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DANB's NYPDA (NYPDA) Practice Tests & Test Prep by Exam Edge - Free Test


Our free DANB's New York Professional Dental Assisting (NYPDA) Practice Test was created by experienced educators who designed them to align with the official Dental Assisting National Board content guidelines. They were built to accurately mirror the real exam's structure, coverage of topics, difficulty, and types of questions.

Upon completing your free practice test, it will be instantly reviewed to give you an idea of your score and potential performance on the actual test. Carefully study your feedback to each question to assess whether your responses were correct or incorrect. This is an effective way to highlight your strengths and weaknesses across different content areas, guiding you on where to concentrate your study efforts for improvement on future tests. Our detailed explanations will provide the information you need to enhance your understanding of the exam content and help you build your knowledge base leading you to better test results.

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DANB's New York Professional Dental Assisting - Free Test Sample Questions

Which of the following is NOT one of the uses of wedges?

Correct Answer:
to help loosen a tooth that needs to be extracted.


the question inquires about the incorrect usage of wedges, specifically whether they are used to help loosen a tooth that needs to be extracted. the correct answer is that this is not one of the uses of wedges.

to understand why this is the correct answer, it's important to first clarify what wedges in dentistry are and their primary functions. wedges are small, triangular tools typically made from wood or plastic. they are used during dental restoration procedures, particularly when installing fillings.

the primary uses of wedges in dental procedures include: holding the matrix band in place, preventing the escape of excess filling material, and ensuring good contact between the restored tooth and adjacent teeth. a matrix band is a thin metal or plastic band that encircles the tooth and provides a form to guide the placement of the filling material in the cavity. the wedge is inserted into the interproximal space of the teeth (the space between adjacent teeth) to stabilize the matrix band and provide a tight seal. this setup prevents the filling material from flowing out into undesired areas, ensuring it only fills the cavity. additionally, the wedge helps to maintain appropriate pressure between teeth, which is crucial for the proper alignment and spacing after the removal of the matrix band once the filling has set.

in contrast to these uses, wedges are not designed for or used in the extraction of teeth. tooth extraction typically requires a different set of tools such as elevators or extraction forceps. these tools are specifically designed to handle the significant physical force needed to detach a tooth from its socket. using a wedge to loosen a tooth for extraction would be inappropriate and ineffective because it does not provide the necessary leverage or strength required to remove a tooth from the jawbone.

therefore, the correct answer to the question is that using wedges to help loosen a tooth that needs to be extracted is not one of their uses. instead, their role is confined to aiding in the dental restoration process by ensuring the effective and precise placement of filling materials.