Apple cider Vinegar saves you hundreds when it comes to whiter teeth..

I just looked up all I can do with Apple cider vinegar for my husband.  To see if I can maybe rub his feet to relieve him from the constant pain that he is in.  And I came across this website that showed a view remedies for ACV.  One of them said that you can whiten your teeth with it.  I have had this one tooth in the front that has gone gray for some reason when I was still in Germany in my younger years.  The Dentist then said that there is nothing I could do that just some times happens!!!  So  I have lived with this gray tooth for the better part of 30 years.  When I read that websites I thought ok will see let's put you to the test...  I brushed my teeth like the website said before brushing them with regular toothpaste with ACV,  when I rinsed my mouth after I was done I looked in the mirror and I couldn't believe my eyes.  The gray tooth is completely white like my other teeth, I ran into the living room and asked my husband if he saw that too.  Or if I was just imagining things.  He said no it's definitely white.  Awesome!!!!  ACV you rock