DS has 7 teeth, 4 up top and 3 at the bottom. For the past week or so he has been grinding them CONSTANTLY. Is this bad? I know they do it to deal with the pain but all the time? We give him Brauers or Hylands and occasionally panadol and it seems to work but still with the grinding. I'm worried he's going to wear them down! He didn't get any teeth until 9.5 months and then got all these 7 in very quick succession. Is it just him discovering his new chompers or something worse?