Open Question: If I reveal my job(income) will my new dentist look to increase my bill?

Now that I have gotten my first good-paynig job I think merchants will be(understandably) looking to get more of it. I am a very frugal person and fear that my new Dentist will load-up on the bill. How can I avoid this? I was thinking of putting down a lower-paying job on the Dental Application. Do Dentists verify employment/employer?.