confusing Qs about NBDE II,PLEASE help!!!

[Avani]

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an endodontically treated permanent mandibular first
molar has incipient lesions on its mesia and distal
surfaces. during previous treatment, a minimal
amount of tooth structure was removed, the
appropriate treatment for this tooth is
a MOD amalgam
B MOD cast gold inlay
C MOD cast gold onlay(i think this is right)
D 3/4
E full crown

what's shim stock?used to evaluating centric
occlusion on a newly placed onlay restoration?

when using an occlusal separator(what's it?),a
practitioner can expect which of the following types
of TMJ disorders ro respongd most favorably?
a chronic dislocation
b muscle spasm
c capsular fibrosis
d unilateral condylar hyperplasia

 

[Avani]

one more Q:

severity of the course of a periapical infection depends on the:
1 resistance of the host
2 virulence of the organism
3 number of organisms present.

1,and 2 for sure.
how about 3?

 

[aphistis]

one more Q:

severity of the course of a periapical infection depends on the:
1 resistance of the host
2 virulence of the organism
3 number of organisms present.

1,and 2 for sure.
how about 3?

Definitely #3 as well. Which would be more troublesome, a single bacterium at the periapex or 500 million? The more bacteria are present, the more toxins are being secreted, antigens being presented, immune factors recruited, etc. etc. etc.

 

[Momani]

please help with this question
which race has least incidence for oral cancer
thanks

 

[Avani]

Definitely #3 as well. Which would be more troublesome, a single bacterium at the periapex or 500 million? The more bacteria are present, the more toxins are being secreted, antigens being presented, immune factors recruited, etc. etc. etc.

i cannot agree with you more~~!!
thanks for your reply.

 

[Avani]

please help with this question
which race has least incidence for oral cancer
thanks

what i know is that in U.S,african americans are at highest risk.

 

[Avani]

one more Q:

which of the following compounds ia a ganglionic blocking agent?
1 atropine
2 hexamethonium
3 succinylcholine


??????😕😕

 

[blueskydentist]

one more Q:

which of the following compounds ia a ganglionic blocking agent?
1 atropine
2 hexamethonium
3 succinylcholine


??????😕😕

The ans is succinylcholine because it acts on muscle type nicotinic receptors.

FYI ganglionic blocking agents are group of agents having as their major action the interruption of neural transmission at nicotinic receptors on postganglionic autonomic neurons.

Atropine-competitive antagonist at m ACH receptors
hexamethonium-has no effect on the muscarinic acetylcholine receptors nor the nicotinic acetylcholine receptors http://en.wikipedia.org/wiki/Neuromuscular_junction

 

[Momani]

what i know is that in U.S,african americans are at highest risk.

thank you so much 👍

 

[anaerobe]

one more Q:

which of the following compounds ia a ganglionic blocking agent?
1 atropine
2 hexamethonium
3 succinylcholine


??????😕😕

Hexamethonium is a neuronal nAch (NN) receptor antagonist which acts in autonomic gangliaby binding mostly in or on the NN receptor, and not the acetylcholine binding site itself. It has no effect on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system, nor the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.

 

[Avani]

Hexamethonium is a neuronal nAch (NN) receptor antagonist which acts in autonomic gangliaby binding mostly in or on the NN receptor, and not the acetylcholine binding site itself. It has no effect on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system, nor the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.

yes,that's why i am confused.
all of the tree choices are antagonists.

 

[Avani]

The ans is succinylcholine because it acts on muscle type nicotinic receptors.

FYI ganglionic blocking agents are group of agents having as their major action the interruption of neural transmission at nicotinic receptors on postganglionic autonomic neurons.

