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question in dental deck

Discussion in 'International Dental' started by dds_aspirant, Aug 2, 2006.

  1. dds_aspirant

    2+ Year Member

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    Hi,

    This is a question from 2006 dental decks in Anatomic sciences (PDL/G).

    Surrounding the root of each tooth is a specialised epithelium known as
    Answers:
    1) Connective tissue attachment
    2) periodontal ligament attachment
    3) Junctional Epithelium
    4) Nasmyth's membrane.

    Can any one clarify me the answer because the decks say it is the junctional epithelium and I feel it should be periodontal ligament attachment because junctional epithelium does not extends to the root of the tooth and periodontal ligament exists in the root portion of the tooth.
     
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  3. elto

    elto Senior Member
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    Hi:
    I think when they say: "surrounding", they mean like a "ring" around the root....It is just that the way they made the question is confusing....
     
  4. dds_aspirant

    2+ Year Member

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    But isnt the junctional epithelium in the sulcus that attaches the gingiva with the tooth through hemidesmosomes. Which is located above CEJ (cemento enamel junction) entirely on the enamel of a tooth. So how can it be surrounding the root?

    Thanks!

     
  5. rahmed

    rahmed SDN Angel
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    Ans Nos. 1 & 2 are not specialized epithelium; 4 by definition is something else, so the only choice (& the correct ans remaining) is 3.
     

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