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http://www.dentallearning.net/courses/content/intraoral-radi...
Target Audience: Dental Assistants Dental Hygiene Students Dental Students

Radiography involves the use of x-radiation and thus is potentially dangerous if mishandled. For your own sake, and that of the staff, patient, and public, it is essential that you gain adequate knowledge of radiographic techniques and radiation health and safety, prior to performing clinical procedures. This course is intended to provide current, vital information on film and tube head placement, to serve as a guide to acquire new skills or refine current skills, and allow you to test yourself as you progress through the pages.