It depends what country you're in. Here in the UK, we have a 'national health service' which is free for everyone who has no means of paying for treatment. If someone has an infected tooth here, they would either see their own dentist - or present themselves at the nearest hospital's Accident and Emergency department. Every A & E dept. has a resident emergency dentist.
The dentist wouldn't know it.
A dentist is someone who helps patients with there teeth
go to college
A dental assistant.
A cold sore will not get infected if someone puts make up on it.
Yes, that is correct. You need to be infected to infect someone else with HIV.
no
You can get chickenpox from someone who is infected.
it means, if someone who has the infected title and is using it knifes you, then you are "infected" by them, so you get the title. STD works the same way, but you have to knife someone else who has the title and is using it, then you get it.
Yes, assuming they have sex with someone else who is infected.
You can't get chlamydia from drinking alcohol, even if you share a glass with someone who is infected. Chlamydia is spread by sexual contact with someone who is infected.
You can't get infected with HIV from someone coughing on you.