zhixiang dai: Hi there, I am an international student who studying in US now. So, instead of fixing my teeth in China, doing that in US is more easier and I found out that you guys are really good at that. So here are some of my consideration before I take the next step to make an appointment. 1. During the treatment I may have some language problem because I understand the important of that. I heard about Dr Hung, and wondering can he speak some Chinese? 2. How much Invisalign cost totally, I mean the whole therapeutic process. Thank you!