Portland Community College | Portland, Oregon

Course Number:
DA 119
Course Title:
Expanded Duties II
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:

Course Description

Continues clinical training and practical experience in expanded function dental assisting duties as allowed by the Oregon Dental Practice Act. Prerequisites/concurrent: DA 114, DA 115, DA 118, DA 125, DA 135, and DA 152.

Addendum to Course Description

Emphasis will be placed on preparation and application of sealant material as well as placement of retraction cord in preparation for students to become Pit and Fissure Sealant Certified and Retraction Cord Certified. 

Intended Outcomes for the course

Upon completion of the course students should be able to:

  • Demonstrate sealant preparation and placement using correct and safe techniques.
  • Demonstrate placement of retraction cord using correct and safe techniques. 

Outcome Assessment Strategies

  • Complete weekly clinic worksheets and assignments
  • Complete Externship Evaluations
  • Complete Specialty Externship office rotation
  • Complete quizzes
  • Complete clinic competencies
  • Complete course final

Course Content (Themes, Concepts, Issues and Skills)


  • Dental Assisting Clinical Duties
  • Professionalism
  • Communication
  • Teamwork
  • Legal & Ethical Standards


  • Division 42 of the Oregon Practice Act
  • Armamentarium
  • Documentation
  • Fulcrum
  • Tooth surfaces
  • Indirect vision
  • Ergonomic positioning
  • Fluoride treatment
  • Indications and Contraindications
  • Post-operative instruction
  • Sealant procedure
  • Retraction cord placement


  • Time management
  • Organization
  • Self Direction
  • Safety


  • Perform sealant placement on an extracted tooth and on a patient
  • Apply fluoride on a patient
  • Place retraction cord on typdont tooth chairside

Related Instruction

Hours: 6

  • Demonstrate sealant preparation and placement using correct and safe techniques.

Communicate with co-student and/or patient about procedure and post operative instructions while providing sealant placement.