Ohio Revised Code Title XLVII. Occupations Professions § 4715.21

(A) Each person who desires to practice as a dental hygienist shall file with the secretary of the state dental board a written application for a license, under oath, upon the form prescribed.  Such applicant shall furnish satisfactory proof of being at least eighteen years of age.  An applicant shall present a diploma or certificate of graduation from an accredited dental hygiene school and shall pay the examination fee of one hundred twenty dollars if the license is issued in an odd-numbered year or one hundred eighty-four dollars if issued in an even-numbered year, except that beginning January 1, 2025, the fee shall be one hundred eighty-four dollars regardless of the year in which the license is issued.  Those passing such examination as the board prescribes relating to dental hygiene shall receive a certificate of registration entitling them to practice.  If an applicant fails to pass the first examination the applicant may apply for a re-examination at the next regular or special examination meeting of the board.

(B) No applicant shall be admitted to more than two examinations without first presenting satisfactory proof that the applicant has successfully completed such refresher courses in an accredited dental hygiene school as the state dental board may prescribe.

(C) An accredited dental hygiene school shall be one accredited by the American dental association commission on dental accreditation or whose educational standards are recognized by the American dental association commission on dental accreditation and approved by the state dental board.