any1 ans these ques plz!!

[faith n hope]

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I m taking the exam next month and I m bit confused with these questions..
ans and explanations pls!!
it would be much appriciated...

1. on crown of maxilary molars, the comtact area that is the SMALLEST is found on which surface of which molar???
A. Mesial of first
B. Distal of second(only confused about these two optins)

2. which of the following maxillary teeth would most likely exhibit an anomalous two roothed specimen??
A. centaral Incisor
B. lateral Incisor
C. Canine
D. First premolar
E. Second premolar

3. In posterior cross bite relationship, which aspects of which cusps contact in a working movements??

A. mandibular facial outer
B. Maxilary lingual outer
c. Mandibular lingual outer
D. Mandibular lingual Inner

4. which of the following occlusal relations results in one maxillary tooth contacting 2 mandibular teeth in the itercuspal position??
A. balalced occlusion
B. cusp fossae-cusp fossae
C. cusp fossae - cusp marignal rigde
D. Canine protected occlusion
E. Anterion protected occlusion

Thanks🙂

 

[faith n hope]

around 50 people went through this link but none of them replied...
i don't think its that tough..
somebody, pls reply these questions........
PPPLLLSSS.....

 

[passiondentistr]

Plzz correct m if wrong..
1.mesial of first
Since the molars become shorter, moving from first to this molar, the contacts tend to appear more toward the center of the proximal surfaces.

2. central incisor. [ this is the rarest anamoly , but it can happen .n we know when canines r compared ,it is always the mand canine wit 2 roots]

3.outer inclines of mand lingual [c]

4.cusp fossa - cusp marginal ridge

 

[shuntyman]

3. In posterior cross bite relationship, which aspects of which cusps contact in a working movements??

A. mandibular facial outer
B. Maxilary lingual outer
c. Mandibular lingual outer
D. Mandibular lingual Inner

it shud b D mand inner lingual inclines bcoz workin movement occurs towards the side mand is moving nd in crossbite lingual inner inclines contacts maxi inner buccal inclines

correct me if m wrong.....🙂

 

[passiondentistr]

hey but the options U hv choosen here , if I am not worng r for the normal occlusion not for the post crossbite.
correct m again if I am wrong ...

 

[shuntyman]

this question is same as 1996 paper 125 th question........... but herein the movement and bite r reverse so ans will b same as 2 negative makes a positive..........
so ans is inner incline of mand lingual

correct me if m wrong.....

 

[faith n hope]

Plzz correct m if wrong..
1.mesial of first
Since the molars become shorter, moving from first to this molar, the contacts tend to appear more toward the center of the proximal surfaces.

2. central incisor. [ this is the rarest anamoly , but it can happen .n we know when canines r compared ,it is always the mand canine wit 2 roots]

3.outer inclines of mand lingual [c]

4.cusp fossa - cusp marginal ridge

thanks for answering these questions, passiondentist..
but in
que 1. the first molar contacts 2nd PM mesially, doesn't that make any difference to the size of contact point???

que 4. why not cusp fossae - cusp fossae ???

 

[faith n hope]

this question is same as 1996 paper 125 th question........... but herein the movement and bite r reverse so ans will b same as 2 negative makes a positive..........
so ans is inner incline of mand lingual

correct me if m wrong.....

thanks for the reply shuntyman,
but I think passiondentist is right here(que 3)...as the lingual of mandi and buccal of maxi cusp r supporting...the outer inclines of mandi lingual will contact the inner inclines of maxi buccal cusps in working side movement..........