doubts in DA

[asj]

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someone please give the answers for these qs!!

1. on the occlusal surface of a Y type mandibular second premolar, the Y pattern is formed by which of the following grooves?
a. mesial and distal
b. lingual and central
c. mesial, distal and facial
d. mesial, distal and central
e. facial, lingual and central

2. which of the following crown surfaces of teeth has a contact area that is theoretically located at the most cervical level?
a. mesial of tooth no 6
b. distal of tooth no 12
c. mesial of tooth no 3
d. distal of tooth no 1
e. mesial of tooth no 7

 

[colours]

someone please give the answers for these qs!!

1. on the occlusal surface of a Y type mandibular second premolar, the Y pattern is formed by which of the following grooves?
a. mesial and distal
b. lingual and central
c. mesial, distal and facial
d. mesial, distal and central
e. facial, lingual and central

2. which of the following crown surfaces of teeth has a contact area that is theoretically located at the most cervical level?
a. mesial of tooth no 6
b. distal of tooth no 12
c. mesial of tooth no 3
d. distal of tooth no 1
e. mesial of tooth no 7

1)b

 

[asj]

thanks colours!!
what abt the second qs? anyone????