it does look like a pill, which wasn't my intention. It's an "A" and a "D" lettermark... representing your initials. I love the way this turned out too.
here's the obligatory tooth. However studies show that people don't favor images of teeth on dental logos. Since you specialize with a clientele that has dental procedure fears, it might not be a direction you want to go in.
I had to google ekg waveform and those things a scary looking and I'm not even afraid of the dentist or surgery. How about some waveforms that are a bit more abstract?