The root of "dentist" comes from Latin through French. Based on its derivation, the word basically means "tooth person" or "tooth worker".

Yes I am 14 and I went to the dentist to have my teeth professionally whitened

Its basically a school nurse, school physican, or a school dentist.

Dentist love to be dentist because they make money.

for a male dentist a dentist set with a few handy equipments would be best.

for a female dentist a flower or statue of dentist would be cool