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Discussion in 'NBDE Exams & Licensure Exams' started by elra, Dec 16, 2008.

  1. elra

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    Viewed from the occlusal, the basic coronal outline of a mandibular second premolar is

    1. square.
    2. circular.
    3. rhomboidal.
    4. pentagonal.
    5. rectangular.
     
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  3. elra

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    . Primary molars differ from permanent molars in that primary molars
    a. have flatter facial and lingual surfaces extending from the occlusal to the cervical ridge.
    b. have thicker enamel compared to the total bulk of crowns.
    c. have heavier root trunks.
    d. tend to have less pronounced cervical ridges.

    . Embrasures are the triangular spaces or areas between adjacent teeth where the approximating surfaces diverge from the contact area. Which of the following is NOT the location of an embrasure?
    a. occlusal or incisal from the contact area
    b. facial (buccal or lingual) from the contact area
    c. lingual from the contact area
    d. cervical from the contact area

    Viewed from the occlusal, the greatest faciolingual diameter of a permanent mandibular second molar is located in which third of the crown?
    a. distal
    b. apical
    c. middle
    d. mesial
    e. none of these
     
    #2 elra, Dec 16, 2008
    Last edited: Dec 16, 2008
  4. Truth seeker

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    answers

    in the 2nd question.......... al teeth 've 4 embrasures except mandibular centrals.....due to high contact areas n tight tooth to tooth contact. also there is no term cervical embasure....i've come across....thought logically it means gingival embrasure. pls post the answers.....
     
  5. Truth seeker

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    pentagonal
     
  6. Kash

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    Occlusal Outline of manibular 2nd premolar:-
    Its Square not pentagonal(i.e mandibular perm. 1st molar)
     
  7. gaya

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    it is square
     
  8. krasnodar

    krasnodar Junior Member
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    Its a squar But two of release exams the answer Was Pentagon
     
  9. gaya

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    Initially, the developing heart is
    a. induced by the notochord
    b. positioned posterior to the notochord
    c. positioned anterior to the prochordal plate
    d. between the prochordal plate and the notochord.
     
  10. gaya

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    Each of the following is charac of creatinine EXCEPT one. Which one is the exception?

    a) Freely filtered
    b) Slightly secreted
    c) Slightly reabsorbed
    d) produced endogenously at a constant rate
     
  11. krasnodar

    krasnodar Junior Member
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    Slightly reabsorbed
     
  12. elra

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    In a normal retrusive tooth contacting movement of the mandible, which tooth contacts the maxillary central incisor?

    1. Canine
    2. Lateral incisor
    3. Central incisor
    4. Central and lateral incisors
    5. None of the above
     
  13. krasnodar

    krasnodar Junior Member
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    None of the above.....Do you have more difficult Q
     
  14. Kash

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    Ans:- 5
    In retrusive mandibular movement there will be NO CONTACT whereas in protrusive mandibular movement the maxillary centrals contact mand. centrals and laterals
     
  15. d dimps

    d dimps d dimps
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    1)have flatter facial and lingual surfaces extending from the occlusal to the cervical ridge

    2)here the location of the embrasure is asked and cervically the gingival embrasure is present so i think there is no appropriate choice for this question.

    3)middle .
     
  16. Truth seeker

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    can anybody elaborate on this conflicting aspect , occulsal outline of mand 2nd pm , key for released papers say pentagonal, book says square .what is correct ?
     
  17. krasnodar

    krasnodar Junior Member
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    if release papers say Pentagon , don't argue with them , we know its wrong , but do what ever they want:rolleyes:
     
  18. krasnodar

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    a patient with symptoms of acute abcess with maxillary left incisor there is no clinical signs of decay or restoration .Radiographically which of foll. most likely be shown as cause of abcess -

    a dialceratio
    b concrescence
    c dens in dente
    d enamel pearls e agenesis
     
  19. gaya

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    dens in dente
     
  20. elra

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    ans
    1.a
    2.d
    3.d
     
  21. elra

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    Considering root formation, which of the following permanent teeth most readily lend themselves to rotation with extraction forceps during surgical removal? (a) Maxillary central incisor; (b) Mandibular lateral incisor; (c) Mandibular second premolar; (d) Mandibular canine; (e) Maxillary lateral incisor; (f) Maxillary first premolar; (g) Mandibular central incisor

    1. (a) and (b)
    2. (a) and (c)
    3. (b) and (e)
    4. (c) and (f)
    5. (d) and (f)
    6. (d) and (g)
    7. (e) and (g)
    The ans is given as (a) and (c)
    wht do you guys think?
    its a and e , right?
     
  22. krasnodar

    krasnodar Junior Member
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    Because a,c have round root but e the root is flatten mesiodestal
     
  23. krasnodar

    krasnodar Junior Member
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    Stability of TMJ joint is maintained by constant activity of the musclesthat pull cross the joint . These musclus are :

    posterior neck muscles
    suprahyiods
    infrahyoid
    depressors
    elevators
     
  24. elra

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    Which of the following marginal ridges have little or no contact in ideal centric and eccentric maxillomandibular contact relationships? (a) Distal of maxillary second premolar; (b) Distal of mandibular first premolar; (c) Distal of mandibular second premolar; (d) Mesial of maxillary canine; (e) Mesial of mandibular first premolar.

    1. (a) and (b)
    2. (a) and (d)
    3. (b), (c) and (d)
    4. (b), (c) and (e)
    5. (d) and (e)
    Ans is given as b, c,e.
    Isn't b,d,e?

    Someone plz help..
     
  25. elra

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    elevators??:confused:
     
  26. elra

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    In the absence of compensatory changes, a drop in blood pressure results from

    1. vasoconstriction.
    2. increased hematocrit.
    3. increased stroke volume.
    4. increased cardiac output.
    5. decreased venous return.
    Ans given as (4)
    Isn't 5??
     
  27. krasnodar

    krasnodar Junior Member
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    of course it must be 5
     
  28. Truth seeker

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    it doesnt specify lateral/ central incisor, does it ?

    in case of lateral incisor, dilaceration is common owing to persistent infection
    pls confirm the question n post the answer.
     
  29. Truth seeker

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    looking at the opp picture if CO falls , then PR increases, so the the answer given should be correct.
     
  30. oralcare

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    1) the microflora of healthy gingival sulcus is predominantly?
    a. spirochetes n yeast
    b. gm +facultative rods n spirochetes
    c. gm +ve fac cocci n filamentous bact
    d. gm -ve anerobic rods n fusobact
    e. gm -ve anerobic cocci n gm +ve facultaive cocci
     
  31. krasnodar

    krasnodar Junior Member
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    .

    gm -ve anerobic cocci n gm +ve facultaive cocci

    If is not helthy gingiva i think the answer will be D.
     
  32. krasnodar

    krasnodar Junior Member
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    Each of the folloing structure is normally exhibited by mandibular insisors EXCEPT

    cingula
    Mameleon
    Lingual fossa
    marginal ridge
    imbrication lines
     
  33. elra

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    lingual fossa??
     
  34. molar9

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  35. krasnodar

    krasnodar Junior Member
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  36. Kash

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  37. ramakrishna

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  38. daihhh

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    can you explain for why?
    thanks
     
  39. ngj

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    please can u direct me to someone who is selling kaplan notes for NBDE
     

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