logo 1 A and E. A, taking the negative space of the tooth-like image and E, at the center of A. It also looks like a knob that opens for endodontic care.
Not sure exactly why, but I don't really love this design. Possibly a little too abstract (hard to interpret the A, E and tooth shape). I looked at your portfolio and think you've done some great designs so I would like to encourage you to take another crack at it.
I like the graphic in #31 but the text gets a little lost. Could you try combining the symbol with different arrangements of text (possibly larger size and different typestyle)