Developmental Anomalies of Teeth

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Questions and Answers

What is the etiology of Dentitia Tarda?

  • Early loss of deciduous teeth
  • Cretinism (correct)
  • Hereditary
  • Over-secretion of thyroid and thymus glands

What is the result of early loss of deciduous teeth?

  • Impaction of permanent teeth (correct)
  • Delayed eruption of permanent teeth
  • Malposition of permanent teeth
  • Premature eruption of permanent teeth

What is the term for the failure of one or more permanent teeth to develop?

  • Anodontia (correct)
  • Hypergonadism
  • Cleidocranial dysostosis
  • Ankylosis

What is the term for the persistence of entire or groups of deciduous dentition?

<p>Persistence of deciduous teeth (C)</p> Signup and view all the answers

What is the etiology of premature eruption of deciduous teeth?

<p>Over-secretion of thyroid and thymus glands (C)</p> Signup and view all the answers

What is the term for a tooth whose eruption is prevented by adjacent teeth or bone?

<p>Impacted tooth (D)</p> Signup and view all the answers

What is the classification of impacted maxillary cuspid where the impaction occurs in the alveolar process?

<p>Class IV (D)</p> Signup and view all the answers

Which of the following anomalies in shape and form results in a single large tooth?

<p>Fusion (C)</p> Signup and view all the answers

What is the term for an anomalous tubercle or cusp in the center of the occlusal surface of a premolar?

<p>Talon's cusp (D)</p> Signup and view all the answers

What is the term for the characteristic notch-shaped deformity of the teeth seen in congenital syphilis?

<p>Notched incisor (D)</p> Signup and view all the answers

What is the term for supernumerary roots, which are most common in mandibular canines, premolars, and molars?

<p>Accessory roots (C)</p> Signup and view all the answers

What is the term for the condition where one or more teeth are missing?

<p>Anodontia (D)</p> Signup and view all the answers

What is the most common tooth to be missing in the permanent dentition?

<p>Third molar (A)</p> Signup and view all the answers

What is the term for the development of extra teeth beyond the normal number?

<p>Supernumerary teeth (C)</p> Signup and view all the answers

What is the term for the development of teeth that are smaller than normal?

<p>Microdontia (A)</p> Signup and view all the answers

What is the complication that can arise from supernumerary teeth?

<p>All of the above (D)</p> Signup and view all the answers

What is the etiology of supernumerary teeth?

<p>All of the above (D)</p> Signup and view all the answers

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