ONJ has not been linked with the routine use of bisphosphonates taken by mouth as treatment for osteoporosis. Thus, people should still use oral bisphosphonates as prescribed. However, when possible, any necessary oral surgery should be done before use of bisphosphonates is begun.
Remove nozzle tips and screens, and clean them using a cleaning solution. Use a brush with plastic bristles to clean the nozzle tips. Rinse the cleaning solution off all parts with clean water. Many nozzle manufacturers have brushes designed specifically for cleaning out nozzles.
And then there is the image of the hose just running . . . as the car is washed. What you need is a hose nozzle that has a setting for a stream not a spray of water. A spray can damage the surface! And a toggle switch so you can shut off the water while you do the washing.