Cal. Bus. & Prof. Code § 1628.5

The board may deny an application to take an examination for licensure as a dentist or dental auxiliary or an application for registration as a dental corporation, or, at any time prior to licensure, the board may deny the issuance of a license to an applicant for licensure as a dentist or dental auxiliary, if the applicant has been convicted of a crime or subject to formal discipline pursuant to Section 480.