Atropine-competitive antagonist at m ACH receptors
hexamethonium-has no effect on the muscarinic acetylcholine receptors nor the nicotinic acetylcholine receptors

thanks for your reply.
Ganglionic blocking agent: an agent that impairs the passage of impulses in autonomic ganglia (http://www.wrongdiagnosis.com/medical/ganglionic_blocking_agent.htm)

if so,why only choose c?🙁🙁

 

[blueskydentist]

Hi

I am sorry but now i think the ans is hexamethonium because Hexamethonium is a neuronal nAch (NN) receptor antagonist which acts in autonomic gangliaby binding mostly in or on the NN receptor, and not the acetylcholine binding site itself. It has no effect on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system, nor the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.

And as avani said
Ganglionic blocking agent: an agent that impairs the passage of impulses in autonomic ganglia

 

[anaerobe]

yes,that's why i am confused.
all of the tree choices are antagonists.

Yes, all of them are cholinergic antagonists BUT they act on different locations.
Atropine is an antimuscarinic agent which acts on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system.
Succinylcholine is a neuromuscular blocking agent which acts on the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.
Ganglionic blocker such as hexamethonium specifically acts on the nicotinic receptors of the autonomic ganglia. This drug shows no selectivity toward the parasympathetic or sympathetic ganglia (PRE-GANGLIONICALLY), thus, this drug blocks the entire output of the autonomic nervous system at the nicotinic receptors, hence, it is called ganglionic blocking agent.
Hope this answers your question. Goodluck...

 

[Avani]

Yes, all of them are cholinergic antagonists BUT they act on different locations.
Atropine is an antimuscarinic agent which acts on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system.
Succinylcholine is a neuromuscular blocking agent which acts on the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.
Ganglionic blocker such as hexamethonium specifically acts on the nicotinic receptors of the autonomic ganglia. This drug shows no selectivity toward the parasympathetic or sympathetic ganglia (PRE-GANGLIONICALLY), thus, this drug blocks the entire output of the autonomic nervous system at the nicotinic receptors, hence, it is called ganglionic blocking agent.
Hope this answers your question. Goodluck...

thank you very much!🙂
i thought all the agents that block the neurotransmission on the autonomic nerves were ganglionic blocking agents.
am i wrong？

 

[Avani]

Hi

I am sorry but now i think the ans is hexamethonium because Hexamethonium is a neuronal nAch (NN) receptor antagonist which acts in autonomic gangliaby binding mostly in or on the NN receptor, and not the acetylcholine binding site itself. It has no effect on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system, nor the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.

And as avani said
Ganglionic blocking agent: an agent that impairs the passage of impulses in autonomic ganglia

thanks for your reply!

i think both atropine and hexamethonium are ganglionic blocking agents,because they both impair the passage of impulses in autonomic ganglia.
am i wrong?

 

[blueskydentist]

thanks for your reply!

i think both atropine and hexamethonium are ganglionic blocking agents,because they both impair the passage of impulses in autonomic ganglia.
am i wrong?

I think the explanation by anaerobe is perfect:

Yes, all of them are cholinergic antagonists BUT they act on different locations.
Atropine is an antimuscarinic agent which acts on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system.
Succinylcholine is a neuromuscular blocking agent which acts on the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.
Ganglionic blocker such as hexamethonium specifically acts on the nicotinic receptors of the autonomic ganglia. This drug shows no selectivity toward the parasympathetic or sympathetic ganglia (PRE-GANGLIONICALLY), thus, this drug blocks the entire output of the autonomic nervous system at the nicotinic receptors, hence, it is called ganglionic blocking agent.


Carefully read it again and pay attention to the site of action.Ganglionic blockers block nicotinic receptors at postganglionic autonomic neuron.Only Hexamethonium does that.

hope it helps

 

[Avani]

I think the explanation by anaerobe is perfect:

Yes, all of them are cholinergic antagonists BUT they act on different locations.
Atropine is an antimuscarinic agent which acts on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system.
Succinylcholine is a neuromuscular blocking agent which acts on the nicotinic acetylcholine receptors at the neuromuscular junction (NM) that are responsible for skeletal muscle motor response.
Ganglionic blocker such as hexamethonium specifically acts on the nicotinic receptors of the autonomic ganglia. This drug shows no selectivity toward the parasympathetic or sympathetic ganglia (PRE-GANGLIONICALLY), thus, this drug blocks the entire output of the autonomic nervous system at the nicotinic receptors, hence, it is called ganglionic blocking agent.


