Cal. Business and Professions Code § 1958

A person, company, or association is guilty of a misdemeanor, and upon conviction, shall be punished by imprisonment in a county jail not less than 10 days nor more than one year, or by a fine of not less than one hundred dollars ($100) nor more than one thousand five hundred dollars ($1,500), or by both that fine and imprisonment, who does any of the following: (a) Assumes the title of “registered dental hygienist,” “registered dental hygienist in alternative practice,” or “registered dental hygienist in extended functions” or appends the letters “R.D.H.,” “R.D.H.A.P.,” or “R.D.H.E.F.” to the person’s name without having had the right to assume the title conferred upon the person through licensure. (b) Assumes any title, or appends any letters to the person’s name, with the intent to represent falsely that the person has received a dental hygiene degree or a license under this article. (c) Engages in the practice of dental hygiene without causing to be displayed in a conspicuous place in the person’s office the person’s license under this article to practice dental hygiene. (d) Within 10 days after demand is made by the executive officer of the dental hygiene board, fails to furnish to the dental hygiene board the name and address of all persons practicing or assisting in the practice of dental hygiene in the office of the person, company, or association, at any time within 60 days prior to the demand, together with a sworn statement showing under and by what license or authority this person, company, or association and any employees are or have been practicing or assisting in the practice of dental hygiene. This sworn statement shall not be used in any prosecution under this section. (e) Is under the influence of alcohol or a controlled substance while engaged in the practice of dental hygiene in actual attendance on patients to an extent that impairs the licensee’s ability to conduct the practice of dental hygiene with safety to patients and the public.