My DD is 3.5 and has a dummy at night. The easter bunny is taking it away (in a few weeks actually ). I havent minded her having it, like Debbie said, it comforts my DD and seems to put her back to sleep.
We bought a glow dummy at one stage so we could find it. We never get up for her at night now to give it to her....She used to do that more at 12 months.

DD teeth are fine.

Its kinda a relief that DD#2 doesnt like the dummy or her thumb.....