Frank Liu didn’t know how to put in a post and crown on my front tooth. it was supposed to be a post and core. The core was done but it wasn’t fitted to the inside of the core. after several month, the post came off. looking at the post, it looks like some crappy work. he’s not qualify to do post and core work. just let him do cleanings. this was good waste of my $$. this was about 6 years ago…