Cal. Bus. & Prof. Code § 1957
(a) A person whose license has been revoked or suspended, who has been placed on probation, or whose license was surrendered pursuant to a stipulated settlement as a condition to avoid a disciplinary administrative hearing, may petition the dental hygiene board for reinstatement or modification of the penalty, including modification or termination of probation, after a period of not less than the following minimum periods have elapsed from the effective date of the decision ordering disciplinary action:
(d) In considering reinstatement or modification or penalty, the dental hygiene board or the administrative law judge hearing the petition may consider the following: