Dental Classifications Quiz
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Questions and Answers

Which of the following statements is true regarding Class II and Class III dental problems?

  • Severe Class II problems are more prevalent than Class III problems.
  • Severe Class II problems are less prevalent than Class III problems. (correct)
  • Severe Class II problems do not reflect deviations from ideal occlusion.
  • Class III problems are less severe than Class II problems.

    • Severe Class II problems represent greater deviations from ideal occlusion than Class III problems.

    False

    What type of dental problems does Class II reflect?

    Transverse dental relationship problems

    Severe Class II problems are _____ prevalent compared to Class III problems.

    <p>less</p> Signup and view all the answers

    Match the dental class with its prevalence:

    <p>Class II = Less prevalent Class III = More prevalent Class I = Ideal occlusion</p> Signup and view all the answers

    What is the maximum percentage mentioned regarding Angle's normal affecting dentition?

    <p>30%</p> Signup and view all the answers

    Angle’s normal has a significant impact on occlusion.

    <p>True</p> Signup and view all the answers

    What aspect of dentition is mentioned as being affected?

    <p>occlusion</p> Signup and view all the answers

    At most, _____% have Angle’s normal that affects dentition.

    <p>30</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Angle's normal = A standard related to the alignment of teeth Dentition = The arrangement of teeth in the mouth Occlusion = The alignment of teeth when the jaws are closed</p> Signup and view all the answers

    What percentage of individuals had normal occlusions according to the NHANES III?

    <p>15%</p> Signup and view all the answers

    Class III occlusions represent a large proportion of the total according to NHANES III.

    <p>False</p> Signup and view all the answers

    What is the primary survey referenced in the orthodontic treatment discussion?

    <p>Third National Health and Nutrition Examination Survey (NHANES III)</p> Signup and view all the answers

    Approximately __% of the population is classified as having normal occlusions as per NHANES III.

    <p>15</p> Signup and view all the answers

    Match the following types of occlusions with their descriptions:

    <p>Normal occlusions = Approximately 15% of the population Class II = Most common type of occlusion Class III = Represents less than 1% of the population Class I = Ideal occlusion with no discrepancies</p> Signup and view all the answers

    What was considered an important predictor of survival and reproduction under primitive conditions?

    <p>Excellent function of the jaws and teeth</p> Signup and view all the answers

    Under primitive conditions, the ability to survive was solely dependent on social skills.

    <p>False</p> Signup and view all the answers

    What anatomical features are linked to survival and reproduction in primitive conditions?

    <p>jaws and teeth</p> Signup and view all the answers

    Under primitive conditions, _______ function of the jaws and teeth was an important predictor of survival.

    <p>excellent</p> Signup and view all the answers

    Match the following aspects of primitive life with their significance:

    <p>Jaws = Food acquisition Teeth = Defense against predators Survival = Reproduction ability Reproduction = Passing on genes</p> Signup and view all the answers

    What is the conclusion drawn from the evidence regarding orthodontic treatment and dental disease?

    <p>The evidence is unclear about its effectiveness in reducing dental disease.</p> Signup and view all the answers

    Orthodontic treatment has a clear and definitive benefit in preventing later dental diseases.

    <p>False</p> Signup and view all the answers

    What aspect of orthodontics has notably changed in the last 50 years?

    <p>Growth magnitudes and timing</p> Signup and view all the answers

    What factor makes it difficult to draw accurate conclusions about the effectiveness of orthodontic treatment?

    <p>The group of patients who have been studied.</p> Signup and view all the answers

    Clinical trials in orthodontics have remained unchanged for the past 50 years.

    <p>False</p> Signup and view all the answers

    The probability that an accurate conclusion can be drawn is dependent on the group of patients who have been __________.

    <p>studied</p> Signup and view all the answers

    What is the primary focus of the clinical trials mentioned in orthodontics?

    <p>Growth magnitudes and timing</p> Signup and view all the answers

    Orthodontic clinical trials have changed significantly in the last ______ years.

    <p>50</p> Signup and view all the answers

    Match the following statements about orthodontic treatment to their implications:

    <p>Lower evidence quality = Less reliability in conclusions Patient group variability = Challenges in drawing general conclusions Unclear effectiveness = Potential for misconceptions about benefits</p> Signup and view all the answers

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