California Code, Health and Safety Code - HSC § 101530

(a) The department shall allocate any funds appropriated for that purpose to the Sonoma County Dental Health Authority for the provision of dental care and dental hygiene services for Medi-Cal to recipients covered under the Denti-Cal program, and for indigent persons in Sonoma County.

(b) The department shall permit the Sonoma County Dental Health Authority to impose a fee upon any indigent persons served by the program, commensurate with their ability to pay. An additional fee shall not be imposed upon Medi-Cal recipients for services covered by that program.