A tooth is like an organ. even though you teeth are 歪斜，向外突出, they are still healthy organs. 烤瓷牙 has thick walls which means you need to get rid of quite amount of you healthy organ part. Remember they are not self-recoverable. That's why doctors should be always more careful when non-reversible procedure are suggested. Not to mention your teeth still has live pulp. The only motivation I see here is the profit of 烤瓷牙 and her lack of ability on 正畸.

I really think you should find a real 正畸 doctor. At lease, you can just consult, to be more prepared for the future plan?