Dental Anatomy ....open To All..

[diantist]

A. Compare land marks of no.31 and no. 30, no. 31 dont have a
1.distal cusp
2.mb groove
3. both

B. in a normal dentition Embrasure r
1.lingual r greater
2.buccal r greater

C.When differentiating b/w maxillary and mandibular pre molars ... max premolars
1.have prominent lingual cusps
2.have a buccal ht of contour close to cervical 1/3
3.are wider bucolingually
4. all ABOVE

D. what is true of primary dentition
1.mandi central incisors erupt before max central incisors
2.max molars erupt after mand molars
3. both

E. Tubercle appears on which teeth
1. 8
2. 28
3. 14
4. all

F. root concavities on distal surface of
1. no.26,24,6
2. no.10,12,23
3.no.25,8,30

G.Which is a point angle
1. disto lingo incisal
2. mesio labio occ
3.mesio bucco lingual
4.disto bucco incisal

H. When differentiating b/w no 10 from 23 what is true
1. root groove on distal surface of 23 and not on 10
2. root of 23 wider buccolingually than mesiodistally
3. root of 10 is cone shaped , taperin gtowards lingual
4. 1,2
5. 1,2,3,

I.BULK OF TOOTH CONSITS OF1.pulp
2.crown
3.dentine
4.enamel
5.cementum

J.in normal occlusion which is least likely to develope fecets due to attrision 1.lingual mesial area of mand LI
2.Labioincisal area of max LI


K.A patient with wide ,notched teeth in mand left CI position , R/G reveals 28 teeth have erupted, 4 third molars not erupted... which condition exists
1.fusion
2.dens in dente
3.concrescence
4.gemination

L.IN maximal opening condyles r in
1.ant glenoid fossa
2.inferior or anterior to articular tubercle


M.outline of mand premolar is
1.square
2.diamond
3.pentagonal
(but mand PM have both option 1 (2nd )and 2(1st).. so what 2 do)


N. ch of mand LI
1. Incisal edge follows the arch curve in relation to FL axis
2. incisal edge lingual to root bisector

O.from the saggital plane and progressing ant the axial inclination of the ant teeth is
1.inclines lingually t/f

p.each PM has a mesial root depression except mand 2 nd PM T/F

Q.the sharp cusp like emminence on lingual surgace of max perm canine is called
1.lobe
2.tubercle
3.pericymata

R.ratio of major cusps of mand : max cusps is
5:4 t/f




.

---

Members don't see this ad.

 

[dat_student]

A. Compare land marks of no.31 and no. 30, no. 31 dont have a
1.distal cusp
2.mb groove
3. both

#30 = Mandibular Right 1st Molar
#31 = Mandibular Right 2nd Molar

#31 doesn't have the distal cusp. Because it only has 4 cusps we no longer have mesiobuccal (mb) & distobuccal grooves. Instead we have one buccal groove on the buccal side.

"3.both" seems to be the right answer

 

[minali]

i think answers should be-

A. Compare land marks of no.31 and no. 30, no. 31 dont have a
1.distal cusp
2.mb groove
3. both

B. in a normal dentition Embrasure r
1.lingual r greater
2.buccal r greater

C.When differentiating b/w maxillary and mandibular pre molars ... max premolars
1.have prominent lingual cusps
2.have a buccal ht of contour close to cervical 1/3
3.are wider bucolingually
4. all ABOVE

D. what is true of primary dentition
1.mandi central incisors erupt before max central incisors
2.max molars erupt after mand molars
3. both

E. Tubercle appears on which teeth
1. 8
2. 28
3. 14
4. all

F. root concavities on distal surface of
1. no.26,24,6not sure
2. no.10,12,23
3.no.25,8,30

G.Which is a point angle
1. disto lingo incisal
2. mesio labio occ
3.mesio bucco lingual
4.disto bucco incisal

H. When differentiating b/w no 10 from 23 what is true
1. root groove on distal surface of 23 and not on 10
2. root of 23 wider buccolingually than mesiodistally
3. root of 10 is cone shaped , taperin gtowards lingual
4. 1,2
5. 1,2,3,

correct me if i am wrong

 

[Dukie]

i think answers should be-






correct me if i am wrong

D is both

 

[tulaja]

hi i m new in usa,i live in NC and new to sdn also.
want to take part ASAp .need some guidence and inspiration.please tell me howmany hrs u guys are studing?and what r u refering other than dental decks
thanks
tulaja

 

[diantist]

THANKS ..act some ans in steele were not correct acc to me .. so some of my ans were rite....