Carefully read it again and pay attention to the site of action.Ganglionic blockers block nicotinic receptors at postganglionic autonomic neuron.Only Hexamethonium does that.

hope it helps

got it!
i think i was really confused.thank you!

 

[Avani]

the parents of a 4 years girl are distressed for their girl's thumb-sucking habit has resulted in an anterior open bite of 3 mm.
what should that parents do?
1 stop worrying about the habit.
2 try to stop the habit.

in the webpage http://www.drashouri.com/open-bite.html

it says:"It is quite clear, then, that the problem is best corrected early.
The best cure is to prevent the open bite from occurring in the first place. You can gently eliminate thumb sucking and reduce the dependence on the pacifier. If the treatment is delayed, the patient may end up with poor speech and an unattractive smile. "

but the answer is 1.
why?😕😕

 

[Avani]

two statements，which is right.
1 periapical radiolucencies are detectable only when there is internal or external erosion of the bone cortex.
2 pathosis confined to the cancellous portion of the bone can be determined rediographically.👍

😕😕

 

[Avani]

anybody helps me please～～～🙁🙁

 

[docsmiley]

anybody helps me please～～～🙁🙁

hi..
cortex has to be eroded for radiographic evidence...
and for the previous question, i remember reading somewhere in the decks that thumb sucking may not be contributory to an anterior open bite..other factors are more important..

 

[Avani]

hi..
cortex has to be eroded for radiographic evidence...
and for the previous question, i remember reading somewhere in the decks that thumb sucking may not be contributory to an anterior open bite..other factors are more important..

thank you very much！！！

 

[Avani]

a practitioner pickles gold alloy restorations by
heating them to redness and plunging them into an
acid bath.this precedure can result in which of the
following?
c warpage of the restoration?
d surface foughness of the restoration.
key is c.why? how could warpage happen?

one more question~~~~😕😕😕

 

[Avani]

hi..
cortex has to be eroded for radiographic evidence...
and for the previous question, i remember reading somewhere in the decks that thumb sucking may not be contributory to an anterior open bite..other factors are more important..

but in periradial lesion,there exsists radiographic evidence without cortex erosion.......😕

 

[shuntyman]

avani good going ........... when r u planning to give exam???

 

[Doctor Dj]

CAN YOU GUYS PLEASE HELP WITH THIS QUESTION:
A blow in the right body of the mandible causes a fracture where else :
A.right condole, B. left condyle, C. angle of mandible D. ramus.
THANK YOU

WHAT KINNDA OF BLOW ?

 

[Momani]

WHAT KINNDA OF BLOW ?

pathetic😡

 

[Doctor Dj]

pathetic😡

and this comming from somebody that is always asking and never answering

 

[Avani]

pathetic😡

different blows will cause different fractures,a vertical blow will cause an ipsilateral fracture,while a horizontal blow may cause a bilateral fracture.

a light blow may cause a fracture in the weakest part while a very heavy one will cause a fracture in the impacted point.

i hope it helps.

 

[Avani]

and this comming from somebody that is always asking and never answering

are you talking about me?

 

[Momani]

different blows will cause different fractures,a vertical blow will cause an ipsilateral fracture,while a horizontal blow may cause a bilateral fracture.

a light blow may cause a fracture in the weakest part while a very heavy one will cause a fracture in the impacted point.

i hope it helps.

THANK YOU FOR YOUR RESPOND.I PASSED THE TEST ALREADY,FEEL SO RELAXED.😴

 

[Momani]

and this comming from somebody that is always asking and never answering

THAT IS FUNNY,I ACTUALLY NEVER SEEN ANY USEFUL POST BY YOU.WORK HARDER

 

[Doctor Dj]

THAT IS FUNNY,I ACTUALLY NEVER SEEN ANY USEFUL POST BY YOU.WORK HARDER

yeah not like yours bro!

here is momani:

"i have a question x 57"


i can't beat that you are right.

