Official NBDE Part 2 Study Q & A Thread

[tinman831]

Please post all study questions/answers for the NBDE Part 2 in this thread. Good luck!


As a side note, this is not the place for sales ads. Discussion of remembered questions appearing on the exam is also not permitte

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Members don't see this ad.

 

[morphology]

stimulation of b2 receptors causes what of th following?
a)vasodilation
b)sweating
c)bronchodilation
d) bronchoconstriction

answer can be both a and c, right?



Ph of bacteria is?(what bacteria, acidogenic, aciduric, etc???
the q. is insufficient.
a)3
b)3.5
c)4
d)4.5
e) 5

 

[dentstudnit]

stimulation of b2 receptors causes what of th following?
a)vasodilation
b)sweating
c)bronchodilation
d) bronchoconstriction

answer can be both a and c, right?



Ph of bacteria is?(what bacteria, acidogenic, aciduric, etc???
the q. is insufficient.
a)3
b)3.5
c)4
d)4.5
e) 5

1.answer-- a and c

 

[morphology]

1)down syndrom affects which of the following

Caries
periodontal disease
both

i think answer is periodontal disease

2)medically compromised pt will benefits mor from

a. flouride rinses
b. chloremidine rinse
c. mouthwash
d. none of the above

after food consumption the ph reaches its maximum in the mouth

a. 20-25
b.10-15
c. 2-3
d. 5-9

all of the following are good way to prevent dental disease with the exception of
a. brushing with a flouridated tooth paste
b. flouride in water
c.flouride rises
d. diet control and flouride in the water


ideal occlusion in the adult population of the unites states is found

a. often 80-90%
b. 50-60% of the time
c. 20-30% of the time
d. very rarely(0-5%)--answer
i think answer is c its given in mosby.

 

[fmx89591277]

A traumatic injury can cause the pulp space to calcify, because the accident can trigger odontoclasts into accelerated activity.


A. Both the statement and the reason are correct and related.
B. Both the statement and the reason are correct but NOT related.
C. The statement is correct, but the reason is NOT.
D. The statement is NOT correct, but the reason is correct.
E. NEITHER the statement NOR the reason is correct.

I chose c.

A 34-year-old black woman presents for a routine oral examination. She has six mandibular anterior teeth remaining in the mouth. She is asymptomatic and there is no evidence of decay or tooth destruction, although slight periodontal disease is present. Radiographically, there are periapical radiolucencies present on tow mandibular central incisors. Electric pulp testing indicates all teeth are responsive in a similar fashion. Which of the following is the treatment of choice?

A. Initiate root canal treatment on the two teeth
B. Test cavities on mandibular central incisors
C. Identify the dark, potentially necrotic pulp chambers by transillumination
D. Extract and replace teeth with a mandibular partial denture
E. No treatment is necessary at this time

I chose E

please correct me.

thanks

 

[texas1286]

A traumatic injury can cause the pulp space to calcify, because the accident can trigger odontoclasts into accelerated activity.


A. Both the statement and the reason are correct and related.
B. Both the statement and the reason are correct but NOT related.
C. The statement is correct, but the reason is NOT.
D. The statement is NOT correct, but the reason is correct.
E. NEITHER the statement NOR the reason is correct.

I chose c.
I think ans C


A 34-year-old black woman presents for a routine oral examination. She has six mandibular anterior teeth remaining in the mouth. She is asymptomatic and there is no evidence of decay or tooth destruction, although slight periodontal disease is present. Radiographically, there are periapical radiolucencies present on tow mandibular central incisors. Electric pulp testing indicates all teeth are responsive in a similar fashion. Which of the following is the treatment of choice?

