Gum disease, along with receding gums, spaces between teeth that were never there before, popping jaw, painful jaw when chewing. My jaw locked open once for about 30 minutes. I switched from dental floss to a water pik, and exchanged my flouride toothpaste for this tooth powder, and in 3 weeks time, most of the spaces in my teeth are filled back in and I'm noticing healthier gums. The best part, no more painful eating or popping jaws! IN JUST 3 WEEKS TIME! I have been dealing with that jaw issue for years. I'm not sure if this tooth powder has anything to do with my clearing up my jaw issue, but man, what an oral health game changer!! I still have a ways to go to get my teeth back to what I consider perfect for me, but man is this stuff working!!!!! I LOVE THIS TOOTH POWDER!!!