N.C. Gen. Stat. § 90-32

The original license granted by the North Carolina State Board of Dental Examiners shall bear a serial number, the full name of the applicant, the date of issuance and shall be signed by the president and the majority of the members of the said Board and attested by the seal of said Board and the secretary thereof. The certificate of renewal of license shall bear a serial number which need not be the serial number of the original license issued, the full name of the applicant and the date of issuance.