Tooth regression? Our girl seems to be into regressions. (Maybe she will be a statistician?) Sleep? Oh yeah. And now, a tooth. Yes, a tooth. One of her front teeth came down and now has gone back up. I noticed it the other night before bed; naturally, I freaked out. At first, I thought she had chipped a tooth, but when I poked my finger in her mouth and felt it, it didn’t feel jagged or rough in any way.