i lost a front tooth playing summer hockey a few months back. i was very lucky for many reasons and didnt have to pay anything when all was said and done to have it fixed (i was in the final week of my mom's coverage plan, and my dentist is a boss ad had it fixed within 24 hours).
yet, now that it's been replaced, i know the true value of keeping my teeth intact. it would literally take two weeks worth of work on my part to pay for the replacement of just one tooth. i couldnt imagine losing a couple of teeth on a fall and not having coverage.
mouthguards cost about $20, look stupid, and are generally effective at preventing damage to the teeth, and even brain at times. and, well, i'm at the age where i don't give a fuck how i'm perceived, so mouthguard it is.