PDF Notes: Abnormalities

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    What are supernumerary teeth?

    Teeth present in addition to the normal series of deciduous and permanent teeth.

    What is hypodontia?

    Congenital absence of some teeth.

    How does microdontia differ from megadontia?

    Microdontia involves smaller than normal teeth, while megadontia involves larger than normal teeth.

    What causes dilaceration of teeth?

    Severe trauma during tooth development can lead to abnormal bends in the tooth.

    What is the prevalence of supernumerary teeth in permanent dentition?

    Varies between 0.1% and 3.8%.

    What is the main clinical issue caused by supernumerary teeth?

    They can delay or prevent the eruption of permanent teeth.

    What is the difference between hypodontia and anodontia?

    Hypodontia is the absence of some teeth, while anodontia is the total lack of teeth.

    What is taurodontism?

    A condition where the pulp chamber of a tooth is enlarged at the expense of the roots.

    What are the common associations with hypodontia?

    Cleft lip, cleft palate, and Down's syndrome.

    What is the significance of the timing of surgical removal of supernumerary teeth?

    Timing affects the potential for complications and the ease of eruption of adjacent teeth.

    What are the clinical features of invaginated teeth?

    Deep palatal pits and potential for carious destruction.

    What is the treatment for dental fluorosis?

    Includes bleaching, microabrasion, and veneers.

    What is the prevalence of microdontia in permanent dentition?

    Approximately 2.5%.

    What is the main concern with double teeth?

    They may lead to delayed eruption of permanent successors.

    What is the etiology of odontomes?

    Not fully understood, but may involve hereditary or local trauma.

    What is the primary treatment for acute herpetic gingivostomatitis?

    Supportive care and antiviral medications if necessary.

    What is the role of genetic factors in supernumerary teeth?

    They may increase the likelihood of occurrence in affected families.

    What is the difference between internal and external resorption?

    Internal resorption originates from the pulp, while external resorption affects the root surface.

    What are the common causes of delayed eruption?

    Ectopic positions, supernumeraries, and systemic conditions like rickets.

    What is the clinical significance of enamel pearls?

    They may predispose teeth to periodontal disease.

    What is the treatment for eruption cysts?

    Observation or surgical excision if they cause discomfort.

    What is the prevalence of taurodontism?

    Ranges from 0.25% to 11.3%.