Morphology of Individual Primary Teeth
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Questions and Answers

What is the primary purpose of studying tooth morphology?

  • To identify the number of roots in each tooth
  • To understand the color of the teeth
  • To determine the composition of the enamel
  • To guide cavity preparations and restoration procedures (correct)
  • Why is an accurate chronology of primary tooth calcification clinically significant?

  • To guide restorative procedures for children (correct)
  • To identify the number of cusps in each tooth
  • To determine the strength of the teeth
  • To explain tetracycline pigmentation
  • What is the characteristic feature of the incisal edge of maxillary central incisors?

  • Curved with sharp mesioincisal angle and rounded distoincisal angle
  • Straight with sharp mesioincisal angle and sharp distoincisal angle (correct)
  • Straight with rounded mesioincisal angle and rounded distoincisal angle
  • Curved with rounded mesioincisal angle and sharp distoincisal angle
  • What should be considered when performing cavity preparations on primary teeth?

    <p>The thickness of enamel and dentin</p> Signup and view all the answers

    Why is it important to have a good knowledge of tooth morphology for restoring natural contours of deciduous teeth?

    <p>To achieve proper function</p> Signup and view all the answers

    About 85% of natal or neonatal teeth are (______) primary incisors, and only small percentages are supernumerary teeth.

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

    Early eruption of natal and neonatal teeth is (teeth present at birth) and neonatal teeth (teeth that erupt during the first 30 days) prevalence is low.

    <p>Natal teeth are</p> Signup and view all the answers

    Most studies suggest that the etiology for the premature eruption or the appearance of natal and neonatal teeth is (______).

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

    A radiograph should be made to determine the amount of root development and the relationship of a prematurely erupted tooth to its adjacent teeth. One of the parents can hold the x-ray film in the infant’s mouth during the (______).

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

    Most prematurely erupted teeth (immature type) are (______) because of limited root development.

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

    Prematurely erupted teeth are hypermobile due to limited root development.

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

    Natal and neonatal molars are common.

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

    The etiology for the early eruption of primary teeth seems to be familial, due to inheritance as an autosomal dominant trait.

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

    A radiograph is not necessary to determine the amount of root development and the relationship of a prematurely erupted tooth to its adjacent teeth.

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

    Natal and neonatal teeth are prevalent in the majority of infants.

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

    Study Notes

    Studying Tooth Morphology

    • Primary purpose of studying tooth morphology is to understand tooth development and structure.

    Primary Tooth Calcification

    • Accurate chronology of primary tooth calcification is clinically significant because it helps in determining the age of a child and identifying potential developmental anomalies.

    Characteristics of Maxillary Central Incisors

    • Characteristic feature of the incisal edge of maxillary central incisors is not specified in the text, but it is important to note that the morphology of these teeth is crucial in restoring their natural contours.

    Restoring Deciduous Teeth

    • Good knowledge of tooth morphology is essential for restoring natural contours of deciduous teeth, especially when performing cavity preparations.

    Natal and Neonatal Teeth

    • About 85% of natal or neonatal teeth are primary incisors, with small percentages being supernumerary teeth.
    • Early eruption of natal and neonatal teeth is prevalence is low.
    • Natal teeth are teeth present at birth, while neonatal teeth erupt during the first 30 days.
    • Most studies suggest that the etiology for the premature eruption or appearance of natal and neonatal teeth is unknown.

    Radiographs for Prematurely Erupted Teeth

    • A radiograph should be made to determine the amount of root development and the relationship of a prematurely erupted tooth to its adjacent teeth.
    • One of the parents can hold the x-ray film in the infant's mouth during the radiograph.

    Characteristics of Prematurely Erupted Teeth

    • Most prematurely erupted teeth (immature type) are hypermobile due to limited root development.
    • Prematurely erupted teeth are not well-rooted, making them prone to mobility.

    Natal and Neonatal Molars

    • Natal and neonatal molars are not common.

    Etiology of Early Eruption

    • The etiology for the early eruption of primary teeth seems to be familial, due to inheritance as an autosomal dominant trait.

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    Description

    Learn about the shape, configuration, and parts of primary teeth, essential for performing dental procedures. Understanding tooth morphology is crucial for cavity preparations and restoration of natural contours and morphology of deciduous teeth.

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