I'm a 40 year old who hasn't been thrilled with her smile for many years. My teeth are actually pretty straight and healthy. But, I've always had a really big gap in front that bothered me. I'm no Madonna or David Letterman, so just because it works for them doesn't mean it works for me. I didn't get braces as a teen because none of the adults thought it was needed. Before I got married (in 1995) I asked my dentist about braces but we opted to have bonding added to my front teeth. That worked fine, but over the years the bonding has chipped, stained, and needed to be repaired now and again. I've never really liked how it looked in pictures because my front teeth look out of proportion to the rest.
I've thought about braces off and on over the years, and finally went for some consults. I really like the ortho I went with. When he told me it was a straightforward case and should take about 6 months I was pretty thrilled. I couldn't believe that I'd put it off all this time when it would be such a short "sentence". Of course, had I gone 20 years ago perhaps they wouldn't have used the same approach and it would have taken longer. Who knows.
I had the braces put on in March. Ceramic top and bottom, though the last molars are not braced. Here are some pictures:
This is the front view before. My teeth aren't particularly crooked, though some are slightly rotated. Never noticed but I can tell by the brackets. Hard to see the gap since it's covered by bonding, but that triangle at my gum line gives it away.

Side view. You can see the space which is on both sides, and is keeping the front teeth open.

Braces on! They are clear ceramic, and lighter than my teeth. Yikes.
