Nbd 2 Questions

[dentistgal]

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1) Which of the folllowing statements describe composite resins
I They can be placed and finished in the same appointment.
II. They are more color stable than unfilled resins.
III. They are similar to Amalgam with respect to coefficient of Thermal expansion.
IV. The finished surface tends to be somewhat rough.
Answer- A - I , II B. I ,IV C. I, III IV , D. II , III , E. II , III ,IV F. All the above

2) Pulpal irritation would not be expected from a restorative material , provided the minimum thickness of the material was
A 0.2 mm B. 0.5 mm C. 1 mm D. 2 mm E. 3 mm

 

[MitPat]

I think i am preety sure it has to do with the amount of time, as early colonization is predominent with positive bact and as the deposits become older it changes to negative colonization.

thnks dental doc80

With the development of gingivitis, the sulcus
becomes predominantly populated by
A. gram-positive organisms.ANS
B. gram-negative organisms.
C. diplococcal organisms.
D. spirochetes

As in gingivits there is equal population of gram positive and gram negative organism.. Can you please explain the preference for gram positive organism.

In restoring occlusal anatomy, the protrusive
condylar path inclination has its primary influence
on the morphology of
A. cusp height.
B. anterior teeth only.
C. mesial inclines of maxillary cusps and
basic stuff if you remember occlusion this is how it work visualise it and u will get the ans
distal inclines of mandibular cusps.
D. mesial inclines of mandibular cusps and
distal inclines of maxillary cusps.ANS

can you please explain

 

[dr.ymp]

I think i am preety sure it has to do with the amount of time, as early colonization is predominent with positive bact and as the deposits become older it changes to negative colonization.

thnks

 

[dental doc80]

Initially the plaque bacteria are gm+ve cocci...then this shifts to gm+ rods and then in the end gm-ve bacteria and filamentous bacteria come into the picture.......

 

[dental doc80]

157) what is the cause of epulis fissuratum
a. unstable denture
b. under extention
c. over extention-------ANS
d. traumatic occlusion

Epulis fissuratum is caused by Overextended ill fitting dentures flanges.......Unstable denture in itself will not cause epulis fissuratum , though it will cause other problems like sore mucosa or ulcerations etc....

 

[ardzah]

What is the Max amount of lidocain 2% with epinephrin 1:100000 for 44lb kid?
a)60mg
b)80mg
c)100mg
d)120mg

 

[dr.ymp]

157) what is the cause of epulis fissuratum
a. unstable denture
b. under extention
c. over extention-------ANS
d. traumatic occlusion

Epulis fissuratum is caused by Overextended ill fitting dentures flanges.......Unstable denture in itself will not cause epulis fissuratum , though it will cause other problems like sore mucosa or ulcerations etc....

sorry dental doc I deffer from you in this Please check following link
"Epulis fissuratum is a common reaction to chronic
injury from unstable dentures"
Reference:
Journal of candian dental association
http://www.cda-adc.ca/jcda/vol-69/issue-9/603.pdf

 

[dr.ymp]

Initially the plaque bacteria are gm+ve cocci...then this shifts to gm+ rods and then in the end gm-ve bacteria and filamentous bacteria come into the picture.......

You are right abt "organism in dental plaque" dental doc but the question is abt presence of microonrganism in Gingival sulcus during intital phage of gingivitis. And according to Caranza's clinical periodontology "both organism gram positive and gram negative are in equal amount during gingivitis in gingival sulcus" So I am a bit confused...

 

[dental doc80]

sorry dental doc I deffer from you in this Please check following link
"Epulis fissuratum is a common reaction to chronic
injury from unstable dentures"
Reference:
Journal of candian dental association
http://www.cda-adc.ca/jcda/vol-69/issue-9/603.pdf

I did read the article on the link that u posted.However in this article they are talking about epulis fissuratum from a different point of view and have not discussed it's etiology in detail.
I am posting 2 links that u can refer
http://www.emedicine.com/derm/topic654.htm
http://www.zhub.com/pathology/listings/37.html
Both the articles state clearly that E F is caused by overextended borders of ill fitting dentures. The key word is overextendded denture flanges here. Evn in clinical practice when u see a case of EF u notice hyperplastic tissue in the mucobuccal folds caused by over-extended denture.
Well this is just my opinion on this matter. I could certainly be wrong , but i would still go with overextended denture borders as the main cause of epulis fissuratum.

