Can I ask my dentist out?
If you do intend to ask her out, you will need to be under the care of another dentist. She will more likely entertain that idea if she is interested (she will never date you if you are her patient).
Is it weird to ask out your dental hygienist?
Is it okay (or weird in inapporpriate) to ask out your dental hygienist? You can ask. It is professionally inappropriate for any dental provider to date a patient.
Can dentists tell if you vape?
The answer is yes. While some people switch from smoking to vaping because they may think vaping is a safer alternative to smoking, studies show that it is just bad for your teeth and gums. Vaping has the same adverse effects on your oral health as smoking and your dentist WILL be able to tell.