Why does the smell of an orange make my teeth hurt?

it happens in your brain it does not like the smell and the brain knowns when you eat the orange it's very acidic so naturally it sends messages to your teeth that is what makes your teeth hurt.

then i had one of my teeth pulled mine was same because the tooth bone was infected and even the dentist as she pulled it out said it smells so you wisdom teeth might of been infected and the infection got into your gums so see a dentist aspa even an emergency dentist. i've had an infection in one of my tooth front teeth last year and the dentist prescribed me with amoxicillin and that worked and it taken the pain away after day or so using it

Citric acid

well obviously the enzymes in the atomic molecular cells of the orange effect this. duhhh 3rd grade