One girl during the Gay/Lesbian Student Group meeting with fixed upper clear and lower metal braces.

One boy, the character Eric (Eric Deulen) wears fixed  upper and lower metal braces.

https://dereferer.me/?https://dereferer.me/?http://filmforce.ign.com/articles/454/454378p1.html

https://dereferer.me/?https://dereferer.me/?http://imdb.com/title/tt0363589/

Some screenshots here:

https://dereferer.me/?https://dereferer.me/?http://server6.theimagehosting.com/image.php?img=eric01.jpg
https://dereferer.me/?https://dereferer.me/?http://server6.theimagehosting.com/image.php?img=eric02.jpg
https://dereferer.me/?https://dereferer.me/?http://server6.theimagehosting.com/image.php?img=gsa01.jpg