S.B.
I can see your delima with the baby around, to some extent. Have you tried giving her water instead? My BIL is a dentist. He says that patients with bottle rot are heartbreaking to him. The milk sitting on her teeth all night can lead to tooth decay. The milk pools in the mouth. If there is damage it may mean that she needs her teeth capped later...which can be painful and requires going under anesthesia.
My son was a thumb sucker. You can't take a thumb away. It took a while to break that habit. And now we are dealing with the consequences of that behavior. My son is getting fitted for an expander this summer. You'll hear stories of babies using a bottle past two and being fine. I heard those stories about thumb sucking too. But not every kid is fine. It's hard to hear baby cry. But it's time to do what is best for her. In the very least, take away the night time bottle mama.