A. Initiate root canal treatment on the two teeth
B. Test cavities on mandibular central incisors
C. Identify the dark, potentially necrotic pulp chambers by transillumination
D. Extract and replace teeth with a mandibular partial denture
E. No treatment is necessary at this time

I chose E

I think ans E

please correct me.

thanks[/QUOTE

 

[texas1286]

1)down syndrom affects which of the following

Caries
periodontal disease
both

i think answer is periodontal disease

2)medically compromised pt will benefits mor from

a. flouride rinses
b. chloremidine rinse
c. mouthwash
d. none of the above

This pateint need daily APF application or .1 NaF plus 0.04 st F. I am not sure we can cosider it as floride rinse or not

after food consumption the ph reaches its maximum in the mouth

a. 20-25
b.10-15
c. 2-3
d. 5-9

all of the following are good way to prevent dental disease with the exception of
a. brushing with a flouridated tooth paste
b. flouride in water
c.flouride rises
d. diet control and flouride in the water


ideal occlusion in the adult population of the unites states is found

a. often 80-90%
b. 50-60% of the time
c. 20-30% of the time
d. very rarely(0-5%)--answer
i think answer is c its given in mosby.

I am not sure bt i think ans shd b rarely . 20-30% is class 1 WHICH MIGHT INCLUDE CLASS 1 MALLOCCLUSION. so i think an sshd b D

 

[texas1286]

stimulation of b2 receptors causes what of th following?
a)vasodilation
b)sweating
c)bronchodilation
d) bronchoconstriction

answer can be both a and c, right?



Ph of bacteria is?(what bacteria, acidogenic, aciduric, etc???
the q. is insufficient.
a)3
b)3.5
c)4
d)4.5
e) 5

Ph below 5.5 where reminerlaization start. and acidogenic n aciduric means bact who can tolerat n survive in acidic medium, which are strpt mutans. if they perticularly ask abt strpt ph i ll go for 4.5

 

[texas1286]

Please post all study questions/answers for the NBDE Part 2 in this thread. Good luck!

Good job Tinman. Now i dont need to go over whole page to luk for newly posted question.

 

[morphology]

Ph below 5.5 where reminerlaization start. and acidogenic n aciduric means bact who can tolerat n survive in acidic medium, which are strpt mutans. if they perticularly ask abt strpt ph i ll go for 4.5

but i think b2 receptor also causes vasodilators.

 

[texas1286]

but i think b2 receptor also causes vasodilators.

they are. Reason would be... vessel wall have both b1 n b2 n brochi mainly have b2. so ans shd b b2.

 

[mvyr]

I am not sure bt i think ans shd b rarely . 20-30% is class 1 WHICH MIGHT INCLUDE CLASS 1 MALLOCCLUSION. so i think an sshd b D

According to Mosby - class I normal occlusion - 30%
class I malocclusion - 50%

So, I think answer should be - 20 - 30%...

 

[mvyr]

1 Decrease in which of the following causes increase in radigraphic density?
a. mA
b. Kvp
c. object film distance
d. source film distance
e. exposure time

2 an unconscious patient suspected of having obstracted airway. Management for patient
a. protrude the tongue, clear the pharynx,extend the neck & protrude the mandible.
b. ext. the neck, clear the pharx,prodrude the tong & m/d
c. ext. the neck, protrude the m/d & tongue, clear the pharynx
d. clear the pharynx, extend the neck, protrude the m/d & tongue

3. Charecter & individuality of teethare determined by
a. transleucency
b. surface texture
c. color
d. shape

4 Which explain why the properly desined rest on the lingual surface of canine is prefered over incisal surface
a. enamel is thicker on lingual surface
b. less leverage is exerted againest the tooth by the lingual rest

5 compression of acrylic into denture flask, placing the flask into processing tank at curing temprature is delayed to
a. assure complete flow of acrylic into mold
b. allow monomer to penetrate all polymer
c. establise an equalized & uniform pressure on the mold
d. allow the flask &acrylic to reach at stable tem.

 

[morphology]

1 Decrease in which of the following causes increase in radigraphic density?
a. mA
b. Kvp
c. object film distance
d. source film distance----answer
e. exposure time

2 an unconscious patient suspected of having obstracted airway. Management for patient
a. protrude the tongue, clear the pharynx,extend the neck & protrude the mandible.
b. ext. the neck, clear the pharx,prodrude the tong & m/d
c. ext. the neck, protrude the m/d & tongue, clear the pharynx
d. clear the pharynx, extend the neck, protrude the m/d & tongue

3. Charecter & individuality of teethare determined by
a. transleucency
b. surface texture
c. color
d. shape---answer but not sure

4 Which explain why the properly desined rest on the lingual surface of canine is prefered over incisal surface
a. enamel is thicker on lingual surface
b. less leverage is exerted againest the tooth by the lingual rest

5 compression of acrylic into denture flask, placing the flask into processing tank at curing temprature is delayed to
a. assure complete flow of acrylic into mold
b. allow monomer to penetrate all polymer---answer
c. establise an equalized & uniform pressure on the mold
d. allow the flask &acrylic to reach at stable tem.

correct me if i am wrong.

