My sister just had a denture made and it doesn't fit right and hurts her horribly. I want to avoid that future! She blames it on having genetically bad teeth, but I think it is her carby diet. I'm also using a water flosser right now and it does an amazing job of cleaning stuff that even brushing doesn't get rid of. I think my gums are much healthier now.

If your child is always stuffy, suspect something in their diet. Dairy and corn stuff me up like crazy. Dairy does a number on lots of people's sinuses and it is actually well known as a contributor to phlegm making, but it really does a number on my sinuses. Pretty sure that was why I had issues with chronic sinus infections for a long time.