NBDE part II question

[funstuff]

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can someone try to help answer questions:

Daily cleaning of root surface by the patient has been shown to
a. cause root sensitivity
bcause root resorption
c. stimbulates epi attachment
d. allow remineralization of root surface

i think it is d

 

[Azieb]

Drink rum! just kidding!. Do old exams, and don't study the day before. What you didn't learn in your weeks/months of preparation time, you will not learn it the day before.

Rock on!

Thanks !!!🙂

 

[ddsmph]

In determining the posterior limit of a
maxillary denture base, which of the
following is on the posterior border?

n Hamular notch.
n Hamular process
n Fovea palatine
n Vibrating line
n Pterygomandibular raphe

*posterior limit extends to junctions of movable and immovable tissue, coincides with the line drawn through the hamular notches and appx 2mm posterior to the foveae palatine -- so i would say hamular notch, but i have seen V line as an answer.

 

[colmillo]

In determining the posterior limit of a
maxillary denture base, which of the
following is on the posterior border?

n Hamular notch.
n Hamular process
n Fovea palatine
n Vibrating line
n Pterygomandibular raphe

*posterior limit extends to junctions of movable and immovable tissue, coincides with the line drawn through the hamular notches and appx 2mm posterior to the foveae palatine -- so i would say hamular notch, but i have seen V line as an answer.

Can anyone explain to me what's root submersion.., please do not give the
dental desk explanation. What's the Tx. and the Flap that need to be performed if there're any..
and also a conical shaped probing
Thanks....

 

[uabsfm]

a female child of 4 yr of age lives inthe are where sh drinks water with less that 0.3 ppm of fluoride , how much additional systemic sodium flouride should this child ingest?

none
0.25mg
0.50mg
1.1mg
2.2mg

 

[sunshine5]

a female child of 4 yr of age lives inthe are where sh drinks water with less that 0.3 ppm of fluoride , how much additional systemic sodium flouride should this child ingest?

none
0.25mg
0.50mg
1.1mg
2.2mg

3-6yr old with <.3 will need .5mgs of systemic fluoride

 

[uabsfm]

3-6yr old with <.3 will need .5mgs of systemic fluoride

the ans is 2.2 mg , I dont know how come this is the ans?
if anyone knows plz share

 

[Azieb]

I agree with sunshine5


it's 0.5mg....

look at the FL dosage rule...there is no way u would give 2.2mg...i think the answer might be a typo...

the ans is 2.2 mg , I dont know how come this is the ans?
if anyone knows plz share

 

[narihari]

I agree with sunshine5


it's 0.5mg....

look at the FL dosage rule...there is no way u would give 2.2mg...i think the answer might be a typo...

http://www.mayoclinic.com/health/drug-information/DR601265

 

[knyt]

a female child of 4 yr of age lives in the are where sh drinks water with less that 0.3 ppm of fluoride , how much additional systemic sodium flouride should this child ingest?

none
0.25mg
0.50mg
1.1mg
2.2mg

Hi guys, it's Sodium Fluoride (NaF) not just fluoride alone. NaF dissolves to give Na+ & F-. For every mg of NaF you would get 0.5mg of F. Either way I think the answer given is still wrong because out of 2.2mg of NaF you'll get approximately 1mg of F-, and in this case since the child is only 4 year of age and the water is < 0.3 ppm, you should only supplement 0.5mg. I think the answer should be 1.1mg of NaF. Please correct me if I'm wrong.

 

[uabsfm]

Hi guys, it's Sodium Fluoride (NaF) not just fluoride alone. NaF dissolves to give Na+ & F-. For every mg of NaF you would get 0.5mg of F. Either way I think the answer given is still wrong because out of 2.2mg of NaF you'll get approximately 1mg of F-, and in this case since the child is only 4 year of age and the water is < 0.3 ppm, you should only supplement 0.5mg. I think the answer should be 1.1mg of NaF. Please correct me if I'm wrong.

