Invisalign can only do so much...the aligners don't have nearly as much leverage to move teeth around as conventional braces do, and the system won't be able to do stuff like correct a serious over-bite. They can't do anything for the large molars in the back either, but they can effectively straighten up the alignment of the front teeth, if that's all you need.
The aligners are nearly invisible on your teeth and snap in & out easily, so they're not so bad to live with. They do need to be removed every time you eat something. Drinking is OK but it can feel a bit strange when liquid gets behind the aligners. Will definitely cut down on your snacking...
Some very small bosses, or keys, will be semi-permanently fixed to teeth in order to hold the aligners in place, and care must be taken to avoid knocking them off while eating. They get removed after you finish up with the last aligner.
Once the treatment ends, you'll be asked to wear a retainer every night for the rest of your days. And don't dare loose that sucker...ortho told me it'd be $700 to replace it
