37a32476__S__Bureau_of_Labor_Statistics__Job_Duties
[Occupation] Dental Hygienists [ENTRY-LEVEL EDUCATION] Associate’s degree [2012 MEDIAN PAY] $70,210 [Job Duties] 
Dental hygienists clean teeth, examine patients for signs of oral diseases such as gingivitis, and provide other preventative dental care. They also educate patients on ways to improve and maintain good oral health.
Radiation Therapists : Occupational Outlook Handbook: : U.S. Bureau of Labor Statistics