What level of expanded function includes polishing of adhesive restorative material using a slow-speed handpiece?

Polishing of adhesive restorative material using a slow-speed handpiece falls under Level 2 expanded functions for dental hygienists in Iowa. This level is characterized by procedures that require more advanced skills and knowledge, surpassing the basic tasks typically performed by hygienists. In this case, the use of a slow-speed handpiece for polishing indicates a level of proficiency and understanding of dental materials and techniques appropriate for Level 2.

Level 1 typically includes more fundamental tasks such as preventive care and basic scaling, while Level 3 and Level 4 expand further into complex procedures that may require additional training or certification, including more invasive techniques that likely wouldn't be appropriate for a dental hygienist's scope of practice. Thus, the positioning of polishing adhesive restorative materials squarely within the competencies expected at Level 2 reflects the skill set necessary for executing such tasks safely and effectively.