Dental Eruptions and Anomalies Quiz
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Questions and Answers

What defines delayed eruption of a tooth?

  • Delayed eruption occurs if the dental root is fully formed.
  • Eruption is delayed when emergence is not visible after 12 months past the expected time. (correct)
  • Emergence occurs before 12 months of the normal range.
  • Eruption can be considered delayed if it happens after the age of 5.

    • What is the typical age range for tooth emergence?

  • It varies according to gender and race. (correct)
  • From birth until 3 years of age.
  • From 6 months to 12 years of age.
  • It is consistent across all children regardless of background.

    • Which of the following could potentially delay tooth eruption?

  • Normal nutrient intake.
  • Early childhood oral hygiene practices.
  • Local or systemic conditions. (correct)
  • Regular dental check-ups.

    • At what point in root development does tooth emergence typically occur?

    <p>When the root is approximately two-thirds its final length.</p> Signup and view all the answers

    Which alteration is primarily categorized under developmental alterations of teeth?

    <p>Developmental alterations in the size of teeth.</p> Signup and view all the answers

    What are natal teeth?

    <p>Teeth that are present at birth</p> Signup and view all the answers

    What is the primary indication for removing prematurely erupted teeth?

    <p>If they pose a risk for aspiration</p> Signup and view all the answers

    Which teeth are most commonly seen as natal teeth?

    <p>Mandibular incisors</p> Signup and view all the answers

    What distinguishes impaction from embedding in dental terms?

    <p>Impaction is when teeth are obstructed by a physical barrier</p> Signup and view all the answers

    Which teeth are most frequently impacted in the permanent dentition?

    <p>Mandibular third molars</p> Signup and view all the answers

    What role does ankylosis play in dental impaction?

    <p>It contributes to the pathogenesis of impaction</p> Signup and view all the answers

    Which of the following best describes embedded teeth?

    <p>Teeth that lack eruptive force</p> Signup and view all the answers

    When is the use of radiographs most beneficial in managing natal and neonatal teeth?

    <p>To distinguish between deciduous and supernumerary teeth</p> Signup and view all the answers

    What can result from ankylosed teeth remaining in position?

    <p>Deficiency of the alveolar ridge</p> Signup and view all the answers

    Why do ankylosed teeth fail to respond to orthodontic forces?

    <p>They are fused to adjacent bone</p> Signup and view all the answers

    What is the recommended therapy for ankylosis of primary molars when a permanent successor is present?

    <p>Extraction at the proper time to allow spontaneous eruption</p> Signup and view all the answers

    In severe cases of ankylosis in primary teeth, what is considered the best treatment method?

    <p>Extraction and space maintenance</p> Signup and view all the answers

    What may a clinician attempt to do with luxated permanent teeth affected by ankylosis?

    <p>Use extraction forceps to break ankylosis</p> Signup and view all the answers

    What is a potential outcome hoped for after a luxation attempt on ankylosed teeth?

    <p>Formation of a new fibrous ligament</p> Signup and view all the answers

    What type of bite issues may occur with ankylosed teeth?

    <p>Lateral open bite and crossbite</p> Signup and view all the answers

    What is a common treatment for primary molars with ankylosis that do not have an underlying permanent tooth?

    <p>Prosthetic buildup to augment occlusal height</p> Signup and view all the answers

    What does hypodontia refer to in terms of dental development?

    <p>Lack of development of one or more teeth</p> Signup and view all the answers

    Which condition describes the development of supernumerary teeth?

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

    How many teeth must be absent for a diagnosis of oligodontia?

    <p>Six or more excluding third molars</p> Signup and view all the answers

    Which of the following is NOT a developmental alteration related to tooth structure?

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

    What condition is characterized by the total lack of tooth development?

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

    Which dental condition is specifically associated with a genetic influence on tooth development?

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

    What condition results in the absence of tooth development in patients with non-syndromic cleft lip or palate?

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

    Which alteration of teeth is characterized by the fusion of two or more teeth?

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

    What is the primary management approach for a patient with a single missing tooth due to hypodontia?

    <p>No treatment may be required.</p> Signup and view all the answers

    What is the most commonly observed site for single-tooth hyperdontia?

    <p>Maxillary incisor region</p> Signup and view all the answers

    Which of the following types of supernumerary teeth is located in the maxillary anterior region?

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

    What percentage of supernumerary teeth in the anterior maxilla typically do not erupt?

    <p>75%</p> Signup and view all the answers

    Which condition is positively correlated with hyperdontia?

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

    What typically describes the characteristics of supplemental supernumerary teeth?

    <p>Normal size and normal shape</p> Signup and view all the answers

    In which dental region do non-syndromic multiple supernumerary teeth most frequently occur?

    <p>Mandibular premolar region</p> Signup and view all the answers

    What term describes the abnormal positioning of normal teeth, such as a canine positioned between two premolars?

    <p>Dental transposition</p> Signup and view all the answers

    What is the most common dental issue associated with the presence of supernumerary teeth?

    <p>Delayed eruption of normal teeth</p> Signup and view all the answers

    What should be the standard treatment for supernumerary teeth during early mixed dentition?

    <p>Removal of the accessory tooth</p> Signup and view all the answers

    What is the consequence of late therapy for supernumerary teeth?

    <p>Displacement of teeth and malocclusion</p> Signup and view all the answers

    Which area of the mouth tends to experience more significant complications due to supernumerary teeth?

    <p>Anterior regions</p> Signup and view all the answers

    What should be monitored in patients diagnosed with supernumerary teeth?

    <p>Long-term tooth development</p> Signup and view all the answers

    What is a common misconception regarding the eruption of unerupted deciduous teeth?

    <p>Most will erupt spontaneously</p> Signup and view all the answers

    What outcome is likely if a supernumerary tooth is removed early?

    <p>Eruption of the adjacent normal teeth</p> Signup and view all the answers

    What might predeciduous supernumerary teeth represent in some natal and neonatal cases?

    <p>Prematurely erupted deciduous teeth</p> Signup and view all the answers

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