How much does an Assoc. Professor - Dentistry make in Washington? The average Assoc. Professor - Dentistry salary in Washington is $115,878 as of November 25, 2019, but the range typically falls between $101,592 and $171,767. Salary ranges can vary widely depending on the city and many other important factors, including education, certifications, additional skills, the number of years you have spent in your profession.