New toothpaste hack goes viral on TikTok – but dentists warn it's 'dangerous'
![New toothpaste hack goes viral on TikTok – but dentists warn it's 'dangerous'](https://i2-prod.walesonline.co.uk/news/health/article29689049.ece/ALTERNATES/s615/3_tiktok-toothpaste-hack.jpg)
Dentists warned against a viral 'toothpaste hack' that has been circulating on TikTok, which involves decanting toothpaste into a soap dispenser - but it could be doing more harm than good