Oil Pulling isn't something that any of the healers upon which our protocol is based ever did...it's something that I suggest adding (as long as that agrees with ones 'doctor within'). I don't reach for my rolling pin
(lol), unless folks are posting negatively about them (or just being rude).
I actually have no idea if oil pulling helps to remineralize teeth or not, but it sure seems that it would help correct our 'mouth terrain' to assist the process.
I have read various reports of certain oils changing teeth color, so I'm not surprised to see your report.
When Miss H was doing the IP, there was a period where her teeth darkened and seemed to be weaker (so much that others noticed), but they eventually lightened. I don't remember if/how much she was oil pulling at the time.
Teresa, 'tooth remineralization' is one of those things that is tough to 'force' because it's very low on our bodies list of 'daily priorities' when we're compromised. As in, if our teeth & bones are weakening, it's a clear sign we're not ingesting or assimilating enough vitamins/minerals (and/or not processing them correctly)...and that takes us back to the basics. You certainly can't assimilate or process enough vital nutrition if you're not ingesting enough...and when assimilation is compromised (like yours is), you need to be ingesting MORE than enough. So do your best to make sure that's happening every day :)
I'm thinking you could easily (and very inexpensively) add Comfrey leaf to your smoothies (or make a strong tea). Check out the nutritional profile here: http://www.miraclecomfrey.net/nutrition.html
...and be sure to read this: http://www.herbsarespecial.com.au/free-herb-information/comfrey.html