:)
People have been kissing with brackets in place for years (there are some things that just won't be stopped...!).
If bracketed people can find a way, wearing a smaller and thinner appliance would be no problem at all.
Invisalign is great for arch expansion which can help give a wider "Hollywood" smile as well as make space to alleviate the crowding. It is hard to put an exact time on it but usually takes between 6 and 10 months.
Orthodontists receive an additional 2-3 years of education after dental school (during their residencies). They were also in the top 5-10% of their dental school classes. After that every patient that walks in the door is an orthodontic patient compared to the general dentist who sees a...