had my teeth whitened one hour ago but they still look yellow. why?

Question

had it done in thailand. do you think i should go back and ask for more treatment?
if so, will i have to pay again?
or do they go more white later on?

Answer 1

some times the yellow discoloration could be the inside of the teeth reflecting on the outside since the outside is so clean itself. Going back to ahve them checked is definitely no harm, but repeat treatments may not be necessary, you can always get a second opinion too. good luck