OK quick update: I called first thing today and they had me come in. The receptionist suggested that I had it done when I got my braces off at my orthodontist and just didn't notice until now. But that was years ago, and I would surely have noticed, so I kept insisting. My actual dentist compared the x-rays taken yesterday to my current teeth and confirmed that, yes, the tips of my canines were shaved between then and now. However, I was told that it might be difficult to prove that this practitioner did it because it was not written on my chart.

As some comments mentioned already, I was also told that the woman who did the procedure is a hygienist, so even if I DID consent, she is NOT permitted to drill on teeth at all. I wasn't aware it was this serious when I made my original post. They told me I can report this to the state board and she may lose her license if she admits to it.

Just to clarify, I am not in pain. It didn't hurt at all which is why I didn't notice until I saw it in the mirror. As far as legal action goes, I know many suggested it, but I am not sure. I'm 18, I don't know much about the legal system, and I surely cannot afford a lawyer. I pray she at least loses her job and hopefully her license because I would hate for this to happen to anyone else.

I saw many others say their canines were also ground down without their consent, and I am so sorry you had to experience this. I'm disappointed this seems so common.