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several questions related to Dental NBDE I

Discussion in 'NBDE Exams & Licensure Exams' started by stickto, Jun 15, 2008.

  1. stickto

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    [FONT=Times New Roman, serif]Could someone help answer the following questions from 2000 NBDE Dental part.
    [FONT=Times New Roman, serif]114. The most convex incisal angle on anterior teeth is found on which angle of which incisor?.


    [FONT=Times New Roman, serif]A distoincisal, Maxillary lateral.
    [FONT=Times New Roman, serif]B distoincisal, Mandibular lateral.
    [FONT=Times New Roman, serif]C distoincisal, Mandibular central.
    [FONT=Times New Roman, serif]D mesioincisal, Maxillary lateral.
    [FONT=Times New Roman, serif]E mesioincisal, Maxillary central.


    [FONT=Times New Roman, serif]117. Each of the following is a condition usually found in a mutually protected occlusion, in the normal upright position, EXCEPT one. Which one is the exception?.


    [FONT=Times New Roman, serif]A None of the posterior teeth contact on the non-working side when the mandible moves laterally..
    [FONT=Times New Roman, serif]B Anterior teeth disclude all posterior teeth in protrusive movement..
    [FONT=Times New Roman, serif]C Codyles are in their most superoanterior position in closure..
    [FONT=Times New Roman, serif]D Anterior teeth contact move heavily than the posterior teeth..
    [FONT=Times New Roman, serif]E Axial loading of occlusal forces occurs in closure..


    [FONT=Times New Roman, serif]119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the.


    [FONT=Times New Roman, serif]A mesial fossa of the first premolar.
    [FONT=Times New Roman, serif]B central fossa of the maxillary first molar.
    [FONT=Times New Roman, serif]C mesial fossa of the maxillary second molar.
    [FONT=Times New Roman, serif]D embrasure between maxillary first and second molars.
    [FONT=Times New Roman, serif]E embrausre between the maxillary second premolar and first molar..


    [FONT=Times New Roman, serif]121. When the dentist examines the normal maxillary arch from a sagittal view, which of the following tooth inclination can be observed?.


    [FONT=Times New Roman, serif]A Posterior teeth are mesially inclined..
    [FONT=Times New Roman, serif]B Anterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]C Anterior teeth are distally inclined..
    [FONT=Times New Roman, serif]D Posterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]E Posterior teeth are distally inclined..


    [FONT=Times New Roman, serif]129. From the occlusal aspect of a maxillary first molar, normally the.


    [FONT=Times New Roman, serif]A DF line angle is acute..
    [FONT=Times New Roman, serif]B MF line angle is obtuse..
    [FONT=Times New Roman, serif]C ML line angle is obtuse..
    [FONT=Times New Roman, serif]D crown outline is rapezoidal..
    [FONT=Times New Roman, serif]E crown is wider mesiodistally than faciolingually..




    [FONT=Times New Roman, serif]132. The primary mandibular second molar normally exhibits which of the following characteristics?.


    [FONT=Times New Roman, serif]A One transverse ridge.
    [FONT=Times New Roman, serif]B Two occlusal pits.
    [FONT=Times New Roman, serif]C Three roots.
    [FONT=Times New Roman, serif]D Three occlusal fossae.
    [FONT=Times New Roman, serif]E Four cusps.


    [FONT=Times New Roman, serif]138. In normal occlusion, which of the following is LEAST likely to develop facets due to attrition?.


    [FONT=Times New Roman, serif]A linguoincisal area of a maxillary central incisor..
    [FONT=Times New Roman, serif]B Lingual mesial area of the mandibular lateral incisor.
    [FONT=Times New Roman, serif]C Facial side of the cusp of a mandibular canine.
    [FONT=Times New Roman, serif]D Lingual side of the cusp of a maxillary canine.
    [FONT=Times New Roman, serif]E Labioincisal area of a maxillary lateral incisor.


    [FONT=Times New Roman, serif]146. From a facial view, which of the following conditions is present on both the primary maxillary first and second molars?.


