Yeah, denture tablets did a number on mine too. I thought I was being clever by using them daily, but my mouthguard looked cloudy and worn out way fas...

Totally agree on the boil-and-bite guards wearing out fast—I went through mine quicker than expected. Honestly, the custom guard felt awkward at first...

I learned the hard way about toothpaste abrasives too. Tried it once to buff out a scratch on my phone screen—seemed great at first, but after a while...