My dentist told me I have BEAUTIFUL teeth, and she and the hygienist commented on my home care as ‘stellar’. (I admit – it had been 18 months since my last cleaning……) This comment from a dental office is a FIRST! And my gums are the healthiest they've been in years, they commented on those too. The only difference is – I’ve been using Source Super Soft and a Lefty Scuba since February! I had given her a Source to try, and she LOVES it. Of course!