    [FONT=Times New Roman, serif]A A short root trunk.
    [FONT=Times New Roman, serif]B Crowns resembling the maxillary first molar.
    [FONT=Times New Roman, serif]C Presence of three roots, two on the lingual and one on the facial.
    [FONT=Times New Roman, serif]D An indistinct facial development groove separating the two facial cusps.
    [FONT=Times New Roman, serif]E Straighter, distally positioned root as opposed to the mesially positioned root.


    [FONT=Times New Roman, serif]151. Which of the following primary grooves uniting in the distal pit on the occlusal surfaces of the mandibular second molar represents the one that normally has no counterpart in the distal pit of the first molar?.


    [FONT=Times New Roman, serif]A Distolingual.
    [FONT=Times New Roman, serif]B DF triangular.
    [FONT=Times New Roman, serif]C DL triangular.
    [FONT=Times New Roman, serif]D Distal marginal.
    [FONT=Times New Roman, serif]E Distal portion of the cantral.


    [FONT=Times New Roman, serif]155. When viewed from the sagittal plane and progressing anteriorly, the axial inclination of the anterior teeth.


    [FONT=Times New Roman, serif]A remains vertical.
    [FONT=Times New Roman, serif]B inclines facially.
    [FONT=Times New Roman, serif]C inclines mesially.
    [FONT=Times New Roman, serif]D inclines distally.
    [FONT=Times New Roman, serif]E inclines lingually.


    [FONT=Times New Roman, serif]156. In a Class II intercuspal relation, the facial cusp tip of a maxillary first premolar could oppose which of the following?.


    [FONT=Times New Roman, serif]A Distofacial cusp ridge of a mandibular first premolar.
    [FONT=Times New Roman, serif]B Distofacial cusp ridge of a mandibular second premolar.
    [FONT=Times New Roman, serif]C Facial embrasure between mandibular canine and first premolar.
    [FONT=Times New Roman, serif]D Facial embrasure between mandibular first and second premolar.
    [FONT=Times New Roman, serif]E Mesiofacial cusp ridge of a mesiobuccal cusp of a mandibular first molar.




    [FONT=Times New Roman, serif]162. stability of the temporomandibular joint is maintained by constant activity of the muscles that pull across the joint. These muscles are primarily the.


    [FONT=Times New Roman, serif]A. posterior neck muscles.
    [FONT=Times New Roman, serif]B suprahyoids.
    [FONT=Times New Roman, serif]C infrahyoids.
    [FONT=Times New Roman, serif]D depressors.
    [FONT=Times New Roman, serif]E elevators.


    [FONT=Times New Roman, serif]182. The movement in the upper compartment of the temporomandibular joint is rotation and translation. The movement in the lower compartment is translation..


    [FONT=Times New Roman, serif]A Both statements are True.
    [FONT=Times New Roman, serif]B Both are false.
    [FONT=Times New Roman, serif]C First is true, Second is false.
    [FONT=Times New Roman, serif]D First is false, Second is true.




    [FONT=Times New Roman, serif]183. In maximal opening, the condyles are positioned .


    [FONT=Times New Roman, serif]A in the anterior glenoid fossa.
    [FONT=Times New Roman, serif]B in the root of the glenoid fossa.
    [FONT=Times New Roman, serif]C in the posterior glenoid area.
    [FONT=Times New Roman, serif]D just posterior to the articular tubercle.
    [FONT=Times New Roman, serif]E either inferior to the articular tubercle, or anterior to it.




    [FONT=Times New Roman, serif]184. Which of the following Best describes the general outline of the crown of a mandibular first premolar in an occlusal view?.
    [FONT=Times New Roman, serif]A Square.
    [FONT=Times New Roman, serif]B Hex.
    [FONT=Times New Roman, serif]C Pentagonal.
    [FONT=Times New Roman, serif]D Triangular.
    [FONT=Times New Roman, serif]E Diamond-shaped.


