In the meantime, or if your grinding seems to be associated with periods of high stress or poor sleep, an over-the-counter mouth guard might help as a short-term solution (two weeks to a month).

The biggest stories of the day delivered to your inbox.

If there is enough blood, it may even block vision completely. With floaters, you may notice squiggly lines, simple specks, or cobwebs drifting across your visual field. These are caused by the jelly ...