1. According to the North Carolina Dental Practice Act, which of the following procedures is a licensed dental hygienist legally permitted to perform independently? A) Diagnosis of oral diseases B) Placement of dental sealants C) Administration of local anesthesia D) Prescription of radiographs Correct Answer: B) Placement of dental sealants Explanation: Under the North Carolina Dental Practice Act, dental hygienists are allowed to place dental sealants independently as part of their scope of practice. 2. The North Carolina State Board of Dental Examiners requires dentists to obtain how many hours of continuing education every renewal period? A) 10 hours B) 15 hours C) 20 ho