At the top of this page, you’ll find a button that grants access to the complete Admission Test for Dental Hygiene (ATDH) practice test. Additionally, we have provided full-length practice exams for the ATDH further down. By engaging with these practice tests, you will uncover your strengths, pinpoint areas that need more focus, and identify your strongest competencies. To further tailor your study efforts, we offer quizzes specific to different domains, allowing you to concentrate on ATDH practice questions in the areas where you seek the most enhancement.

ATDH Domain Exams

The Admission Test for Dental Hygiene (ATDH) is a crucial step for those aspiring to enter dental hygiene programs. It assesses a candidate’s readiness and aptitude for a career in dental hygiene across several domains. 

Here’s a detailed overview of the ATDH exam domains:

Domain 1: Reading Comprehension

  • Key Focus: Topics can range widely but are selected for their relevance to health and dental hygiene. Understanding complex texts and drawing logical conclusions are crucial skills here.

Welcome to your ATDH Domain 1: Reading Comprehension

Domain 2: Language Usage

  • Key Focus: Expect to see questions on grammar, punctuation, sentence structure, and vocabulary. Precision in language usage is vital for effective communication with patients and colleagues.

Welcome to your ATDH Domain 2: Language Usage

Domain 3: Quantitative Reasoning

  • Key Focus: The emphasis is on problem-solving and the application of mathematical concepts to real-world scenarios, particularly those relevant to dental hygiene.

Welcome to your ATDH Domain 3: Quantitative Reasoning

Domain 4: Perceptual Ability

  • Key Focus: You’ll need to demonstrate your ability to visualize and manipulate objects, an essential skill in dental hygiene for understanding structures and performing precise movements.

Welcome to your ATDH Domain 4: Perceptual Ability

Domain 5: Biology

  • Key Focus: Key areas include cell biology, genetics, evolution, and systems biology, with an emphasis on their application to health and disease, particularly in the oral cavity.

Welcome to your ATDH Domain 5: Biology

Domain 6: General Chemistry

  • Key Focus: Expect to see questions on the periodic table, chemical bonds, thermodynamics, and basic organic chemistry. A solid grasp of these concepts is crucial for understanding the chemical aspects of dental treatments and materials.