 

[Avani]

the scoring of the palatal bar on the cast is
blablabla.....
D limited to the areas of soft displaceable tissue

why?and, what is the scoring ?😕😕

 

[Avani]

anybody who puts his/her questions here is welcome!~~🙂🙂

 

[Avani]

nobody answers me？😕😕😕😕

 

[Doctor Dj]

nobody answers me？😕😕😕😕

maybe momani will !

 

[Momani]

maybe momani will !

very funny 👎

 

[Doctor Dj]

im taking the test pretty soon

and want to revive this thread

sooooo.... here goes my question

which of these antibiotics cannot be given intra orally
a) penicillin v
b) penicillin g
c) methicillin
d) amoxicillin

ans c

can somebody explain me why ?😕😕😕

 

[Mojanjoon]

i think A is correct. should be the same side.
correct me anyone?

CAN YOU GUYS PLEASE HELP WITH THIS QUESTION:
A blow in the right body of the mandible causes a fracture where else :
A.right condole, B. left condyle, C. angle of mandible D. ramus.
THANK YOU

 

[Mojanjoon]

which of the following is the endocrine involvement that is related to jaw deformity:
Acromegaly
Paget’s disease
Cherubisim
Albrite’s
I think the answer is paget’s but I am not sure


which sement is the easiest to remover after procedure:

Zinc Phosphate is this correct??

if there is an article and if you want to underatand the definition of Dependent and independent, which part of the article you look:
Introduction
Method
Body
Result
Summary
Answer: I DON”T KNOW

plzzzzzzzz help

 

[Mojanjoon]

why people are not answering here?
this supposed to be a helpfull site to help each other.
why no one cares here????

which of the following is the endocrine involvement that is related to jaw deformity:
Acromegaly
Paget’s disease
Cherubisim
Albrite’s
I think the answer is paget’s but I am not sure


which sement is the easiest to remover after procedure:

Zinc Phosphate is this correct??

if there is an article and if you want to underatand the definition of Dependent and independent, which part of the article you look:
Introduction
Method
Body
Result
Summary
Answer: I DON”T KNOW

plzzzzzzzz help

 

[vgp]

acromegaly is ans for 1st one...

 

[vgp]

ans for ur last post in another thread...epidermoid carcinoma is common in oral cavity...
stains dont produce ---increase in value....

why people are not answering here?
this supposed to be a helpfull site to help each other.
why no one cares here????

 

[Mojanjoon]

thank u🙂
value or hue?
can't increase stain?
u think its value?
i was more toward hue?

can u answer the rest plz.
anyone confirm?

acromegaly is ans for 1st one...

 

[Mojanjoon]

thank u🙂
value or hue?
can't increase stain?
u think its value?
i was more toward hue?

can u answer the rest plz.
anyone confirm?

acromegaly is ans for 1st one...

 

[zsy_lzy]

just wonder,,

how many days does nbde part 2 take??

i am going to schedule the part 2 test for next year.

thanks..

 

[Avani]

im taking the test pretty soon

and want to revive this thread

sooooo.... here goes my question

which of these antibiotics cannot be given intra orally
a) penicillin v
b) penicillin g
c) methicillin
d) amoxicillin

ans c

can somebody explain me why ?😕😕😕

methicillin is toxic to humans.
and,penicillin g is unstable in the hydrochloric acid of the stomach
so,both b and c🙁
correct me if i am wrong.

 

[Avani]

thank u🙂
value or hue?
can't increase stain?
u think its value?
i was more toward hue?

can u answer the rest plz.
anyone confirm?

whats your question?

 

[Mojanjoon]

which can not increase stain?

hue or value??

whats your question?