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Few More Da Questions??

cutedoc12

Full Member
10+ Year Member
Mar 31, 2007
142
0
  1. Pre-Dental
    > wat are dentine islands?? in wich teeth are they commonly present??

    >can mand 1st premolar hav a central pit/fossa???

    >largest cusp of prim mand 1st molar??? ML is sharpest and longest...is it largest too??

    >is there any diff bw organic n inorganic content of compact bone n spongy bone??

    >wat s dryopithecus pattern of tooth??

    >do these terms exist or they r jst distractors....thecodont, acrodont??

    >wat s dis V-shaped incipient enamel extension on a crown in bifurcated areas of multirooted teeth??
     

    ProbedSulcus

    New Member
    10+ Year Member
    Dec 1, 2007
    10
    0
    1. Dental Student
      > wat are dentine islands?? in wich teeth are they commonly present??

      >can mand 1st premolar hav a central pit/fossa???

      >largest cusp of prim mand 1st molar??? ML is sharpest and longest...is it largest too??

      >is there any diff bw organic n inorganic content of compact bone n spongy bone??

      >wat s dryopithecus pattern of tooth??

      >do these terms exist or they r jst distractors....thecodont, acrodont??

      >wat s dis V-shaped incipient enamel extension on a crown in bifurcated areas of multirooted teeth??



      What's with the spelling?
       
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      drrohit81

      New Member
      10+ Year Member
      Apr 28, 2006
      56
      0
      1. Dental Student
        pleurodont :Applied to the condition in which the teeth are attached by one side to the inner surface of the bones of the jaw.

        acrodont :Applied to the condition in which the teeth are fused to the bones.


        thecodont: Applied to the condition in which the teeth are set in sockets in the bones.
         

        docsmiley

        newbie
        10+ Year Member
        Feb 3, 2007
        313
        0
        1. Medical Student
          pls help me wit these questions..
          1.movement of working side condyle in lateral excursion..
          a.rotation around saggital axis
          b.rotation on horizontal axis
          c.rotation and translation both...
          i feel its only rotation on saggital axis..but answer is diff..its both rot and translation...

          2.during lateral excursion, mb cusp of mx 1st molar moves across..what of lower 1st molar...
          a.lingual groove
          b.central groove.
          c.facial grooove.
          i feel its central groove, but ans is lingual groove...


          dentin islands are seen in canine..
           

          Lidopaine82

          Senior Member
          10+ Year Member
          7+ Year Member
          Feb 14, 2006
          570
          1
          Ohio
          1. Dentist
            pls help me wit these questions..
            1.movement of working side condyle in lateral excursion..
            a.rotation around saggital axis
            b.rotation on horizontal axis
            c.rotation and translation both...
            i feel its only rotation on saggital axis..but answer is diff..its both rot and translation...

            2.during lateral excursion, mb cusp of mx 1st molar moves across..what of lower 1st molar...
            a.lingual groove
            b.central groove.
            c.facial grooove.
            i feel its central groove, but ans is lingual groove...


            dentin islands are seen in canine..




            1. If there is Bennett movement, then the best answer would be C. The working condyle will rotate around the horizontal axis due to canine guidance, and if there is Bennett movement there will also be translation.

            2. the answer is facial groove. The MB cusp cant go through any other groove. The ML cusp of the MAX 1st molar goes through the central groove on protrusion and the lingual groove on working lateral excursion. Maybe you meant the question the state ML cusp rather than MB.
             
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