Iowa Admin. Code r. 650-20.2
As used in this chapter:
"Dental assistant" means any person who, under the supervision of a dentist, performs any extraoral services including infection control or the use of hazardous materials or performs any intraoral services on patients. The term "dental assistant" does not include persons otherwise actively licensed in Iowa to practice dental hygiene or nursing who are engaged in the practice of said profession.
"Dental assistant trainee" means any person who is engaging in on-the-job training to meet the requirements for registration in accordance with Iowa Code section 153.39 and who is learning the necessary skills under the personal supervision of a licensee or registrant. Trainees who are 18 years of age or older may also engage in on-the-job training in dental radiography pursuant to rule 650-22.3 (136C,153).
"Public health supervision" means all of the following:
1. The dentist authorizes and delegates the services provided by a registered dental assistant to a patient in a public health setting, with the exception that services may be rendered without the patient's first being examined by a licensed dentist;
2. The dentist is not required to provide future dental treatment to patients served under public health supervision;
3. The dentist and the registered dental assistant have entered into a written supervision agreement that details the responsibilities of each licensee/registrant, as specified in subrule 20.9(2); and
4. The registered dental assistant has an active Iowa registration and a minimum of one year of clinical practice experience.
"Registered dental assistant" means any person who has met the requirements for registration and has been issued a certificate of registration.
"Trainee status expiration date" means 12 months from the date of employment as a dental assistant trainee.
Iowa Admin. Code r. 650-20.2