I got my braces off a while back, like August, I still wear my clear retainers every hour of the day and night. I do brush my retainers for the most part. I brush and floss my teeth once a day. I do not brush my teeth at night (though I just started doing so). Recently, I switched to Biotene toothpaste instead of crest with scope. My mouth gets dry sometimes causing me to have bad breath. Anyways, it worked wonders but at what price? I had a lot more saliva in my mouth, but by the end o f the day, I had some white stuff on my teeth that looked like plaque. Then, when I brush my teeth with my regular toothpaste at night it goes away and comes back later? Is this the toothpaste? Help. Thanks.