 

[mvyr]

correct me if i am wrong.

Hello morphology,
Can you please explain me question 1?
For Que 3 I also think it should be d (shape) while ans is b (surface texture).
question 5 ans is d.

These are ASDA M-2 paper questions...I am just wondering that answer could be wrong in ASDA papers..

 

[Mrs ali]

i ran through this question in ASDA exam
3 carpules of (2 ml carpule)LA x are required to to obtain adequate LA.to obtain same degree of anastheisa 5 carpule(2 ml carpule) are required of LA y.if no other information is available about the drugs,then its accurate to say that drug x
a.is more potent than y
b.is less potent than y
c.is more efficacious than y
d.is less efficacious than y
e.x&y are =in potency and efficacy
it says the answer is E while i think it should be A..any help

 

[mvyr]

i ran through this question in ASDA exam
3 carpules of (2 ml carpule)LA x are required to to obtain adequate LA.to obtain same degree of anastheisa 5 carpule(2 ml carpule) are required of LA y.if no other information is available about the drugs,then its accurate to say that drug x
a.is more potent than y
b.is less potent than y
c.is more efficacious than y
d.is less efficacious than y
e.x&y are =in potency and efficacy
it says the answer is E while i think it should be A..any help

I guess you are right...Efficacy is equal for both of drug but potency of drug X is more than Y..

 

[HYDDDS]

Hi Guys
Has anyone tried Qbankdmd for part2?

 

[texas1286]

1 Decrease in which of the following causes increase in radigraphic density?
a. mA
b. Kvp
c. object film distance
d. source film distance
e. exposure time

2 an unconscious patient suspected of having obstracted airway. Management for patient
a. protrude the tongue, clear the pharynx,extend the neck & protrude the mandible.
b. ext. the neck, clear the pharx,prodrude the tong & m/d
c. ext. the neck, protrude the m/d & tongue, clear the pharynx
d. clear the pharynx, extend the neck, protrude the m/d & tongue

3. Charecter & individuality of teethare determined by
a. transleucency
b. surface texture
c. color
d. shape

4 Which explain why the properly desined rest on the lingual surface of canine is prefered over incisal surface
a. enamel is thicker on lingual surface
b. less leverage is exerted againest the tooth by the lingual rest

5 compression of acrylic into denture flask, placing the flask into processing tank at curing temprature is delayed to
a. assure complete flow of acrylic into mold
b. allow monomer to penetrate all polymer
c. establise an equalized & uniform pressure on the mold
d. allow the flask &acrylic to reach at stable tem.

correct me if i m wrong

 

[texas1286]

i ran through this question in ASDA exam
3 carpules of (2 ml carpule)LA x are required to to obtain adequate LA.to obtain same degree of anastheisa 5 carpule(2 ml carpule) are required of LA y.if no other information is available about the drugs,then its accurate to say that drug x
a.is more potent than y
b.is less potent than y
c.is more efficacious than y
d.is less efficacious than y
e.x&y are =in potency and efficacy
it says the answer is E while i think it should be A..any help

i think ans shd b A

 

[meshmesher]

Hello ppl

can anyone answer these questions plz?

single rooted anterior teeth has endodontic treatment is best treated by:
- casted post and core
- preformed post and composite
- preformed post and amalgam
- composite post and core

one of the anatomical landmarks is:
- ala tragus line
- ala orbital
- frank fort plane

 

[morphology]

Hello ppl

can anyone answer these questions plz?