    [FONT=Times New Roman, serif]185. In which portion of a maxillary canine might one expect to find the WIDEST faciolingual measurement of its pulp?.


    [FONT=Times New Roman, serif]A Apical third of root.
    [FONT=Times New Roman, serif]B Incisal third of crown.
    [FONT=Times New Roman, serif]C middle third of crown.
    [FONT=Times New Roman, serif]D cervical third of root.


    [FONT=Times New Roman, serif]194. From an occlusal view, posterior contact areas are normally located.
    [FONT=Times New Roman, serif]A facial to the tooth center.
    [FONT=Times New Roman, serif]B slightly to the mesial.
    [FONT=Times New Roman, serif]C slightly to the lingual.
    [FONT=Times New Roman, serif]D exactly in the center of the teeth.




    [FONT=Times New Roman, serif]198. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the.
    [FONT=Times New Roman, serif]A shorter the cusps of the posterior teeth.
    [FONT=Times New Roman, serif]B greater the intercondylar distance.
    [FONT=Times New Roman, serif]C lesser the intercondylar distance.
    [FONT=Times New Roman, serif]D more acute the bennett angle.
    [FONT=Times New Roman, serif]E more obtuse the Bennett angle.




    [FONT=Times New Roman, serif]200. What approximate percentage of the total buccolingual dimension of a posterior tooth does the occlusal table represent?.


    [FONT=Times New Roman, serif]A 30 -40.
    [FONT=Times New Roman, serif]B 40 -50.
    [FONT=Times New Roman, serif]C 50 -60.
    [FONT=Times New Roman, serif]D 60 -70.
    [FONT=Times New Roman, serif]E 100.
     
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  3. shuntyman

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    [FONT=Times New Roman, serif]Could someone help answer the following questions from 2000 NBDE Dental part.
    [FONT=Times New Roman, serif]114. The most convex incisal angle on anterior teeth is found on which angle of which incisor?.


    [FONT=Times New Roman, serif]A distoincisal, Maxillary lateral.
    [FONT=Times New Roman, serif]B distoincisal, Mandibular lateral.
    [FONT=Times New Roman, serif]C distoincisal, Mandibular central.
    [FONT=Times New Roman, serif]D mesioincisal, Maxillary lateral.
    [FONT=Times New Roman, serif]E mesioincisal, Maxillary central.


    [FONT=Times New Roman, serif]117. Each of the following is a condition usually found in a mutually protected occlusion, in the normal upright position, EXCEPT one. Which one is the exception?.


    [FONT=Times New Roman, serif]A None of the posterior teeth contact on the non-working side when the mandible moves laterally..
    [FONT=Times New Roman, serif]B Anterior teeth disclude all posterior teeth in protrusive movement..
    [FONT=Times New Roman, serif]C Codyles are in their most superoanterior position in closure..
    [FONT=Times New Roman, serif]D Anterior teeth contact move heavily than the posterior teeth..
    [FONT=Times New Roman, serif]E Axial loading of occlusal forces occurs in closure..


    [FONT=Times New Roman, serif]119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the.


    [FONT=Times New Roman, serif]A mesial fossa of the first premolar.
    [FONT=Times New Roman, serif]B central fossa of the maxillary first molar.
    [FONT=Times New Roman, serif]C mesial fossa of the maxillary second molar.
    [FONT=Times New Roman, serif]D embrasure between maxillary first and second molars.
    [FONT=Times New Roman, serif]E embrausre between the maxillary second premolar and first molar..


    [FONT=Times New Roman, serif]121. When the dentist examines the normal maxillary arch from a sagittal view, which of the following tooth inclination can be observed?.


    [FONT=Times New Roman, serif]A Posterior teeth are mesially inclined..
    [FONT=Times New Roman, serif]B Anterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]C Anterior teeth are distally inclined..
    [FONT=Times New Roman, serif]D Posterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]E Posterior teeth are distally inclined..


    [FONT=Times New Roman, serif]129. From the occlusal aspect of a maxillary first molar, normally the.


