Being a groomer myself, I use clippers. One of our groomers uses a dremel, but like most of you have said here, it really depends on the dog. If they can handle the noise and vibration and stuff, then they're fine. Some just can't take it, lol.

My cat's nails get trimmed once a week or so. They'd flip if I brought a dremel home,

For those of you asking about how often, the groomers recommend once a month depending on how much your dog walks on cement and stuff to wear them down.

Maybe on my next dog I'll try the dremel. I swear by my clippers as of right now-- I've gotten used to them and I haven't cut a quick in months. The trick is a little at a time.

Interesting thread!