anyone knows the ans to these q

[angel for 32]

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in a developing tooth,the boundary between pre-ameloblasts and pre-odontoblasts corresponds Best to the boundary between which of the following?
a.endocardium and myocardium
b.myo and epicardium
c.perimysium and epimysium
d.dermis and hypodermis
e.epidermis and dermis

a stab wound creating pnemothorax on the left side will usually result in collapse of which of the following?
a.left lung only
b.right lung only
c.both lungs
d.the rib cage on the left side
e.the left lung and pericardial sac

thanks

 

[indian bds]

in a developing tooth,the boundary between pre-ameloblasts and pre-odontoblasts corresponds Best to the boundary between which of the following?
a.endocardium and myocardium
b.myo and epicardium
c.perimysium and epimysium
d.dermis and hypodermis
e.epidermis and dermis

a stab wound creating pnemothorax on the left side will usually result in collapse of which of the following?
a.left lung only
b.right lung only
c.both lungs
d.the rib cage on the left side
e.the left lung and pericardial sac

thanks

answer to
q1
is epidermis &dermis

answer to q2>
is left lung only

 

[angel for 32]

thanks indian bds.

could u plz explain the reason?

 

[sunny06]

I think reason is ameloblast r derived fm ectoderm n odontoblast r derived fm mesoderm n same holds for epidermis n dermis.
2. ans is left lung only as each lung has its separate pelural cavity n stabbing on one side will cause air entry on one side pl. space n therefore will lead 2 collapse of one lung only.
Correct me if I am wrong.
Thank you.

 

[angel for 32]

thanks sunny06

 

[indian bds]

I think reason is ameloblast r derived fm ectoderm n odontoblast r derived fm mesoderm n same holds for epidermis n dermis.
2. ans is left lung only as each lung has its separate pelural cavity n stabbing on one side will cause air entry on one side pl. space n therefore will lead 2 collapse of one lung only.
Correct me if I am wrong.
Thank you.

ditto..this is the exact explanation i have in my mind👍

 

[angel for 32]

in a right lateral excursion,the mesiofacial cusp of the maxillary right first molar passes through which of the following grooves of the mandibular right first molar?
lingual
central
mesiofacial
distofacial

 

[angel for 32]

also,which cusp of primary mandibular 1st molar is best developed?
mesiolingual?

 

[dentalcn]

in a right lateral excursion,the mesiofacial cusp of the maxillary right first molar passes through which of the following grooves of the mandibular right first molar?
lingual
central
mesiofacial
distofacial

ans: lingual

 

[angel for 32]

thanks dentalcn

which of the following crown surfaces of the teeth has a contact area that is theoretically located at the most cervical level?
mesial of tooth#6
distal of tooth#12
mesial of tooth #3
distal of tooth #11
mesial of tooth#7

 

[manish19]

thanks dentalcn

which of the following crown surfaces of the teeth has a contact area that is theoretically located at the most cervical level?
mesial of tooth#6
distal of tooth#12
mesial of tooth #3
distal of tooth #11
mesial of tooth#7

i think its 1) mesial to #6 plz inform if wrong

 

[sweet1]

1. when u are looking from facial view which all embrassur u can see
1 mesial & distal
2.occlusal & cervial
3.facial & lingual

2. which tooth can we find 3 root
1 max 1st PM
2 max 2nd PM
3. mand 1st PM
4.mand 2nd PM

 

[swetha_dentist]

2. which tooth can we find 3 root
1 max 1st PM
correct me if i am wrong

 

[composit16]

1. when u are looking from facial view which all embrassur u can see
1 mesial & distal
2.occlusal & cervial
3.facial & lingual

ans 2.occlusal & cervial
b/w 2 teeth their are 4 emb.
occlusal , cervial ,facial & lingual
from facial surface u cant see lingual emb

 

[composit16]

please anyone knows cusp size largest to smallest in decidous molars ?
this is very confusing😕 .please help
thanks

 

[indian bds]

ans: lingual

answer is buccal
mesio lingual cusp passes through through lingual cusps

 

[1992Corolla]

correct, or mesiofacial. this groove s mesial to the distal buccal groove between the distal cusp and the DB cusp.