single rooted anterior teeth has endodontic treatment is best treated by:
- casted post and core
- preformed post and composite
- preformed post and amalgam
- composite post and core

one of the anatomical landmarks is:
- ala tragus line---answer
- ala orbital
- frank fort plane

i think answer is ala tragus line because the frankfort plane is cephalometric landmark

 

[texas1286]

1. Additional cured silicones (polyvinyl Siloxane) are often the materials of choice for impressions for fixed restorations. Each of the following is true about these materials except one. Which one is this exception?
a. give off ethyl alcohol during their setting reaction
b. can be poured more than once and still remain accurate
c. can be poured after 24 hours and still remain accurate<<<<<
d. rebound from undercuts without permanent deformation
e. may released hydrogen gas during setting
2. why is it advisable to dispense the liquid component of cement of cement immediately before mixing?
a. to avoid absorption of moisture from the air
b. to avoid spreading over a large area of the slab
c. to allow tempering of the powder by the mixing slab
d. to reduce the temperature influence of the mixing slab
e. to prevent evaporation of the volatile components.<<<<<
3 Which of the following is the typical interocclusal distance between opposing denture teeth at the physiological rest position?
a. 0.0-0.15 mm
b. 2.0-4.0 mm<<<<<<
c. 4.5-5.5 mm
d 6.0-8.0 mm
4 As an X-ray tube operates, electrons carry energy from the cathode to the anode into which of the following is MOST of this energy converted in the target?
a. heat<<<<<
b. X ray
c. Magnetism
d. electricity
e. visible light
5 Class II amalgam restoration has a overhang at gingival margin. This might have been caused by which of the following?
a. poor adaptation of the matrix band
b. poor carving
c. did not wedge the matrix band>>>> ans shd b all of the above.. any suggestion
6 At what age are all primary teeth normally in occlusion?
a. 1.5-2.0 years
b. 2.5-3.0 years>>>>.
c. 3.5-4 years
d. >4 years
7 Larger condensers and laterally applied condensation forces are recommended to ensure complete condensation of which of the following amalgam types?
a. admixed
b. spherical
c. lathe-cut>>>>
d. high-copper
e. conventional
8 The usual metabolic pathway of ingested fluoride primarily involves urinary excretion with the remaining portion found largely in the
a. teeth
b. muscle tissue
c. skeletal tissue>>>
d. epidermal tissue
9 occlusal sealants succeed by altering which of the following
a. the substrate
b. the bacterial types
c. the bacterial number
d. the bacterial virulence
e. the host's susceptibility>>>
10 probing depth can vary based on the degree of inflammation
frequently, the reduction in probing depth obtained after initial therapy reflects this changes, rather than a true gain in clinical attachment.
a. both statements are true>>>
b. both statements are false
c. the first statement is true, the second statement is false
d. the first statement is false, the second is true
11 a major advantage to patient treatment with osseointegrated dental implants is a change in the pattern of edentulous ridge resorption, which of the following is believed to be the reason for a more physiologic loading of the bone
a. delayed loading
b. endosteal loading>>>>
c. sequential loading
d. progressive loading
e. mucoperiosteal loading
12 an 18 year old man complains of tingling in his lower lip. an examination discloses a painless, hard swelling of his mandibular premolar region. the patient first noticed this swelling three weeks ago. radiograph indicate a loss of cortex and a diffuse radiating pattern of trabeculae in the mass. which of the following is the MOST likely diagnosis
a. leukemia
b. dentigerous cyst
c. ossifying fibroma.>>
d. osteoma
e. hyperparathyroidism
13 increasing the amount of water in the mix of an improved gypsum die-stone will MOST likely result in which of the following
a. more expansion and more strength
b. more expansion and less strength>>>>
c. less expansion and more strength
d. less expansion and less strength
14 which of the following is recommended for treating the pain of tic douloureux (trigeminal neuralgia)?
a. oxycodone
b. ibuprofen
c. carbamazepine>>>
d. hydrocortisone
e. acetylsalicylic acid
15 which of the following is seen MOST frequently among temporomandibular-joint dysfunction patient
a. depression>>>
b. psychosis
c. sociopathy
d. schizotypical behavior
e. passive-aggressive behavior
16 which of the following diagnostic criteria is the LEAST reliable in the assessment of the pulp status in the primary dentition
a. swelling
b. pulp testing>>>>
c. spontaneous pain
d. internal resorption
17 which of the following explains why the Z-plasty technique used in modifying a labial frenum is considered to be superior to the diamond technique
a. it is less traumatic>>>
b. it is technically easier
c. it requires fewer sutures
d. it decreases the effects of scar contracture.
e. it allows for closure by secondary intention
18 which of the following MOST accurately explains how biofeedback works
a. it reduced cognitive dissonance
b. it stimulates the sympathetic nervous system
c. it relaz and to some extent hypnotizes the patient
d. it distracts and engages the patient in an active coping task.>>>
e. it enables the patient to gain control of certain physiological function
19 which of the following describes clindamycin
a. inhibits cell wall synthesis
b. does not penetrate well into bony tissue
c. it usually given in combination with erythromycin
d. is effective against gram-negative bacteria only
e. is effective against most anaerobes>>>>
20 dentists usually send their cemento-metal restoration cases to dental lab for fabrication. upon receiving the cases, these technicians MOST frequently complain that the
a. margines have been ill-defined>>>
b. teeth have been insufficiently reduced
c. shades for the restorations have been inadequately described
d. impressions or models are inaccurate


