help solving these questions

[vish2004]

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hi,
anyone could plz give ans to the below questions & if posible explanations

1..The contact area that is MOST nearly circular is located on the crown of which of the following maxillary premolars?

A.Mesial of the first
B.Distal of the first
C.Mesial of the second
D.Distal of the second.


2. When the dentist examines the normal maxillary arch from a sagittal view
which of the following tooth inclinations can be observed?
a. posterior teeth are mesially inclined
b. anterior teeth are straight with no inclination
c. anterior teeth are distally inclied
d. posterior teeth are straight with no inclination
e. posterior teeth are distally inclined
I think its e

3. The incisal embrasure is smallest between which of the following 2 teeth
a. Max central incisors
b. Mand. Central incisors
c. Max Central incisors & lateral incisors
d. max lat. Incisor & canine
e. mand lat incisor & central incisor
is it a or b

4. From facial view, which of the following conditions is present on both the primary max first & second molars
a. a short root trunk
b. crowns resembling the max first molar
c. presence of 3 roots , 2 on the lingual and one on the facial
d. an indistinct facial developmental groove separating the 2 facial cusps
e. straighter, distally positioned root as opposed to the mesially positioned root
Is it a or d
Anyone plz explian

5. which of the following represents the total no. of cusps that are normally visible from the distal aspect of the crown of a max 1 molar
a. 1
b. 2
c. 3
d. 4
e. 5

6. which of the following primary grooves uniting in the distal pit on the occlusal surface of the mand 2 molar represents the one that normally has no counterpart in the distal pit of the 1 molar
a. distolingual
b. DF triangular
c. DL triangular
d. distal marginal
e. distal portion the central
Anyone explain

7. When viewed from the sagital plane & progressing anteriorly, the axial inclination of the ant teeth
a. remains vertical
b. inclines facially
c. ,, mesially
d. ,, distally
e. ,, lingually

I think its a

 

[ar78cx]

1 d
2 a
3 b
5 c
7 c

 

[vish2004]

thanks ar78cx

1 d
2 a
3 b
5 c
7 c

 

[Inshaa]

thanks ar78cx

how the answers for q #2 and 7 are same,can somone explain it,thx

 

[ar78cx]

4 - d
6 - a
According 2 my review papers.
good luck

 

[ar78cx]

sorry, 7- B

 

[vinita]

hi..
for question 5...how many cusps are seen from distal side of max. 1st molar.

i got the answers ...d..all cusps seen as the sequence of cusp acc to size is..ML>MB>DB>DL