    [FONT=Times New Roman, serif]A DF line angle is acute..
    [FONT=Times New Roman, serif]B MF line angle is obtuse..
    [FONT=Times New Roman, serif]C ML line angle is obtuse..
    [FONT=Times New Roman, serif]D crown outline is rapezoidal..
    [FONT=Times New Roman, serif]E crown is wider mesiodistally than faciolingually..




    [FONT=Times New Roman, serif]132. The primary mandibular second molar normally exhibits which of the following characteristics?.


    [FONT=Times New Roman, serif]A One transverse ridge.
    [FONT=Times New Roman, serif]B Two occlusal pits.
    [FONT=Times New Roman, serif]C Three roots.
    [FONT=Times New Roman, serif]D Three occlusal fossae.
    [FONT=Times New Roman, serif]E Four cusps.


    [FONT=Times New Roman, serif]138. In normal occlusion, which of the following is LEAST likely to develop facets due to attrition?.


    [FONT=Times New Roman, serif]A linguoincisal area of a maxillary central incisor..
    [FONT=Times New Roman, serif]B Lingual mesial area of the mandibular lateral incisor.
    [FONT=Times New Roman, serif]C Facial side of the cusp of a mandibular canine.
    [FONT=Times New Roman, serif]D Lingual side of the cusp of a maxillary canine.
    [FONT=Times New Roman, serif]E Labioincisal area of a maxillary lateral incisor.


    [FONT=Times New Roman, serif]146. From a facial view, which of the following conditions is present on both the primary maxillary first and second molars?.


    [FONT=Times New Roman, serif]A A short root trunk.
    [FONT=Times New Roman, serif]B Crowns resembling the maxillary first molar.
    [FONT=Times New Roman, serif]C Presence of three roots, two on the lingual and one on the facial.
    [FONT=Times New Roman, serif]D An indistinct facial development groove separating the two facial cusps.
    [FONT=Times New Roman, serif]E Straighter, distally positioned root as opposed to the mesially positioned root.


    [FONT=Times New Roman, serif]151. Which of the following primary grooves uniting in the distal pit on the occlusal surfaces of the mandibular second molar represents the one that normally has no counterpart in the distal pit of the first molar?.


    [FONT=Times New Roman, serif]A Distolingual.
    [FONT=Times New Roman, serif]B DF triangular.
    [FONT=Times New Roman, serif]C DL triangular.
    [FONT=Times New Roman, serif]D Distal marginal.
    [FONT=Times New Roman, serif]E Distal portion of the cantral.


    [FONT=Times New Roman, serif]155. When viewed from the sagittal plane and progressing anteriorly, the axial inclination of the anterior teeth.


    [FONT=Times New Roman, serif]A remains vertical.
    [FONT=Times New Roman, serif]B inclines facially.
    [FONT=Times New Roman, serif]C inclines mesially.
    [FONT=Times New Roman, serif]D inclines distally.
    [FONT=Times New Roman, serif]E inclines lingually.


    [FONT=Times New Roman, serif]156. In a Class II intercuspal relation, the facial cusp tip of a maxillary first premolar could oppose which of the following?.


    [FONT=Times New Roman, serif]A Distofacial cusp ridge of a mandibular first premolar.
    [FONT=Times New Roman, serif]B Distofacial cusp ridge of a mandibular second premolar.
    [FONT=Times New Roman, serif]C Facial embrasure between mandibular canine and first premolar.
    [FONT=Times New Roman, serif]D Facial embrasure between mandibular first and second premolar.
    [FONT=Times New Roman, serif]E Mesiofacial cusp ridge of a mesiobuccal cusp of a mandibular first molar.




    [FONT=Times New Roman, serif]162. stability of the temporomandibular joint is maintained by constant activity of the muscles that pull across the joint. These muscles are primarily the.


