How do i get my 2 year old to allow me to brush her teeth?

my daughter just turned 2. for a while she was letting me brush her teeth. for the last two weeks she has been turning away, closing her mouth. then it becomes a power struggle, and guess who loses? me. so i give up and her teeth go unbrushed. i’ve tried telling her everyone brushes their teeth, but i don’t know if she really comprehends. suggestions, please.