While there are safer ways (OsteoPlus) to combat or prevent osteoporosis, the medical establishment sticks to drugs. Among their most popular have been the biphosphenates (Fosamax© etc.)
Reports have come in about a serious jaw condition resulting from "biphos" use.
Here is one--"Biphosphenate-related osteonecrosis of the jaws is a complication which can occur in patients treated with 'biphos.' The pathogenisis is still poorly understood. Risk factors are invasive oral treatments with tooth extraction as a leading cause. Because of the complexity of the the treatment of osteonecrosis of the jaws, prevention is of the utmost importance..."
In: Ned Tijdschr Tandheelkd, April 2012. By: Dr. Van der Waal, VU medisch centrum in Amsterdam.