I had no idea that there was a clinical term for this sort of procedure, but if someone were foolish enough to be involved in a motorcycle accident without wearing the correct protective clothing they might be the subject of a particularly unpleasant form of what I suppose would be called debriding.

Basically if the above incident occurs and you suffer a significant amount of gravel rash, then the only way that medical personnel can remove the hundreds of almost-microscopic bits of road now embedded in your flesh is as follows (those of a squeamish disposition may wish to look away now). The nurses basically wash the wound in a mixture of anaesthetic and disinfectant before using a stiff-bristled brush to scrub the grit and dirt from it. Very unpleasant, very painful, and one of the reasons why I would never ride my motorcycle wearing a t-shirt or short trousers.