You didn't mentione the age of your kitty. If it really needs to be done, do it while the cat is young, healthy and strong enough to go through the process & recover successfully.
I asked my own vet last year if my cat (at 6yrs) needs it. Right now, she has healthy teeth & gums.
But, many years ago, my college roomate at the time was urged to have it done on her
19 year old cat. She, herself was too young at the time, to oppose the vet, even though she really didn't want to do it. The very next day after it was done and my roommate brought the cat home, the cat died. The stress, trauma and especially being put under the anesthesia (at that age) killed the cat. It should never have been done on a cat that age.

Anesthesia at any time always carries some risk.
My roomate blamed herself,

because she knew she didn't want to have it done. The cat wasn't originally brought in for that problem. The cat had something else, very minor. The cat never exhibited any signs or pain or problems regarding her teeth. She might have had another year or 2 with my ex-roommate.
I blame the Vet.

He had no problem keeping the $500 he made off of the operation.
I am extremely careful now who I take my cat to and what I am willing to have done.
For my own teeth problems, recently I went to a highly recommended oral surgeon to see if I needed my wisdom teeth out because my upper teeth have started to shift & crowd. While there was absolutely nothing wrong with my bottom wisdom teeth, he
urged me to have them taken out for
preventative reasons. He couldn't even touch the top ones as one was so embedded into the existing roots of other teeth. So what he recommended would not even correct the reason I went in for.
I had noticed when I was sitting in his waiting room, it was completely empty. The phone was hardly ringing. I really felt, in these hard economic times, people are cutting down on services they can do without. I felt his urging for the beneficial "preventative dentisty" was more to help him though his own economic hard times and to pay his rent than for my benefit.
I did more research, ended up going to an orthodontist who made me a retainer instead to solve the crowding & shifting. I went with my gut and am so much happier with my choice.
