Mary-- Your suggestion isn't all that off the wall. I remember that clenching and/or teeth grinding was a possible symptom of worms (don't know where I found this out, though) and that I treated my kids just because one was doing so much teeth grinding (didn't work--he's nearly 16 and still grinds 'em at night--we get reminded of this every summer when we have to sleep together in a small trailer<g>). Leslie Ayre-Jaschke, BEd, IBCLC Peace River Breastfeeding Clinic Peace River Alberta, Canada