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DANB's CDA (CDA) Practice Tests & Test Prep by Exam Edge - Topics



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Understanding what is on the DANB's CDA exam is crucial step in preparing for the exam. You will need to have an understanding of the testing domain (topics covered) to be sure you are studying the correct information.

  • Directs your study efforts toward the most relevant areas.
  • Ensures efficient and adequate preparation.
  • Helps identify strengths and weaknesses.
  • Allows for a focused approach to address gaps in understanding.
  • Aligns your preparation with the exam's expectations.
  • Increases the likelihood of success.
  • Keeps you informed about your field's current demands and standards.
There is no doubt that this is a strategic step in achieving certification and advancing your career.

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DANB's Certified Dental Assistant Exam Blueprint

Understanding the exact breakdown of the DANB's Certified Dental Assistant test will help you know what to expect and how to most effectively prepare. The DANB's Certified Dental Assistant has multiple-choice questions The exam will be broken down into the sections below:

DANB's Certified Dental Assistant Exam Blueprint
Domain Name % Number of
Questions
GC (120 Questions)
     Collection and recording of clinical data 10% 5
     Chairside dental procedures 45% 23
     Chairside dental materials (preparation, manipulation, application) 11% 6
     Lab materials and procedures 4% 2
     Patient education and oral health management 10% 5
     Prevention and management of emergencies 14% 7
     Office management procedures 6% 3
RHS (100 Questions)
     Expose and evaluate (intraoral, extraoral) 37% 19
     Process 16% 8
     Mount/label 11% 6
     Radiation safety-patient 24% 12
     Radiation safety-operator 12% 6
ICE (100 Questions)
     Patient and dental healthcare worker education 10% 5
     Prevent cross-contamination and disease transmission 20% 10
     Maintain aseptic conditions 10% 5
     Perform sterilization procedures 15% 8
     Environmental asepsis 15% 8
     Occupational safety 30% 15

DANB's Certified Dental Assistant - Exam Topics Sample Questions

Long exposure time for dental X-ray film results in:

Correct Answer:
dark film.


in dental radiography, the exposure time directly influences the density of the resulting x-ray film. when the film is exposed to x-rays for a longer duration, more x-ray photons strike the film, increasing its exposure. this results in a greater conversion of the silver halide crystals within the film's emulsion layer into metallic silver, which appears black after the film is developed. thus, a longer exposure time leads to a darker x-ray film.

the relationship between exposure time and film darkness is crucial for obtaining the optimal contrast in dental x-rays. adequate contrast is necessary to differentiate between various tissues and structures in the mouth, such as teeth, gums, and bones. if the film is too dark due to overexposure, it can obscure fine details, making diagnostic interpretation challenging. conversely, underexposure results in a too light film, lacking sufficient detail for effective diagnosis.

other factors that influence the darkness of the film include the milliamperage (ma) and the kilovoltage peak (kvp). the ma setting controls the quantity of x-ray photons produced by the x-ray tube. a higher ma setting increases the number of photons, thus increasing the film's exposure and resulting in a darker image. similarly, the kvp setting controls the energy of the x-ray photons. higher kvp values produce higher energy photons that penetrate deeper and expose the film more intensely, further darkening the image.

it is essential for dental professionals to carefully calibrate the exposure time, ma, and kvp settings according to the specific diagnostic requirement and the area of interest in the oral cavity. this ensures not only optimal image quality but also minimizes the radiation dose to the patient, adhering to the principle of alara (as low as reasonably achievable), which aims to minimize radiation exposure while achieving the required diagnostic quality.