Fluoride Fill In The Blank

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| By Klamberton
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Quizzes Created: 4 | Total Attempts: 4,043
Questions: 15 | Attempts: 110

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Fluoride Fill In The Blank - Quiz


FILL IN THE BLANK


Questions and Answers
  • 1. 

    Dr. McKay first described fluorosis as Colorado ________________.

    Explanation
    Dr. McKay first described fluorosis as Colorado brown stain. This suggests that Dr. McKay observed and documented cases of fluorosis in Colorado where individuals had brown stains on their teeth. This description highlights the visual manifestation of fluorosis, indicating that it is characterized by the presence of brown stains on the teeth.

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  • 2. 

     _________________ is a developmental disturbance of dental enamel caused by excessive exposure to high concentrations of fluoride during tooth development.

    Explanation
    Fluorosis is a developmental disturbance of dental enamel caused by excessive exposure to high concentrations of fluoride during tooth development. This condition occurs when the enamel of the teeth is exposed to too much fluoride, resulting in white or brown stains on the teeth. The excessive fluoride disrupts the normal mineralization process of the enamel, leading to its discoloration and weakening. Fluorosis can occur due to various factors, such as drinking water with high fluoride content or using excessive fluoride toothpaste during childhood.

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  • 3. 

    The ________________ is the agency responsible for the safety and quality of drinking water, and thus regulates fluoride levels in the USA. 

    Explanation
    The EPA, or Environmental Protection Agency, is the agency responsible for the safety and quality of drinking water in the USA. They regulate fluoride levels to ensure that the water is safe for consumption.

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  • 4. 

    ________________ defluoridation is needed where naturally occurring fluoride is reduced to prevent fluorosis.

    Explanation
    Defluoridation is needed in areas where there is a high concentration of naturally occurring fluoride in the water. This process helps to reduce the fluoride levels to prevent fluorosis, a condition caused by excessive fluoride intake. Fluorosis can lead to dental and skeletal fluorosis, which can cause tooth decay, brittle bones, and joint pain. Therefore, implementing defluoridation methods is necessary to ensure the safety and well-being of the population in these areas.

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  • 5. 

    Before the Jan. 7, 2011 revision, the optimum level of fluoridation in the water supply in a temperate climate was ________________ ppm.

    Explanation
    Before the Jan. 7, 2011 revision, the optimum level of fluoridation in the water supply in a temperate climate was 1 ppm.

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  • 6. 

    Most fluoride is absorbed in the stomach, and is filtered out by the________________. 

    Explanation
    Fluoride is primarily absorbed in the stomach and then filtered out by the kidneys. The kidneys play a crucial role in maintaining the body's fluid balance and filtering waste products from the blood, including fluoride. They help regulate the levels of various substances in the body, ensuring that necessary nutrients are retained while excess or harmful substances, like fluoride, are eliminated through urine. Therefore, the kidneys are responsible for removing most of the absorbed fluoride from the body.

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  • 7. 

     ____________is the form of hydroxyapatite in which fluoride ions have replaced some of the hydroxyl ions.

    Explanation
    Fluorapatite is the form of hydroxyapatite in which fluoride ions have replaced some of the hydroxyl ions. This substitution results in a more stable and resistant mineral structure. Fluorapatite is commonly found in teeth and bones, where it helps to strengthen and protect them against decay and erosion. It is also used in dental products, such as toothpaste and mouthwash, to enhance the remineralization of tooth enamel and prevent tooth decay.

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  • 8. 

    Fluoride aids in desensitization by blocking the _________    ___________.

    Explanation
    Fluoride aids in desensitization by blocking the dentinal tubules. Dentinal tubules are tiny channels that connect the outer surface of the tooth to the nerve endings inside. When these tubules are exposed, it can cause tooth sensitivity. By blocking these tubules, fluoride helps to reduce the transmission of pain signals from the tooth's surface to the nerves, thus reducing sensitivity.

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  • 9. 

                                                                      Fluoride helps remineralization by helping precipitation of calcium and _______________.

    Explanation
    Fluoride helps remineralization by helping precipitation of calcium and phosphate. Phosphate is an essential component of hydroxyapatite, which is the main mineral in tooth enamel. When fluoride is present, it attracts calcium and phosphate ions, facilitating their deposition onto the tooth surface. This process helps strengthen and rebuild the enamel, making it more resistant to acid attacks and tooth decay.

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  • 10. 

    One way fluoride inhibits bacterial activity is by inhibiting the enzyme ___________.

    Explanation
    Fluoride inhibits bacterial activity by inhibiting the enzyme enolase. Enolase is a key enzyme in the glycolytic pathway, which is essential for the metabolism of glucose in bacteria. By inhibiting enolase, fluoride disrupts the bacteria's ability to generate energy, leading to a decrease in bacterial activity. This inhibition of enolase by fluoride has been shown to be an effective mechanism for preventing dental caries and controlling bacterial growth in the oral cavity.

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  • 11. 

    The US agency the ______________ named fluoridation of water to be one of the 10 most important public health measures of the 20th century. 

    Explanation
    The US agency, CDC, recognized fluoridation of water as one of the 10 most important public health measures of the 20th century.

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  • 12. 

    The fluoride concentration in enamel is highest at the ____________surface.

    Explanation
    The fluoride concentration in enamel is highest at the outer surface because fluoride ions from sources like toothpaste or water are able to penetrate the enamel and accumulate on the outer layer. This outer layer of enamel is constantly exposed to saliva and oral fluids, which helps to maintain and increase the fluoride concentration. As a result, the outer surface of enamel has the highest concentration of fluoride compared to the inner layers.

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  • 13. 

    Within the ______ years before eruption developing teeth acquire the greatest amount of fluoride.

    Explanation
    Within the 2 years before eruption, developing teeth acquire the greatest amount of fluoride.

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  • 14. 

    Dr. __________      ___________ found healthy people with long life span lived in communities with water greater than 1 ppm.

    Explanation
    Trendley Dean is the correct answer because he conducted a study on the relationship between water fluoride levels and dental health, known as the Grand Rapids fluoridation study. This study found that communities with water fluoride levels greater than 1 ppm had lower rates of dental caries and better oral health. Therefore, it can be inferred that Trendley Dean found healthy people with long lifespans in communities with water fluoride levels greater than 1 ppm.

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  • 15. 

    The new optimal level of fluoride in drinking water for ALL communities is _____ ppm

    Explanation
    The new optimal level of fluoride in drinking water for ALL communities is 0.7 ppm. This means that for all communities, it is recommended to have a fluoride concentration of 0.7 parts per million in their drinking water. This level has been determined as the ideal amount to promote dental health without causing any adverse effects.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 04, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 10, 2013
    Quiz Created by
    Klamberton
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