please correct question marked doubt....

 

[texas1286]

Hello ppl

can anyone answer these questions plz?

single rooted anterior teeth has endodontic treatment is best treated by:
- casted post and core
- preformed post and composite
- preformed post and amalgam
- composite post and core

one of the anatomical landmarks is:
- ala tragus line
- ala orbital
- frank fort plane

whats difference between composite post and core and preformed post and composite. i think bith have same result.

 

[bansbari]

1. Additional cured silicones (polyvinyl Siloxane) are often the materials of choice for impressions for fixed restorations. Each of the following is true about these materials except one. Which one is this exception?
a. give off ethyl alcohol during their setting reaction
b. can be poured more than once and still remain accurate
c. can be poured after 24 hours and still remain accurate<<<<<
d. rebound from undercuts without permanent deformation
e. may released hydrogen gas during setting
Ethyl Alcohol is bi-product of Condensation silicon

4 As an X-ray tube operates, electrons carry energy from the cathode to the anode into which of the following is MOST of this energy converted in the target?
a. heat<<<<<
b. X ray
c. Magnetism
d. electricity
e. visible light
99% of energy is converted into heat.

7 Larger condensers and laterally applied condensation forces are recommended to ensure complete condensation of which of the following amalgam types?
a. admixed
b. spherical( I think so....plz correct if i am wrong)
c. lathe-cut>>>>
d. high-copper
e. conventional

Please correct me if i am wrong.......

 

[Dental s]

