About NELDA Exam Prep
An independent practice platform for the National Entry Level Dental Assistant (NELDA) exam - real questions across every exam domain, each with a plain-language explanation.
What's on the NELDA exam
The National Entry Level Dental Assistant (NELDA) exam is organized into 9 knowledge domains. It has 230 questions and is completed in 3 hours. Each domain makes up a different share of the exam, so the most efficient way to prepare is to know where the weight sits and practice accordingly:
- Head, Neck and Oral Cavity40% of the exam
- Tooth Anatomy, Morphology and Physiology60% of the exam
- Prevention of Disease Transmission20% of the exam
- Prevention of Cross-contamination34% of the exam
- Process Instruments and Devices26% of the exam
- Occupational Safety and Administration Protocols20% of the exam
- Purpose and Technique50% of the exam
- Radiation Characteristics and Protection25% of the exam
- Infection Prevention and Control25% of the exam
Every practice question on this site is organized across these 9 domains, so your study tracks the real exam structure instead of guesswork. As you answer, the per-domain analytics surface the areas still costing you points, so your review goes where it moves your score.
What we believe good exam prep looks like
Realistic practice beats passive reading. Every question is written to mirror the style and difficulty of the real exam, with a clear explanation of why the right answer is right and the others aren't.
Your weak spots should find you. Domain analytics, mistake review, and re-drilling are built in, so study time goes where it moves your score.
Pricing should be simple. One payment for a fixed access window matched to your exam date. No subscription, no auto-renewal, and 10 free questions to try before you spend anything.
Get in touch
Questions, feedback, or something not working? Email support@boardmentor.study - candidate messages are read and answered.