Registered dental assistants (RDAs) have the highest educational requirements and will handle virtually everything in a dental office except the duties of the dentist. RDAs conduct administrative and clerical duties (such as scheduling and preparing clinical spaces for patients) and clinical duties such as taking x-rays and administering topical anesthesia. Hiring managers will be looking for advanced responsibilities that have grown over time, which can be augmented through the use of strong action verbs.