I had taken Doxy 400mg daily for about 6 months before I started Dr. Jernigan's protocol and all my natural teeth turned black. When I stopped the doxy, my teeth turned back to their natural color so I knew it was the doxy that did this.
Also, today I use a natural tooth powder called Good-Gums and I love this stuff! All natural and does wonders for the few teeth I have remaining. Also whitens my teeth. I didn't order from this site, I found a different site where it was less money but can't find that site at the moment.
I also use Kiss My Face Toothpaste (triple action aloe vera), again, all natural, for regular brushing (I order it from Vitacost):
Hope this helps,
It's all about
the Immune System mixed with Daily Detoxing and a dose of Positive Thinking!