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Da Help??

Discussion in 'International Dental' started by ridge, Nov 28, 2005.

  1. ridge

    ridge Senior Member
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    Hi i have few questions,anyone pl help with these.
    1)contact areas of anterior teeth are incisal to middle third in each of the following except:
    a) distal contact of max canine
    b) distal contact of mand lateral incisor
    c) mesial contact of mand lateral
    d) mesial contact of max lateral
    e) mesial contact of max canine

    2)in primary molars which crown portion is shorter occlusogingivally?
    a)mesial
    b)distal
    c)midfacial
    d)midlingual
    thanks
     
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  3. syk

    syk Senior Member
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    1)a
    2)b



     
  4. fido!

    fido! the ex-***!
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    1.a
    2.b
     
  5. ridge

    ridge Senior Member
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    thanks syk and prady.
     
  6. syk

    syk Senior Member
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    When viewed lingually,the permanent maxillary first molar has its lingual root apex in line with
    1. distolingual groove.
    2. distolingual line angle.
    3. distolingual cuspal eminence.
    4. height of the mesiolingual cusp.
    5. mesiodistal diameter midpoint.

    Ans given is 5.But cant it be 1) too?Pls do suggest.
    .
     
  7. syk

    syk Senior Member
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    Plz do ans...

     
  8. ridge

    ridge Senior Member
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  9. syk

    syk Senior Member
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    Thanks Ridge.


     
  10. ridge

    ridge Senior Member
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    syk check with explanation again,i made few changes but ans is right that is 5
    sorry for inconvenience.
     
  11. cheer_up

    cheer_up Senior Member
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    Hey Syk

    I'm just studying for the DA section now. Can you please explain how the answer for 1 is A? I thought that the distal height of contour (which forms a contact point) for max canine is in the junction of middle and incisal third? Thanks
     
  12. syk

    syk Senior Member
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    According to decks,the contact point on distal of maxillary canine is in the middle third.But i think in kaplan they have given junction of incisal and middle third.Its easy to remember the contact points for maxillary anterior teeth as given in decks as IJ,JM,JM(represents mesial and distal contact)for CI,LI,and canines respectively.

    I-iNCISAL THIRD
    J-junction of incisal and middle third
    M-Middle third.

    Hope this is clear.
    syk.
     
  13. cheer_up

    cheer_up Senior Member
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    Hi

    Sorry to ask you again. The distal contact point of max canine is either in the middle third or junction of incisal and middle third (depending on your source). So how is this an EXCEPTION to answer ridge's question 1? It's still within the incisal or middle third. Isn't this like the rest of the options?
    Thanks
     
  14. ridge

    ridge Senior Member
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  15. syk

    syk Senior Member
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    Ok,Let me make it very clear..the question says incisal to middle third which means contacts should be either in the incisal third ot the junction of incisal and middle third.This is the only option which has the contact in middle third I think you didnt get the question right!It does not mean contacts that lie within middle third.( its incisal to middle third.)
    All other ans given have their contacts either at incisal thirds or at the junction of incisal and middle third( which are all incisal to middle third.)

    I guess atleast now it will clear your doubt!

    Question...incisal to middle third means anything that lies above the middle third
     
  16. cheer_up

    cheer_up Senior Member
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    Hi syk

    Yeah, I get it now :D . I misread or rather misinterpreted the question. When the question said "incisal to middle third" I misinterpreted it as the range of distance from the incisal down to the middle third, rather than just "incisal to the middle third".

    Thanks a lot for clearing my doubt. Appreciate it :)
    Hope the explanation clears your doubt too, ridge.
     
  17. ridge

    ridge Senior Member
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  18. ridge

    ridge Senior Member
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    please answer the question:
    1)which muscle has important influence on mandible function though its not generally considered muscle of mastication

    omohyoid
    geniohyoid(is this the ans?)
    2)contact area most nearly circular is located on crown of which max premolar?
    mesail of first
    distal of first
    mesial of second
    distal of second
    please do ans!!!!!!!!
     
  19. drkum1

    drkum1 Member
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    1) geniohyoid
    2) distal of first

     

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