1. Additional cured silicones (polyvinyl Siloxane) are often the materials of choice for impressions for fixed restorations. Each of the following is true about these materials except one. Which one is this exception?
a. give off ethyl alcohol during their setting reaction
b. can be poured more than once and still remain accurate
c. can be poured after 24 hours and still remain accurate<<<<<
d. rebound from undercuts without permanent deformation
e. may released hydrogen gas during setting
2. why is it advisable to dispense the liquid component of cement of cement immediately before mixing?
a. to avoid absorption of moisture from the air
b. to avoid spreading over a large area of the slab
c. to allow tempering of the powder by the mixing slab
d. to reduce the temperature influence of the mixing slab
e. to prevent evaporation of the volatile components.<<<<<
3 Which of the following is the typical interocclusal distance between opposing denture teeth at the physiological rest position?
a. 0.0-0.15 mm
b. 2.0-4.0 mm<<<<<<
c. 4.5-5.5 mm
d 6.0-8.0 mm
4 As an X-ray tube operates, electrons carry energy from the cathode to the anode into which of the following is MOST of this energy converted in the target?
a. heat<<<<<
b. X ray
c. Magnetism
d. electricity
e. visible light
5 Class II amalgam restoration has a overhang at gingival margin. This might have been caused by which of the following?
a. poor adaptation of the matrix band
b. poor carving
c. did not wedge the matrix band>>>> ans shd b all of the above.. any suggestion
6 At what age are all primary teeth normally in occlusion?
a. 1.5-2.0 years
b. 2.5-3.0 years>>>>.
c. 3.5-4 years
d. >4 years
7 Larger condensers and laterally applied condensation forces are recommended to ensure complete condensation of which of the following amalgam types?
a. admixed
b. spherical:ANS..
c. lathe-cut>>>>
d. high-copper
e. conventional
8 The usual metabolic pathway of ingested fluoride primarily involves urinary excretion with the remaining portion found largely in the
a. teeth
b. muscle tissue
c. skeletal tissue>>>
d. epidermal tissue
9 occlusal sealants succeed by altering which of the following
a. the substrate
b. the bacterial types
c. the bacterial number
d. the bacterial virulence
e. the host's susceptibility>>>
10 probing depth can vary based on the degree of inflammation
frequently, the reduction in probing depth obtained after initial therapy reflects this changes, rather than a true gain in clinical attachment.
a. both statements are true>>>
b. both statements are false
c. the first statement is true, the second statement is false
d. the first statement is false, the second is true
11 a major advantage to patient treatment with osseointegrated dental implants is a change in the pattern of edentulous ridge resorption, which of the following is believed to be the reason for a more physiologic loading of the bone
a. delayed loading
b. endosteal loading>>>>
c. sequential loading
d. progressive loading.ans..
e. mucoperiosteal loading
12 an 18 year old man complains of tingling in his lower lip. an examination discloses a painless, hard swelling of his mandibular premolar region. the patient first noticed this swelling three weeks ago. radiograph indicate a loss of cortex and a diffuse radiating pattern of trabeculae in the mass. which of the following is the MOST likely diagnosis
a. leukemia
b. dentigerous cyst
c. ossifying fibroma.>>
d. osteoma
e. hyperparathyroidism
13 increasing the amount of water in the mix of an improved gypsum die-stone will MOST likely result in which of the following
a. more expansion and more strength
b. more expansion and less strength>>>>
c. less expansion and more strength
d. less expansion and less strength.ANS..
14 which of the following is recommended for treating the pain of tic douloureux (trigeminal neuralgia)?
a. oxycodone
b. ibuprofen
c. carbamazepine>>>
d. hydrocortisone
e. acetylsalicylic acid
15 which of the following is seen MOST frequently among temporomandibular-joint dysfunction patient
a. depression>>>
b. psychosis
c. sociopathy
d. schizotypical behavior
e. passive-aggressive behavior
16 which of the following diagnostic criteria is the LEAST reliable in the assessment of the pulp status in the primary dentition
a. swelling
b. pulp testing>>>>
c. spontaneous pain
d. internal resorption
17 which of the following explains why the Z-plasty technique used in modifying a labial frenum is considered to be superior to the diamond technique
a. it is less traumatic>>>
b. it is technically easier
c. it requires fewer sutures
d. it decreases the effects of scar contracture.ANS..
e. it allows for closure by secondary intention
18 which of the following MOST accurately explains how biofeedback works
a. it reduced cognitive dissonance
b. it stimulates the sympathetic nervous system
c. it relaz and to some extent hypnotizes the patient
d. it distracts and engages the patient in an active coping task.>>>
e. it enables the patient to gain control of certain physiological function.ANS..
19 which of the following describes clindamycin
a. inhibits cell wall synthesis
b. does not penetrate well into bony tissue
c. it usually given in combination with erythromycin
d. is effective against gram-negative bacteria only
e. is effective against most anaerobes>>>>
20 dentists usually send their cemento-metal restoration cases to dental lab for fabrication. upon receiving the cases, these technicians MOST frequently complain that the
a. margines have been ill-defined>>>
b. teeth have been insufficiently reduced.ANS..
c. shades for the restorations have been inadequately described
d. impressions or models are inaccurate


please correct question marked doubt....

hope this help, correct me if I'm wrong..