I agree with you, I was thinking tht because it is sodium flouride may be the ans is differernt but I was not sure how come it is?
still in the ans key it says 2.2mg
as it says child require 1.0mg of flouride ion per day and to maintain that 2.2 mg NAF is needed
but I think you are right
thanx for explanation

there is one more similar qs that 9yr old child lives in area where water has 0.5 ppm flouride so how much sodium flouride is needed?

ans is 1.1mg

 

[narihari]

I agree with you, I was thinking tht because it is sodium flouride may be the ans is differernt but I was not sure how come it is?
still in the ans key it says 2.2mg
as it says child require 1.0mg of flouride ion per day and to maintain that 2.2 mg NAF is needed
but I think you are right
thanx for explanation

there is one more similar qs that 9yr old child lives in area where water has 0.5 ppm flouride so how much sodium flouride is needed?

ans is 1.1mg

link below can shed some light:
http://www.mayoclinic.com/health/drug-information/DR601265

 

[BENNY4567]

opoids act on mu receptors and cholinergic on muscaranic, if mu and muscarinic r not same? kinda confused pls help

 

[bombshell]

Benny,
some things in the pharmacology section you just have to read and memorize them. There is no point of going that much in details. Just remember opioids act on both receptors (mu being the major receptor, and the cholinergic being secondary receptors that produce secondary effects). And yes, those receptors aren't the same!!!

opoids act on mu receptors and cholinergic on muscaranic, if mu and muscarinic r not same? kinda confused pls help

 

[canon]

question 1: I would go with A (maximal intercuspation), my seond option would be rest position. You always try to take ceph in centric occlusion, but they do not give that option

 

[canon]

I am positive that you are right because they are asking you How much sodium fluoride? and 1.1 mg of NaF releases .5 mg ion fluoride👍

 

[BENNY4567]

Thank u bombshell but as u said that opoids act on both means on mu and muscuaranic receptors. actually i got ques and i was confused if MOA of opiods is increase in pain threshold or action on muscuranic receptors. I thought they mean mu from muscuranic, so i selected wrong choice due to this confusion.

Benny,
some things in the pharmacology section you just have to read and memorize them. There is no point of going that much in details. Just remember opioids act on both receptors (mu being the major receptor, and the cholinergic being secondary receptors that produce secondary effects). And yes, those receptors aren't the same!!!

 

[Darya]

Pt has Asthma, Can you give him Acetaminophen?
I know you can't give them NSAIDS


Pt has allergy to Codeine, can you give him Lortab (Hydrocodone and Acetamiophen)?

 

[Darya]

one more question,

after SRP, pocket depts have not improved (both cases), what's next step

case 1, pt has tons of recession. Do regenrative SX?

case 2, pt just has 4, 5, 6 mm pockets. Do flap SX?

 

[bombshell]

Pt has Asthma, Can you give him Acetaminophen?
I know you can't give them NSAIDS
I read that question somewhere (I think decks). The answer is that you can give acetaminophen. You can't give aspirin though. You can give acetaminophen as it is "unusual" NSAIDs, not acting on COX as Aspirin and all others. Hope it helps.

Pt has allergy to Codeine, can you give him Lortab (Hydrocodone and Acetamiophen)?

NO clue there if codeine and hydrocodone can cause cross sensitivity. ;(

 

[sunshine101]

Pt has Asthma, Can you give him Acetaminophen?
I know you can't give them NSAIDS


Pt has allergy to Codeine, can you give him Lortab (Hydrocodone and Acetamiophen)?

acetaminophen is safe in asthamatic patient
and hydrocodone is safe in pt with allergy to codein, so you can give lortab,

 

[sunshine101]

one more question,

after SRP, pocket depts have not improved (both cases), what's next step

case 1, pt has tons of recession. Do regenrative SX?

case 2, pt just has 4, 5, 6 mm pockets. Do flap SX?

if after SRP, pt doesnt respond well to it, next step is surgical procedure; so I think for both cases you need to provide surgery as TX

 

[sunshine101]

what is the most frequent cause of endodontic failure?
failure to sterilize the canal
poor condensation and filling of the canal?


for this q I found both ans as most common cause , can anyone tell me what is the real correct ans?

