If you're an adult who's had braces, you remember how terrifying it was to realize you might have to walk around with a mouth full of metal. In your mind, it was social suicide. After getting them though, you realized it was not such a big deal, and when they came off, you appreciated that you took the leap. However, there are alternative ways to straighten your teeth these days that might allow you to avoid the dreaded metal braces.
Most people have heard of Invisalign, and these are one particular brand of invisible aligners that you can get. If you only need some minor adjustments to your smile this might be the way to go. You will have to remember to wear them almost all the time though, except when you're eating. While eating you have to remove them, which can be a bit of an inconvenience, but at least you can eat whatever you want unlike with regular braces.
You can also check out lingual braces if you are really looking for a hidden teeth straightening solution. These are braces that actually go on the back of your teeth instead of the front. You have to avoid eating certain foods like you would with regular braces, but at least people can not see them.
Some people also opt to get clear braces to make the appearance of their braces a little less noticeable. These are braces made of clear or white plastic, and is intended to reduce the visual appearance of braces. This may seem like a great idea, but in reality they are still pretty noticeable. At least with braces, you see them and you know what they are. With clear or white braces someone might see them and just think your teeth are really messed up and jagged. This is not the most recommended way to go about straightening your teeth invisibly.
Teeth straightening surgery is also an option, but really this is mostly for extreme cases, and for major reconstructive purposes. This is obviously a riskier solution than non-surgical methods, but it does have the benefit of not having to wear any kind of braces or aligner over a great length of time. This is an option that should only be carefully considered with the advice of your dentist, and is usually left as a last resort. It's almost always best to go with some sort of braces rather than this route.