 

[dentalcare312]

I need some help with this question I ran into on the 1998-2005 released exam:
#142
When both nitrous oxide and oxygen tanks are used to one-half of their capacities, what are their gas pressures in psi (The starting gas pressures are O2 [2,000]; N2O [750] )
a) O2 1000; N20 325
b) O2 2000; N2O 750
c) O2 1000; N2O 750
d) O2 2000; N2O 325

I thought it would be A, but the answer key said it was B. Why? Then to confuse me even more, a website I found said that oxygen's pressure gradually drops proportionate to the amount that leaves the tank, while N2O keeps the same pressure until the tank is empty - in which case the answer would be C. What should I believe? Thanks in advance!

 

[meshmesher]

Thanx Texas and Morphology for ur help...really appreciate it...

 

[USCSD2010]

so i took part 2's early this month, just found out yesterday i didnt pass, got a 74!, anyway ive already taken wrebs, law and ethics exam, everything is ready to go, just needed to pass part 2's! my question is this, i know on the testing website they say you need to wait 90 days between re-examinations, however im certain ive heard of students being allowed to retake it much sooner than the 90 period. has anyone had this situation or know of anyone thats failed part 2's and been able to re-take it quickly? thanks.

 

[bansbari]

Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.

please explain me how the answer is 2.2mg???

 

[texas1286]

Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.

please explain me how the answer is 2.2mg???

I am also confuse about it. ans should be .25 mg according to pedo deck cards.

 

[bansbari]

Hey Texas,

It is 1991 component b case question.
This question is of sodium fluoride so i think there must be some thing to do with sodium fluoride.
Yes it is .25 mg only if the question is about how much of systemic fluoride the child should thake?

 

[bansbari]

Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.

please explain me how the answer is 2.2mg???

 

[mvyr]

Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.

please explain me how the answer is 2.2mg???

The systemic fluroride available is half of the delivered dose(NaF)..The optimal fluoride should be 1 average that's why dose should be 2.2. You can get the explaination in dental deck 2011-12 inpediatrics & in Mosby.

 

[mvyr]

1. Additional cured silicones (polyvinyl Siloxane) are often the materials of choice for impressions for fixed restorations. Each of the following is true about these materials except one. Which one is this exception?
a. give off ethyl alcohol during their setting reaction
b. can be poured more than once and still remain accurate
c. can be poured after 24 hours and still remain accurate<<<<<
d. rebound from undercuts without permanent deformation
e. may released hydrogen gas during setting
Ethyl Alcohol is bi-product of Condensation silicon

4 As an X-ray tube operates, electrons carry energy from the cathode to the anode into which of the following is MOST of this energy converted in the target?
a. heat<<<<<
b. X ray
c. Magnetism
d. electricity
e. visible light
99% of energy is converted into heat.

7 Larger condensers and laterally applied condensation forces are recommended to ensure complete condensation of which of the following amalgam types?
a. admixed
b. spherical( I think so....plz correct if i am wrong)
c. lathe-cut>>>>
d. high-copper
e. conventional

Please correct me if i am wrong.......

1 . a
Addition silicon don't give off ethyle alcohol. it's cond silicon property.

4. a
It's true that 99% energy converts into heat.

 

[morphology]

The systemic fluroride available is half of the delivered dose(NaF)..The optimal fluoride should be 1 average that's why dose should be 2.2. You can get the explaination in dental deck 2011-12 inpediatrics & in Mosby.

I know that the flouride is 43% of the amount of NaF, but can you tell me what is the dose for that? then only i can calculate. here they have not given the dose. Thanks in advance.

 

[Peter Ausman]

I just did the NDB step 1 and this was not my first attempt. Last time, which was last year, raw score was 233 (out of 400), which gave me 74. I honestly don't think I will answer much more than 233. Does anybody knows if this "scale" has changed since April 2010 last year? I mean for 13 months, are students making better where you need to answer for example 250 questions right to get the passing score of 75?
Last time I received the score report in about 13 days or so.. I hope this has not changed this year
Thank you guys

 

[morphology]

Originally Posted by bansbari
Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.


the nitrous oxide/oxygen sedation machine is set at 3liters/min and 4 liters/min nitrous oxide. what is the concentration of oxygen administered?
33%
43%---ans
53%
63%
73%

Please explain these.