 

[Boston 2012]

percussion is the dental diagnostic procedure, used to determint

tooth is vital
pulp is hyperemic
periodontitis exist
pulp is hyperemic
all of the above

ANS : periodntitis exists

I think the ans should be , pulp is hyperemic

can anyone plz explain the ans of this q?
thanx

 

[BENNY4567]

Most common coz of endo failure is coronal leakage.

what is the most frequent cause of endodontic failure?
failure to sterilize the canal
poor condensation and filling of the canal?


for this q I found both ans as most common cause , can anyone tell me what is the real correct ans?

 

[BENNY4567]

Precussion always detemine if there is some perio problem not hypermia which is a reversible condition and is determined if sensititity appear with stimulus and then go away with its removal.

percussion is the dental diagnostic procedure, used to determint

tooth is vital
pulp is hyperemic
periodontitis exist
pulp is hyperemic
all of the above

ANS : periodntitis exists

I think the ans should be , pulp is hyperemic

can anyone plz explain the ans of this q?
thanx

 

[Boston 2012]

Precussion always detemine if there is some perio problem not hypermia which is a reversible condition and is determined if sensititity appear with stimulus and then go away with its removal.

thanx for explanation

 

[narihari]

Most common coz of endo failure is coronal leakage.

my 2cents..

if the canals r not fully debrided/cleaned, the failure rate is high.
Reasons for failure-failure to debride, incomplete obturation, coronal leakage

 

[narihari]

acetaminophen is safe in asthamatic patient
and hydrocodone is safe in pt with allergy to codein, so you can give lortab,

can give lortab but NOT tyenolol 123 (as it has codiene)

 

[narihari]

Precussion always detemine if there is some perio problem not hypermia which is a reversible condition and is determined if sensititity appear with stimulus and then go away with its removal.

correct

 

[bombshell]

The failure is high, you are right, narihari. But the question was asking about most cases of endo fail due to.. The answer to that is surely coronal leakage (100% sure about it!).

my 2cents..

if the canals r not fully debrided/cleaned, the failure rate is high.
Reasons for failure-failure to debride, incomplete obturation, coronal leakage

 

[narihari]

The failure is high, you are right, narihari. But the question was asking about most cases of endo fail due to.. The answer to that is surely coronal leakage (100% sure about it!).

anyone can jump in and clarify..thanks

 

[appu09]

anyone can jump in and clarify..thanks

high failure is due to improper cleaning and shaping of canals....

 

[bombshell]

Let me try to clarify it for you. You are supposed to do the endo perfectly that we know all (filing, cleaning, obturation till the constriction), but still many clinicians underestimate the importance of the coranal seal, hence why the frequency of failure of endo procedures is due to coranal leakage (the dentist does the endo perfectly, but since the tooth is not "sealed" off the envirnment, reinfection occurs, causing the whole endo treatment to fail). Hope it makes sense to you now. And yes, I have seen that question somewhere and I am really sure about the answer.

anyone can jump in and clarify..thanks

 

[BENNY4567]

Page 27, mosby: most common coz is coronal leakage.

 

[BENNY4567]

1. 8 yr old pt, 2nd primary max molar(J) is missing, wat is space maintainence of choice? ( its q 44, page 357 mosby)
a band loop
b. nance holding arch(ans) why not bandloop
I know we should c age of pt., but in some cases ans is always band and loop in case of max arch and whole lingual arch holder can be used if permanent mand incisor erupt, really can't get it for max arch, plssss expalin it to me.

2. most toxic form of Hg is methy mercury. And in dental amalgam, there is elemental form of Hg, so which one is most toxic form in dental?

 

[sunshine101]

1. 8 yr old pt, 2nd primary max molar(J) is missing, wat is space maintainence of choice? ( its q 44, page 357 mosby)
a band loop
b. nance holding arch(ans) why not bandloop
I know we should c age of pt., but in some cases ans is always band and loop in case of max arch and whole lingual arch holder can be used if permanent mand incisor erupt, really can't get it for max arch, plssss expalin it to me.

