HI, have you ever had dental braces to straighten your teeth?
Yes I have, when I was 16 years old.
My mom made me get them when I was younger and I hated them. Now as an adult I have gotten clear aligners to fix some shifting. 
I have seen those clear aligners, do you like them?
I do. They are not for everyone, but if you have mild to moderate crowding or spacing, they are definitely a good option. 
I may have to look into that. 
There are at least 5 different brands out there. A lot of people have heard of Invisalign, but there are also others like Orthoclear and ClearCorrect. So you should check prices. 
I will do that. Do you have any preference on a brand?
I've been happy with ClearCorrect. I was really surprised to learn that braces have been around since 400 BC. Isn't that crazy? Hippocrates and Aristotle considered how to fix crooked teeth!
That is crazy, I would never of imagined that.