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How hard is the DANB Dental Assisting (RHS + ICE) exam?

Quick answer

The DANB Dental Assisting (RHS + ICE) exam is a serious, studiable test — its difficulty comes less from any single hard idea than from the breadth of material across 4 weighted content areas. Expect 75 questions in 60 minutes. The passing standard is scaled score of 400 on a 100–900 scale. PrepPass has 300+ free DANB Dental Assisting (RHS + ICE) practice questions with explanations, organized by topic, plus a full timed mock exam.

Last checked 2026-09-22 · Source: DANB — Radiation Health and Safety (exam detail page); DANB — Radiation Health and Safety (RHS®) Exam Outline and References (PDF, effective 03/12/2025) · Full sourced exam facts

How to make the DANB Dental Assisting (RHS + ICE) exam easier

Work through real practice questions until you consistently clear the standard you need. PrepPass has 300+ free DANB Dental Assisting (RHS + ICE) practice questions with answer explanations and a full timed mock exam — no signup required.

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The DANB Dental Assisting (RHS + ICE) exam at a glance

75
questions
60 min
time limit
400 scaled
to pass
4
content areas

The 4 content areas on the DANB Dental Assisting (RHS + ICE) exam

The exam is built from weighted content areas — focus your study time where the weight is. These weights are how PrepPass has organized the material; check the exam authority’s own outline for its published breakdown.

感染控制30%
放射安全30%
投照技术25%
患者安全与法律15%
What is the pass rate, and can you retake it?

Wondering about pass rates and what happens if you don't pass the first time?

See DANB Dental Assisting (RHS + ICE)pass rate & retake rules →

Frequently asked questions

What score do you need to pass the DANB Dental Assisting (RHS + ICE) exam?+

The passing standard for the DANB Dental Assisting (RHS + ICE) exam is scaled score of 400 on a 100–900 scale.

How many questions are on the DANB Dental Assisting (RHS + ICE) exam?+

The DANB Dental Assisting (RHS + ICE) exam has 75 questions, with a time limit of 60 minutes.

How should I study for the DANB Dental Assisting (RHS + ICE) exam?+

Focus your time on the heaviest content areas, then drill practice questions by topic until you consistently clear the standard you need. PrepPass has 300+ free DANB Dental Assisting (RHS + ICE) practice questions with full explanations and a timed mock exam.

Exam details verified against the official authority:

Dental Assisting National Board (DANB) →

Last updated: August 2026

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