Smoothies with sanitized egg shells ground and comfrey (knit bone) can help with teeth issues. I used comfrey compresses for a shattered foot. It helped dramatically. Causes new blood cells to be formed where it's placed. Doctor was concerned I would have blood flow issues for life in the foot. Tons of physical therapy. Nope. It's fine. I wore the boot an extra month, babied it and comfrey comfrey comfrey. It would start tingling l you could feel the cells being born.