California Codes, Business and Professions Code - BPC, Division 2 — Healing Arts, Chapter 4 — Dentistry, Article 9 — Dental Hygienists, Section 1909
A registered dental hygienist is authorized to perform the following procedures under direct supervision of a licensed dentist, after submitting to the dental hygiene board evidence of satisfactory completion of a course of instruction, approved by the dental hygiene board, in the procedures:
(a) Soft-tissue curettage.
(b) Administration of local anesthesia.
(c) Administration of nitrous oxide and oxygen, whether administered alone or in combination with each other.
Notes
Allows a registered dental hygienist, under direct supervision of a licensed dentist, to perform soft-tissue curettage, administer local anesthesia, and administer nitrous oxide and oxygen alone or together after submitting satisfactory evidence of completing a dental-hygiene-board-approved course in those procedures.
Use as reference
Lexinter.net | California Code, Business and Professions Code - BPC § 1909 | https://laws.lexinter.net/codes/california/business-and-professions-code/division-2/chapter-4/article-9/section-1909