How much does an Asst. Professor - Dentistry make in Minnesota? The average Asst. Professor - Dentistry salary in Minnesota is $89,514 as of November 25, 2019, but the range typically falls between $72,219 and $107,903. 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.