To work radiographic procedures in Kentucky, you will need to be trained on the job with a licensed dentist for a total of six hours, pass the national Dental Assistant National Board Radiation Health and Safety (RHS) exam, or successfully complete a CODA-approved course in dental radiology. To be certified in coronal polishing, you must complete an eight-hour course at a CODA-accredited association.
Since radiographs do expose the human body to slight amounts of radiation, typically dental assistants will limit their exposure by setting up the radiograph and activating the sensor a few feet away from the patient. In some dental offices, pregnant dental assistants are not to take radiographs. If you do have concerns about taking radiographs regularly, most dental offices will accommodate you, but there really is not much to worry about with the limited exposure.