What Can I Do About My Slanted Teeth? (photo)

I will be 23 years old in August this year and as you can see on the picture, I have got 2 inside concave tooth. They have kept me from comfortably laughing or even smiling. I have had people telling me to wear braces. However, I work in fashion industry and really braces is my last option. That's why I wanted to ask the question here and hoping maybe I can find a better option that takes less time and affects the overall look a little less.