 

[HIM0098]

please anyone knows cusp size largest to smallest in decidous molars ?
this is very confusing😕 .please help
thanks

Primary Max first molars from largest to smallest:
MB , ML, DB , DL

Primary Max. second molars from largest to smallest:
ML, MB, DB , DL

Primary Max. second molars from sharpest to dullest:
DB, MB, ML, DL


Primary Man. first molars: books only mentioned that MB cusp is the Largest and longest cusp covering 2/3 of the occlusal view, but it is not wide Buccolingually. And the huge transvers ridge run from MB to ML cusp , will cause the occlusal table to be larger distal to it. So Larger distal fossa and small mesial fossa with NO central fossa

Primary Man. second molars from largest to smallest:
MB, ML, DB, DL
but the other books said that the 3 buccal cusp is of equal size, so it is hard to know which book to follow.


Primary Man. second molars from sharpest to dullest:
ML, DL, Distal Cusp, MB, DB

All is based on Fuller book.

 

[indian bds]

Primary Max first molars from largest to smallest:
MB , ML, DB , DL

Primary Man first molars: books only mentioned that MB cusp is the Largest and longest cusp covering 2/3 of the occlusal view, but it is not wide Buccolingually. And the huge transvers ridge run from MB to ML cusp , will cause the occlusal table to be larger distal to it. So Larger distal fossa and small mesial fossa with NO central fossa

to add to this
mesiolingual is sharpest and highest

 

[composit16]

thanks o lot HIM0098 and indian bds

 

[dentalcn]

answer is buccal
mesio lingual cusp passes through through lingual cusps

I know what you meant. But this is what I got from old paper...I am confusing too....

 

[HIM0098]

you most welcom comp16

can any one tell me which to choose:

If the tooth is fully formed but pitted an yellow, would the condition be Enamel Hypoplasio or Flurosis.. coz both of them fit the description.


Please tell me which one . Than you.

 

[FUTDR]

in a right lateral excursion,the mesiofacial cusp of the maxillary right first molar passes through which of the following grooves of the mandibular right first molar?
lingual
central
mesiofacial
distofacial

I believe it is the Lingual groove.

 

[DEAD END]

hi,,,
is there anyone from canada preparing for nbde or QP prog,,,just lemme know ,,,i m new here ,....wanted to know how n where to start with...
i 'll appreciate ur help

 

[indian bds]

I believe it is the Lingual groove.

for sure its buccal groove
its a realeased exam q
its mesiolingual cusp that goes through lingual groove in working movements
try to do this in your mouth..

 

[Tampali]

Hey guys....

Where do you guys get all those questions from? Where is the source.. ..

Tampali....

 

[composit16]

hi him0098
If the tooth is fully formed but pitted an yellow, would the condition be Enamel Hypoplasio or Flurosis.. coz both of them fit the description.

i think i will chose flurosis as in hypoplasia enamel in not fully formed. hypoplasia is defect in enamel matrix formation

 

[indian bds]

hi him0098
If the tooth is fully formed but pitted an yellow, would the condition be Enamel Hypoplasio or Flurosis.. coz both of them fit the description.

i think i will chose flurosis as in hypoplasia enamel in not fully formed. hypoplasia is defect in enamel matrix formation

among listed choices florosis or hypoplasia i'll too go for florosis in cas choice is hypocalcification it can be considered ..but for sure its not hypoplasia bcoz this is defect in enamel formation

 

[dentalcn]

for sure its buccal groove
its a realeased exam q
its mesiolingual cusp that goes through lingual groove in working movements
try to do this in your mouth..

I double checked the question today, the ans is Lingual!
Both mesiolingual cusp and mesiofacial cusp of maxillary right first molar pass through Lingual groove of the first mandibular molar, not bucal...

 

[HIM0098]

also,which cusp of primary mandibular 1st molar is best developed?
mesiolingual?

it is mesiobuccal. If you look at it from occlusal it take over the 2/3 of the occlusal table.

 

[dentalcn]

Primary Max first molars from largest to smallest:
MB , ML, DB , DL

Primary Max. second molars from largest to smallest:
ML, MB, DB , DL, Distal

Primary Max. second molars from sharpest to dullest:
DB, MB, ML, DL

Just wonder if Primary Max. second molar has "Distal cusp"???

 

[HIM0098]

Thanks for catching that mistake, I edite it..

Primary Max first molars from largest to smallest:
MB , ML, DB , DL

Primary Max. second molars from largest to smallest:
ML, MB, DB , DL, Distal

Primary Max. second molars from sharpest to dullest:
DB, MB, ML, DL

Just wonder if Primary Max. second molar has "Distal cusp"???