    [FONT=Times New Roman, serif]A. posterior neck muscles.
    [FONT=Times New Roman, serif]B suprahyoids.
    [FONT=Times New Roman, serif]C infrahyoids.
    [FONT=Times New Roman, serif]D depressors.
    [FONT=Times New Roman, serif]E elevators.


    [FONT=Times New Roman, serif]182. The movement in the upper compartment of the temporomandibular joint is rotation and translation. The movement in the lower compartment is translation..


    [FONT=Times New Roman, serif]A Both statements are True.
    [FONT=Times New Roman, serif]B Both are false, .
    [FONT=Times New Roman, serif]C First is true, Second is false.
    [FONT=Times New Roman, serif]D First is false, Second is true.




    [FONT=Times New Roman, serif]183. In maximal opening, the condyles are positioned .


    [FONT=Times New Roman, serif]A in the anterior glenoid fossa.
    [FONT=Times New Roman, serif]B in the root of the glenoid fossa.
    [FONT=Times New Roman, serif]C in the posterior glenoid area.
    [FONT=Times New Roman, serif]D just posterior to the articular tubercle.
    [FONT=Times New Roman, serif]E either inferior to the articular tubercle, or anterior to it.




    [FONT=Times New Roman, serif]184. Which of the following Best describes the general outline of the crown of a mandibular first premolar in an occlusal view?.
    [FONT=Times New Roman, serif]A Square.
    [FONT=Times New Roman, serif]B Hex.
    [FONT=Times New Roman, serif]C Pentagonal.
    [FONT=Times New Roman, serif]D Triangular.
    [FONT=Times New Roman, serif]E Diamond-shaped.


    [FONT=Times New Roman, serif]185. In which portion of a maxillary canine might one expect to find the WIDEST faciolingual measurement of its pulp?.


    [FONT=Times New Roman, serif]A Apical third of root.
    [FONT=Times New Roman, serif]B Incisal third of crown.
    [FONT=Times New Roman, serif]C middle third of crown.
    [FONT=Times New Roman, serif]D cervical third of root.


    [FONT=Times New Roman, serif]194. From an occlusal view, posterior contact areas are normally located.
    [FONT=Times New Roman, serif]A facial to the tooth center.
    [FONT=Times New Roman, serif]B slightly to the mesial.
    [FONT=Times New Roman, serif]C slightly to the lingual.
    [FONT=Times New Roman, serif]D exactly in the center of the teeth.




    [FONT=Times New Roman, serif]198. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the.
    [FONT=Times New Roman, serif]A shorter the cusps of the posterior teeth.
    [FONT=Times New Roman, serif]B greater the intercondylar distance.
    [FONT=Times New Roman, serif]C lesser the intercondylar distance.
    [FONT=Times New Roman, serif]D more acute the bennett angle.
    [FONT=Times New Roman, serif]E more obtuse the Bennett angle.




    [FONT=Times New Roman, serif]200. What approximate percentage of the total buccolingual dimension of a posterior tooth does the occlusal table represent?.


    [FONT=Times New Roman, serif]A 30 -40.
    [FONT=Times New Roman, serif]B 40 -50.
    [FONT=Times New Roman, serif]C 50 -60.
    [FONT=Times New Roman, serif]D 60 -70.
    [FONT=Times New Roman, serif]E 100.
     
    #2 shuntyman, Jun 15, 2008
    Last edited: Jun 16, 2008
  4. passiondentistr

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    plzz correct me guys...
     
    #3 passiondentistr, Jun 15, 2008
    Last edited: Jun 15, 2008
  5. stickto

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    119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the


    A mesial fossa of the first premolar
    B central fossa of the maxillary first molar
    C mesial fossa of the maxillary second molar
    D embrasure between maxillary first and second molars
    E embrausre between the maxillary second premolar and first molar.


    121. When the dentist examines the normal maxillary arch from a sagittal view, which of the following tooth inclination can be observed?


    A Posterior teeth are mesially inclined.
    B Anterior teeth are straight with no inclination.
    C Anterior teeth are distally inclined.
    D Posterior teeth are straight with no inclination.
    E Posterior teeth are distally inclined.


