Fluoride Multiple Choice

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Quizzes Created: 4 | Total Attempts: 4,043
Questions: 10 | Attempts: 2,286

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Fluoride Quizzes & Trivia

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Questions and Answers
  • 1. 

    Most bottled water contains fluoride

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because most bottled water does not contain fluoride. Fluoride is typically found in tap water, as it is added to promote dental health. However, many brands of bottled water go through a filtration process that removes fluoride along with other impurities. Therefore, it is not accurate to say that most bottled water contains fluoride.

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  • 2. 

    Which of the following was an original research city for fluoride in 1945?

    • A.

      New York, New York

    • B.

      Albuquerque, New Mexico

    • C.

      Grand Rapids, Michigan

    • D.

      Aurora, Illinois

    Correct Answer
    C. Grand Rapids, Michigan
    Explanation
    Grand Rapids, Michigan was an original research city for fluoride in 1945. This means that it was one of the first cities to conduct research on the effects of fluoride and its potential benefits for dental health. The city likely implemented a water fluoridation program or conducted studies to determine the impact of fluoride on dental caries.

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  • 3. 

    Approximately 99% of systemic fluoride is retained in which of the following:

    • A.

      Kidneys

    • B.

      Mineralized tissues

    • C.

      Blood plasma

    • D.

      Oral mucosa

    Correct Answer
    B. Mineralized tissues
    Explanation
    Systemic fluoride refers to fluoride that is ingested and then distributed throughout the body via the bloodstream. The question asks where approximately 99% of this systemic fluoride is retained, and the correct answer is mineralized tissues. Mineralized tissues include teeth and bones, which have a high affinity for fluoride and can retain a significant amount of it. This is why fluoride is often recommended for dental health, as it can help strengthen tooth enamel and prevent tooth decay.

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  • 4. 

    The process of lowering the amount of fluoride in fluoridated water to an optimum level to prevent fluorosis is known as:

    • A.

      Hypocalcification

    • B.

      Demineralization

    • C.

      Unfluoridation

    • D.

      Defluoridation

    Correct Answer
    D. Defluoridation
    Explanation
    Defluoridation is the process of lowering the amount of fluoride in fluoridated water to an optimum level in order to prevent fluorosis. Fluorosis is a condition that occurs when excessive fluoride is consumed, leading to dental and skeletal problems. By removing excess fluoride from the water, defluoridation helps to ensure that the water is safe for consumption and does not pose a risk to public health.

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  • 5. 

    After tooth eruption adults get no further benefits from fluoride

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Adults do continue to benefit from fluoride even after tooth eruption. Fluoride helps to prevent tooth decay by strengthening the enamel and making it more resistant to acid attacks from bacteria and sugars in the mouth. It can also help to remineralize early stages of tooth decay. Therefore, it is important for adults to continue using fluoride toothpaste, mouth rinses, and receiving professional fluoride treatments to maintain good oral health.

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  • 6. 

    All of the following are topical effects of fluoride in preventing dental caries EXCEPT

    • A.

      Inhibits demineralization

    • B.

      Enhances remineralization

    • C.

      Inhibits bacterial activity

    • D.

      Decreases oral pH

    Correct Answer
    D. Decreases oral pH
    Explanation
    Fluoride has several topical effects in preventing dental caries. It inhibits demineralization by strengthening the tooth enamel and making it more resistant to acid attacks. It also enhances remineralization by promoting the incorporation of minerals into the tooth structure. Additionally, fluoride inhibits bacterial activity by interfering with the metabolism and growth of bacteria in the mouth. However, fluoride does not decrease oral pH. In fact, it can help maintain a neutral pH in the mouth by buffering the acids produced by bacteria.

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  • 7. 

    Dental Fluorosis can begin at levels over _____ ppm

    • A.

      2 ppm

    • B.

      8 ppm

    • C.

      4 ppm

    • D.

      1.7 ppm

    Correct Answer
    A. 2 ppm
    Explanation
    Dental Fluorosis is a condition that affects the teeth due to excessive fluoride intake. It can occur when fluoride levels in drinking water are above a certain threshold. The correct answer, 2 ppm, suggests that Dental Fluorosis can begin when fluoride levels in water are over 2 parts per million. This means that if the fluoride concentration in drinking water exceeds this level, individuals may be at risk of developing Dental Fluorosis.

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  • 8. 

    Skeletal fluorosis is seen in drinking water fluoride levels over  

    • A.

      2 ppm

    • B.

      8 ppm

    • C.

      20 ppm

    • D.

      40 ppm

    Correct Answer
    C. 20 ppm
    Explanation
    Skeletal fluorosis is a condition that occurs due to excessive fluoride intake over a long period of time. It is characterized by the accumulation of fluoride in the bones, leading to bone and joint pain, stiffness, and deformities. The threshold level at which skeletal fluorosis is seen in drinking water is considered to be 20 ppm (parts per million) of fluoride. When the fluoride concentration in drinking water exceeds this level, there is an increased risk of developing skeletal fluorosis.

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  • 9. 

    All of the following are signs of dental fluorosis EXCEPT

    • A.

      Slight green stain at gingival margin

    • B.

      Dark brown stain present

    • C.

      Areas of very whiter than normal enamel

    • D.

      Pitting of enamel surface

    Correct Answer
    A. Slight green stain at gingival margin
    Explanation
    Dental fluorosis is a condition caused by excessive fluoride intake during tooth development, resulting in changes in the appearance of tooth enamel. It typically presents as areas of very white or brown stains on the teeth, pitting of the enamel surface, or enamel that is whiter than normal. A slight green stain at the gingival margin is not a sign of dental fluorosis and is therefore the exception in this case.

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  • 10. 

    Prior to Jan, 2011, the accepted range of fluoride levels in drinking water by the U.S Public Health Service was

    • A.

      1 - 2 ppm

    • B.

      .7 - 4 ppm

    • C.

      .7 - 1.2 ppm

    • D.

      .7 ppm

    Correct Answer
    C. .7 - 1.2 ppm
    Explanation
    The accepted range of fluoride levels in drinking water by the U.S Public Health Service prior to January 2011 was between 0.7 and 1.2 parts per million (ppm).

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  • Current Version
  • Apr 01, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 11, 2013
    Quiz Created by
    Klamberton
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