 

[dat_student]

i think answers should be-

...
A. Compare land marks of no.31 and no. 30, no. 31 dont have a
1.distal cusp
2.mb groove
3. both
...

correct me if i am wrong

Can someone explain why "3.both" is not the correct answer ??!!

 

[RocknSun]

Can someone explain why "3.both" is not the correct answer ??!!

no 30 is mandibular 1st molar

no 31 is mandibular 2nd molar

30 has 5 cusps buccal .... three they r mesiobuccal distobuccal and distal
lingual 2 cusps ... mesiolingual and disto lingual
on the buccal surface two groves ... mesio buccal and disto buccal


31 has 4 cusps buccal .... two cusps they r mesiobuccal and disto buccal
lingual 2 cusps .... mesiolingual and disto lingual
on the buccal surface only buuccal groove


hope this helped u,

rocknsun

 

[dat_student]

no 30 is mandibular 1st molar

no 31 is mandibular 2nd molar

30 has 5 cusps buccal .... three they r mesiobuccal distobuccal and distal
lingual 2 cusps ... mesiolingual and disto lingual
on the buccal surface two groves ... mesio buccal and disto buccal


31 has 4 cusps buccal .... two cusps they r mesiobuccal and disto buccal
lingual 2 cusps .... mesiolingual and disto lingual
on the buccal surface only buuccal groove


hope this helped u,

rocknsun

rocksun,
thanks so much for the explanation. So, is the "buccal groove" considered to be the same as the "mesiobuccal groove"??? For #30 I see mb (mesiobuccal groove); for #31 I see b (buccal groove) Thanks again

 

[Ruchig]

Can anyone help me.........
Q Which of the the following do striated M, skeletal M and cardia M have in common?
A. Hyperplasia of these elements is common
B. They have a limited capacity to regenerate
C. Hypertrophy is a common response to injury.
D. They need a constant high O2 concentration to function.

One of the Q papers has B as answer and other has D. I am confused as both of them are right.

 

[minali]

I.BULK OF TOOTH CONSITS OF1.pulp
2.crown
3.dentine
4.enamel
5.cementum

J.in normal occlusion which is least likely to develope fecets due to attrision 1.lingual mesial area of mand LI
2.Labioincisal area of max LI


K.A patient with wide ,notched teeth in mand left CI position , R/G reveals 28 teeth have erupted, 4 third molars not erupted... which condition exists
1.fusion
2.dens in dente
3.concrescence
4.gemination not sure

L.IN maximal opening condyles r in
1.ant glenoid fossa
2.inferior or anterior to articular tubercle


M.outline of mand premolar is
1.square there should be specification as which premolar and which surface
2.diamond
3.pentagonal
(but mand PM have both option 1 (2nd )and 2(1st).. so what 2 do)


N. ch of mand LI
1. Incisal edge follows the arch curve in relation to FL axis
2. incisal edge lingual to root bisector

O.from the saggital plane and progressing ant the axial inclination of the ant teeth is
1.inclines lingually t/f

p.each PM has a mesial root depression except mand 2 nd PM T/Fnot sure about max. 2nd pm

Q.the sharp cusp like emminence on lingual surgace of max perm canine is called
1.lobe
2.tubercle
3.pericymata

R.ratio of major cusps of mand : max cusps is
5:4 t/f


pls correct me if i am wrong.

.

 

[rythm]

Can anyone help me.........
Q Which of the the following do striated M, skeletal M and cardia M have in common?
A. Hyperplasia of these elements is common
B. They have a limited capacity to regenerate
C. Hypertrophy is a common response to injury.
D. They need a constant high O2 concentration to function.

One of the Q papers has B as answer and other has D. I am confused as both of them are right.

i think B is right answer...correct me if i m wrong
as they can work in normal or compromised O2 conc.

 

[Mach band]

Can someone explain why "3.both" is not the correct answer ??!!

You are correct. 3 should be the choice. The two grooves on the #30 are called mesiobuccal and distobuccal grooves while the one on the #31 is called buccal groove. I believe the reason for the "mesio" being there is to distinguish it from the distobuccal groove. Both can be seen buccally. Also, the groove indeed is located towards the mesial half while on #31, it's almost right on the middle line.