    184. Which of the following Best describes the general outline of the crown of a mandibular first premolar in an occlusal view?
    A Square
    B Hex
    C Pentagonal
    D Triangular
    E Diamond-shaped

    please let me know if I am wrong
     
  6. passiondentistr

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    184. Which of the following Best describes the general outline of the crown of a mandibular first premolar in an occlusal view?
    A Square
    B Hex
    C Pentagonal
    D Triangular
    E Diamond-shaped

    please let me know if I am wrong[/quote

    hey ya u r right about this

    n abt the 121 , I guess the mand post r distally inclined..
    plzz guys confirm this
     
    #5 passiondentistr, Jun 16, 2008
    Last edited: Jun 16, 2008
  7. stickto

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    119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the


    A mesial fossa of the first premolar
    B central fossa of the maxillary first molar
    C mesial fossa of the maxillary second molar
    D embrasure between maxillary first and second molars
    E embrausre between the maxillary second premolar and first molar.


    answer E is in the class I occlusion .
     
    #6 stickto, Jun 16, 2008
    Last edited: Jun 16, 2008
  8. stickto

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    121. When the dentist examines the normal maxillary arch from a sagittal view, which of the following tooth inclination can be observed?


    A Posterior teeth are mesially inclined.

    [FONT=Times New Roman, serif]B Anterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]C Anterior teeth are distally inclined..
    [FONT=Times New Roman, serif]D Posterior teeth are straight with no inclination..
    [FONT=Times New Roman, serif]E Posterior teeth are distally inclined..


    I check the wheelers , It is answer A.
     
  9. passiondentistr

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    hey thanks good u confirmed it.. but r u sure abt class 3 q ?
     
  10. stickto

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    there is a classIII picture in the FIRST AID page 653. Maybe you can check. thanks!
     
  11. passiondentistr

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    ya n still I go wit my option choice E
    as in class 3 , the 1mand molar is mesially placed to max 1 molar itself, so max 2 molar will not come into the picture.

    let m know if u agree wit this
     
  12. passiondentistr

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    162. stability of the temporomandibular joint is maintained by constant activity of the muscles that pull across the joint. These muscles are primarily the


    A. posterior neck muscles

    [FONT=Times New Roman, serif]B suprahyoids.
    [FONT=Times New Roman, serif]C infrahyoids.
    [FONT=Times New Roman, serif]D depressors.
    [FONT=Times New Roman, serif]E elevators.

    n this is right ??
     
  13. shuntyman

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    162. stability of the temporomandibular joint is maintained by constant activity of the muscles that pull across the joint. These muscles are primarily the


    A. posterior neck muscles

    [FONT=Times New Roman, serif]B suprahyoids.
    [FONT=Times New Roman, serif]C infrahyoids.
    D depressors
    [FONT=Times New Roman, serif]E elevators


    .
    119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the


    A mesial fossa of the first premolar
    B central fossa of the maxillary first molar
    C mesial fossa of the maxillary second molar
    D embrasure between maxillary first and second molars
    E embrausre between the maxillary second premolar and first molar.
    [FONT=Times New Roman, serif]


    .
     
  14. stickto

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    some pictures about malocclusion
    http://www.kiferdentalspecialist.com/braces-malocclusion.php

    119. In a Class III malocclusion, the mesiofacial cusp of the mandibular first molar occludes in the


    A mesial fossa of the first premolar
    B central fossa of the maxillary first molar
    C mesial fossa of the maxillary second premolar
    D embrasure between maxillary first and second molars
    E embrausre between the maxillary second premolar and first molar.

    passiondentistr and shuntyman,I think there is some typing mistake in the question,hehe~~

    sorry for confusing!
    thanks for discussing!

    and I still stick to my answer C.Will you agree?

     
  15. superstar2008

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    hey sticko,
    is this the final answer? pls go ahead and fix the correct one for the cl 3 occl ques. thanx.
     

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