Is there anywhere that you can get free or low cost cosmetic dental treatments in the Uk? Such as dental schools etc. As privately these procedures can cost thousands of pounds

I have just finished my required courses to get into dental hygiene schools in Washington State and am wondering what schools are considered the best in the state. I’ve heard about Shoreline Community College’s and Lake Washington Technical College’s programs and heard they are good but I am looking for the school that is considered the best in the state. Any help is very much appreciated!