"She has big teeth."
Translation:Ela tem dentes grandes.
If you said "Ela tem grandes dentes," would that mean she has great teeth?
Hmm... probably not... we would not change the order here..your insigt is good. I dont know why it does not occur here... but if one says "grandes dentes" it would still mean "big teeth"... for great teeth ome would probably say "ótimos dentes / dentes ótimos"