DANB NELDA study guide
DANB NELDA · Work through your exam, one topic at a time.
The National Entry Level Dental Assistant (NELDA) exam is one of the exams offered by the Dental Assisting National Board (DANB), a credentialing body for dental assistants in the United States. DANB describes the NELDA exam as a way to "jump-start your dental assisting" career, positioning it as an entry point for people who are new to the field or who are preparing to work chairside under a dentist's supervision. Because it is an entry-level exam, candidates generally encounter it early in their training or on-the-job experience rather than as an advanced credential. DANB lists NELDA alongside its other featured exams, including Radiation Health and Safety (RHS), Infection Control (ICE) and the Certified Dental Assistant (CDA) exam, and it points candidates to its "Prepare for Exams" resources, including study guides and the DALE Foundation's online practice tests and review courses. The DANB NELDA study guide has 3 sections and about 964 words.
01Radiation Health and Safety
The RHS component tests whether you can protect patients and yourself while producing diagnostically useful images. Know the ALARA principle (dose as low as reasonably achievable), the difference between primary radiation (the useful beam), secondary/scatter radiation (the main occupational hazard), and leakage radiation .
335 words, about 2 min02Infection Control
Infection control questions test the chain of infection (infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host) and how each link is broken. Master the CDC/OSHA framework : standard precautions apply to all patients regardless of diagnosis; transmission-based precautions (contact, droplet, airborne) add to standard precautions for known infections.
319 words, about 2 min03General Chairside Assisting
General chairside covers four-handed dentistry , instrument transfer, isolation and moisture control, dental materials, and patient communication. Know instrument grasps (pen, palm, modified pen) and the transfer zone (the assistant passes within the transfer zone, keeping instruments parallel and oriented so the dentist can grasp without looking).
310 words, about 2 min