Bisphosphonates are a family of drugs used to prevent and treat osteoporosis, multiple myeloma, Paget's disease (bone cancers), and bone metastasis from other cancers. These drugs can bond to bone surfaces and prevent osteoclasts (cells that breakdown bone) from doing their job.
"Healthy bones constantly rebuild themselves," explains co-author of the report Sally-Jo Placa, DMD, MPA. "However, since the jawbones have rapid cell turnover, they can fail to heal properly in patients taking any of the bisphosphonate drugs. Patients need to be aware of the possibility of complications from dental surgery or extractions." Since these drugs linger in the bone indefinitely, they may upset the cell balance in how the jaws regenerate and remove unhealthy bone.
In their report, the authors refer to the case of a woman who received bisphosphonate therapy intravenously to treat metastatic breast cancer. She then developed osteonecrosis in her upper and lower jaws following tooth removal.
"This type of osteonecrosis has been occurring since the advent of these drugs," explains co-author Wellington S. Tsai, DMD. "At this time osteonecrosis as a result of bisphosphonate therapy has no treatment."
Patients who are taking bisphosphonates should inform their dentist to prevent complications from dental surgical procedures. "By informing your dentist that you are taking a bisphosphonate, different avenues for treatment can be explored," says the report's third co-author Kayvon Ha
Contact: Jaclyn Finneke
Academy of General Dentistry