 

[morphology]

Originally Posted by bansbari
Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.


the nitrous oxide/oxygen sedation machine is set at 3liters/min and 4 liters/min nitrous oxide. what is the concentration of oxygen administered?
33%
43%---ans
53%
63%
73%

Please explain these.

 

[hopelessdoc]

Originally Posted by bansbari
Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.


the nitrous oxide/oxygen sedation machine is set at 3liters/min and 4 liters/min nitrous oxide. what is the concentration of oxygen administered?
33%
43%---ans
53%
63%
73%

Please explain these.

1. No idea. Someone explained it on previous page but I did not get it.

2. 3/(3+4) * 100 = 42.857 % ~ 43 %

 

[toothgerm]

I got a score of 83 in part 1 n part 2 both.Wondering if its good enuf to apply...anyways i cant to any thing about it....Just received my part2 result..83...donno if i shd be happy..or....

 

[texas1286]

what continues to grow?
alveolar bone and roof of the orbit
alveolar bone and pterygomaxillary suture

somebody please answer

 

[sarahperez]

1. No idea. Someone explained it on previous page but I did not get it.

2. 3/(3+4) * 100 = 42.857 % ~ 43 %

First you calculate the concentration of NO2

4 NO2/4NO2 + 3O2 * 100 = 57.14

THEN

you subtracts the concentration of NO2 from [O2] =

100% - 57% = 43%O2

 

[sarahperez]

Please clear my doubts in this question...
Q) A child pt. of 4 and half years living in area with fluoride level of 0.3 ppm in water.
Question How much additional systemic sodium fluoride should this child ingest per day?
1) None.
2)0.25 mg
3)0.5 mg
4)1.1 mg
5)2.2 mg ans.

please explain me how the answer is 2.2mg???

Remember: 2.2mg NAF = 1mg of Fluoride
1ppm = 1mg/L

 

[dr roger]

Remember: 2.2mg NAF = 1mg of Fluoride
1ppm = 1mg/L

I think its 1.1mg

cause for year 3 to 6 , daily requirement is 0.6 PPM. not child is getting 0.3 ppm so child need another 0.3 and so he should be given 1.1 NAF = 0.5 mg Flouride..

 

[bansbari]

Hey sarahperez,

Remember: 2.2mg NAF = 1mg of Fluoride
1ppm = 1mg/L
Thank you so much. Finally somebody answer my question and that does make sense.

Hey Toothgerm,
I got a score of 83 in part 1 n part 2 both.Wondering if its good enuf to apply...anyways i cant to any thing about it....Just received my part2 result..83...donno if i shd be happy..or....

why are you sad it's a wonderful score in part2. You have high chance to get into dental school so don't waste your time and apply for College as soon as possible.
It will be great help to all if you can put forward the experience of part2. I have mine in 10 days. What are the topic for last minutes revision.

Thank you all..

 

[sl2obel2ts]

 

[dontist]

nice thread.. very helpful!!

@toothgerm.. its very nice score..

 

[Svetlana]

Hi guys!
Have couple of Qs from released papers.
According to answers:

1.
Best diagnosis for irreversible pulpitis - thermal test
for reversible pulpitis - electric pulp test

Is it correct?
I remember that it should be vise versa

2.
Most consistent canal morphology - mand PM

Isn't it max.canine?

3.
Daily cleaning of the root surface by the patient has been shown to...
answer-allow remineralization of root surface

Isn't it "cause root sensitivity"


THANK YOU

 

[bansbari]

Hi guys!
Have couple of Qs from released papers.
According to answers:

1.
Best diagnosis for irreversible pulpitis - thermal test
for reversible pulpitis - electric pulp test
svetlana,

Is it correct?
I remember that it should be vise versa

2.
Most consistent canal morphology - mand PM

Isn't it max.canine?

3.
Daily cleaning of the root surface by the patient has been shown to...
answer-allow remineralization of root surface

Isn't it "cause root sensitivity"
Plaque is the main cause of root sensitivity so it is always best to remove plaque from those area and may be by doing so re mineralization occur.

Now I have some doubts....I really need someone to clear it..
1) What prospective of hue,chroma and value the Dentist can not change.
2) What is the cause of green discoloration of teeth?
Silver
copper
Thank you so much in advance.....