In this chapter, unless the context requires otherwise,
(1) “board” means the Board of Dental Examiners;
(2) “calculus” means a hardened deposit of mineralized plaque;
(3) “coronal polishing” means the removal of supragingival plaque and stains;
(4) “dental assistant” means a person employed to provide clinical assistance to a dentist licensed in the state;
(5) “department” means the Department of Commerce, Community, and Economic Development;
(6) “impaired practitioner” means a person who is unfit to practice dentistry due to addiction or dependence on alcohol or other drugs that impair the practitioner's ability to practice safely;
(7) “licensed dental hygienist” means a dental hygienist licensed under AS 08.32;
(8) “licensed dentist” means a dentist licensed under this chapter;
(9) “opioid” includes the opium and opiate substances and opium and opiate derivatives listed in AS 11.71.140 and 11.71.160;
(10) “registered dental assistant” means a dental assistant registered under this chapter.