing the care of patients receiving antiresorptive therapy for the prevention and treatment of osteoporosis. In this report, the panel found no study results that confirmed the effectiveness of drug holidays to prevent antiresorptive agent-induced osteonecrosis of the jaws without increasing the risks of low bone mass. The purpose of this article is to provide suggestions for a pattern of patient care for individuals who desire or require an invasive surgical procedure of the jaws, but who also have a skeleton that is at risk for osteoporotic fracture...
August 2013: General Dentistry
Hadil Al Hadi, Gary R Smerdon, Simon W Fox
The cellular and molecular mechanism through which hyperbaric oxygen therapy (HBO) improves osteonecrosis (ON) is unclear. The present study therefore examined the effect of HBO, pressure and hyperoxia on RANKL-induced osteoclast formation in RAW 264.7 cells and human peripheral blood monocytes (PBMC). Daily exposure to HBO (2.4 ATA, 97% O2 , 90 min), hyperbaric pressure (2.4 ATA, 8.8% O2 , 90 min) or normobaric hyperoxia (1 ATA, 95% O2 , 90 min) significantly decreased RANKL-induced osteoclast formation and bone resorption in normoxic conditions...
November 2013: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
John J Freiberger, Rebecca Padilla-Burgos, Thomas McGraw, Hagir B Suliman, Kevin H Kraft, Bryant W Stolp, Richard E Moon, Claude A Piantadosi
PURPOSE: This study tested hyperbaric oxygen (HBO) as an adjunct to surgery and antibiotics in the treatment of bisphosphonate-related osteonecrosis of the jaw (ONJ) and evaluated its effects on gingival healing, pain, and quality of life. MATERIALS AND METHODS: The investigators implemented a randomized controlled trial and enrolled a sample composed of patients with ONJ, where the predictor variable was HBO administered at 2 atm twice a day for 40 treatments as an adjunct to conventional therapy of surgery and antibiotics versus conventional therapy alone...
July 2012: Journal of Oral and Maxillofacial Surgery
Fernando Antonini, Cassiano Costa Silva Pereira, Eduardo Varela Parente, Fabiano Goulart Azambuja
Bisphosphonates are compounds used in the treatment of various metabolic and malignant bone diseases. The relation between the use of bisphosphonates and ostenonecrosis of the jaws as an adverse effect of the drug has been intensely discussed during the last few years, and up to this moment, there is no consensus concerning an ideal treatment modality for this condition. Nevertheless, there is an agreement among researchers that the standard goal for controlling jaw osteonecrosis is to prevent it. Otherwise, the rationale for a randomized controlled trial is that current treatment has proven to be suboptimal, and no consensus has been reached yet on the best strategies to repair the exposed bone once bone necrosis is developed...
November 2010: Journal of Craniofacial Surgery
Chang-Ta Chiu, Wei-Fan Chiang, Ching-Ya Chuang, Sung-Wen Chang
PURPOSE: To offer recommendations of risk factors, prevention, and treatment of oral bisphosphonate and steroid-related osteonecrosis of the jaw (BSRONJ) in Taiwan. MATERIALS AND METHODS: Twelve patients were clinicopathologically proved to have bisphosphonate-related osteonecrosis of the jaw (BRONJ). All of the patients were taking oral bisphosphonates and were concurrently administered long-term steroids. Of the 12 patients, 3 patients were assigned to the first stage of BRONJ; 5 patients were assigned to the second stage, and 4 patients were assigned to the third stage...
May 2010: Journal of Oral and Maxillofacial Surgery
Mustafa Erkan, Oğuz Bilgi, Mesut Mutluoğlu, Günalp Uzun
No abstract text is available yet for this article.
2009: JOP: Journal of the Pancreas
John J Freiberger
Bisphosphonates suppress bone turnover by disrupting osteoclast signal transduction, maturation, and longevity. In some patients, it has been hypothesized that suppressed turnover can impair oral wound healing, leading to a distressing, osteopetrosis-like jaw necrosis called bisphosphonate-related osteonecrosis of the jaws (BRONJ). Hyperbaric oxygen (HBO), as an adjunct to surgery and antibiotics, might have utility in the treatment of BRONJ because it produces reactive oxygen and nitrogen species that positively modulate the redox-sensitive intracellular signaling molecules involved in bone turnover...
May 2009: Journal of Oral and Maxillofacial Surgery
P M Lambert, N Intriere, R Eichstaedt
No abstract text is available yet for this article.
March 1997: Journal of Oral and Maxillofacial Surgery
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