2. most toxic form of Hg is methy mercury. And in dental amalgam, there is elemental form of Hg, so which one is most toxic form in dental?

when ever 2nd primary molar is lost ,either unilateral or bilateral choice is always nance holding arch or PAH, for mixed dentition stage, because when primary 1st molar will lost after some time , the band and loop will be of no use,

if they ask for primary first molar then for unilateral loss, BLS is used and for bilateral loss nance holding arch or PAH is used

I hope , what I mean to say

 

[uabsfm]

prostaglandins prodeuce all of the following pharmacological actions except

pyrexia
uterine contraction
increased gasstric secretion
" capillary permiability
pain when injected intradermally

 

[BENNY4567]

Thanx a lot sunshine
if age is 6yr and primary 2nd molar loss, as still 3-4 yr r there for exfoliation of primary 1st molar, permant 1st premolar will erupt in 9-10 yr, even then we will give nance arch?
And one thing more pls, if primary max 1st molar lost at 8yr., do we give band and loop as still canine is primary?

when ever 2nd primary molar is lost ,either unilateral or bilateral choice is always nance holding arch or PAH, for mixed dentition stage, because when primary 1st molar will lost after some time , the band and loop will be of no use,

if they ask for primary first molar then for unilateral loss, BLS is used and for bilateral loss nance holding arch or PAH is used

I hope , what I mean to say

 

[BENNY4567]

prostaglandins prodeuce all of the following pharmacological actions except

pyrexia
uterine contraction
increased gasstric secretion ans
" capillary permiability
pain when injected intradermally

correct me if wrong

 

[narihari]

correct me if wrong

prostraglandins DECREASE gastric secretions..thats what I thought

 

[sunshine101]

which of the following is generally not required for dental e xray safety?

lead lined generator room
operator not present during exposure procedure
minimum distance present from operator to exposure
remote control start button

 

[narihari]

which of the following is generally not required for dental e xray safety?

lead lined generator room
operator not present during exposure procedure
minimum distance present from operator to exposure
remote control start button

lead lined generator room--??

 

[sunshine101]

Thanx a lot sunshine
if age is 6yr and primary 2nd molar loss, as still 3-4 yr r there for exfoliation of primary 1st molar, permant 1st premolar will erupt in 9-10 yr, even then we will give nance arch?
And one thing more pls, if primary max 1st molar lost at 8yr., do we give band and loop as still canine is primary?

in mixed dentition use nance holding arch
i dont understand yr 2nd qs

 

[bombshell]

which of the following is generally not required for dental e xray safety?

lead lined generator room (yes! Always, either way you can't have any Xray)
operator not present during exposure procedure (You may be present, meaning you are wearing a lead gown, not behind/in another room).
minimum distance present from operator to exposure (also need to put the min. distance between you and the patient/film)
remote control start button *you always have it and need to use it.

Correct me if i am wrong. 😉

 

[narihari]

Correct me if i am wrong. 😉

highly doubtfull..saw this Q's somewhere..lead lined walls, desks, aprons etc are common, but rarely heard of lead lined "room"

 

[bombshell]

That is the special paint and isolation that they make you put in the room with the Xray (as well as there are some details about the door's tickness and stuff). And yes, I know those isolation because of the "requirements" my boss was supposed to meet in order to install a Xray machine in his dental office.

highly doubtfull..saw this Q's somewhere..lead lined walls, desks, aprons etc are common, but rarely heard of lead lined "room"

 

[narihari]

That is the special paint and isolation that they make you put in the room with the Xray (as well as there are some details about the door's tickness and stuff). And yes, I know those isolation because of the "requirements" my boss was supposed to meet in order to install a Xray machine in his dental office.

please jump-in to clarify--anyone..thanks

 

[briansle]

white patch than cannot be wiped off.: choices: white sponge nevus, candidiasis, lichen planus, epithelial dysplasia.

I know that lichen planus and candidiasis can be wiped off.

First thought it was epith dysplasia, because I know leukoplakia and cancerous type lesions cannot be wiped off.

But white sponge nevus also cannot be wiped off. But i guess white plques from dysplasia can be wiped off. Since it's not exactly leukoplakia yet.

 

[briansle]

What has cross allergenicity with penicillin

 

[briansle]

prostraglandins DECREASE gastric secretions..thats what I thought

your right, checked online. not sure how or why it's significant