Wife and I have 2 dachshunds. Both females. One, weighing 7 pounds and long pointed face has cavities on the 2 top front of her mouth and the teeth are very small. I estimate the width of the 2 teeth ...
I would say this, when it is us, or ours, we all tend to worry to much. At least I do. But I tend to forget, for the vet, it is just another day at the office. They have done it a thousand times, and could do it in their sleep.
Our older dog had a busted canine, that needed to be pulled, and I had the same concerns as you. But all went well, to the vet no big deal. To us it was though. So I would say no worries, all will go well.