 

[dental doc80]

You are right abt "organism in dental plaque" dental doc but the question is abt presence of microonrganism in Gingival sulcus during intital phage of gingivitis. And according to Caranza's clinical periodontology "both organism gram positive and gram negative are in equal amount during gingivitis in gingival sulcus" So I am a bit confused...

well even in gingival sulcus the organisms initially found would be gm+ve aerobic and then later on gm-ve would come i guess......cant argue wid dr caranza....😛

 

[dental doc80]

What is the Max amount of lidocain 2% with epinephrin 1:100000 for 44lb kid?
a)60mg
b)80mg
c)100mg
d)120mg

The answer is 88 mg......hence i would go wid choice (B).......here's how i calculated it.......the recommended dosage is 4.4mg/Kg of body weight or 2mg/Pound.......
hope this helps.....

 

[vinita]

The answer is 88 mg......hence i would go wid choice (B).......here's how i calculated it.......the recommended dosage is 4.4mg/Kg of body weight or 2mg/Pound.......
hope this helps.....

hey,
Acc. to dental decks..max allowable dose for 2% lidocaine with 1:100,000 epinephrine should be 3.2 mg/lb...so ans should be 44*3.2= 140.8mg.....which is not given in options.😕
help with this

 

[dental doc80]

hey,
Acc. to dental decks..max allowable dose for 2% lidocaine with 1:100,000 epinephrine should be 3.2 mg/lb...so ans should be 44*3.2= 140.8mg.....which is not given in options.😕
help with this

well i dont know abt dental decks but i remember it reading in Malamed that dis is d way to calculate dosage (4.4 mg/Kg or 2 mg/ pound).....
May be i am wrong since i read this some while ago...but this formula has worked for me so far in solving questions like these....
hope this helps..

ps: not everything given in dental decks is accurate and current.

 

[vinita]

well i dont know abt dental decks but i remember it reading in Malamed that dis is d way to calculate dosage (4.4 mg/Kg or 2 mg/ pound).....
May be i am wrong since i read this some while ago...but this formula has worked for me so far in solving questions like these....
hope this helps..

ps: not everything given in dental decks is accurate and current.

hey thanx for correcting me. 2mg/lb is right for children ..so ans would be 80. But for adult 3.2mg/lb will solve questions.
hey i have another ques too.
Which of the foll. is not the characterstic of tetacycline.
They predispose the monilial superinfection
or
they are effective substitute for peniillin for prophylaxis against Infective endocarditis

 

[vinita]

At a PH of 7.8 lidocaine will exist in
1. nonionised form
2.an equal mixture of ionised and nonionised form
Ans 2 is given but i think 1 should be the ans.

 

[vinita]

anyone plz...

 

[dental doc80]

hey thanx for correcting me. 2mg/lb is right for children ..so ans would be 80. But for adult 3.2mg/lb will solve questions.
hey i have another ques too.
Which of the foll. is not the characterstic of tetacycline.
They predispose the monilial superinfection
or
they are effective substitute for peniillin for prophylaxis against Infective endocarditis

they are effective substitute for peniillin for prophylaxis against Infective endocarditis[/QUOTE]ANS/B]

 

[dental doc80]

At a PH of 7.8 lidocaine will exist in
1. nonionised form
2.an equal mixture of ionised and nonionised form
Ans 2 is given but i think 1 should be the ans.

the dissassociation ph of lidocaine is 7.8 hence at this ph it will exist as an equal mixture of ionized and non-ionized form...hence the ans (2) is correct..

 

[vinita]

Thanks..

one more
Following loss of a permanent maxillary
incisor in the normal arch of an ll-year-old
child, a space maintainer is necessary
because
1, space closure is rapid in the incisor
area.
2. allowance must be made for forward
growth.
3. a diastema between incisors must be
maintained.
4. incisors always move laterally, never medially

 

[vinita]

Which of the following often occur during
orthodontic therapy?
1.an incresed sensitivity to EPT
2. an decreased sensitivity to EPT
3.hyperemia of pulp
4. Demineralization of enamel adjacent
to appliances in patients with poor
oral hygiene

ans is given 2,3,4...my confusion is if there is pulp hyperemia ..then there should be increased sensitivity with EPT

 

[dental doc80]

Thanks..

one more
Following loss of a permanent maxillary
incisor in the normal arch of an ll-year-old
child, a space maintainer is necessary
because
1, space closure is rapid in the incisor
area.
2. allowance must be made for forward
growth.
3. a diastema between incisors must be
maintained.
4. incisors always move laterally, never medially

1, space closure is rapid in the incisor
area.

 

[dental doc80]

Which of the following often occur during
orthodontic therapy?
1.an incresed sensitivity to EPT
2. an decreased sensitivity to EPT
3.hyperemia of pulp
4. Demineralization of enamel adjacent
to appliances in patients with poor
oral hygiene

ans is given 2,3,4...my confusion is if there is pulp hyperemia ..then there should be increased sensitivity with EPT

well wat choice (2) means is dat the tooth will respond to a lower current on the EPT.....the explanation which u have in ur mind is absolutely correct...it's jus dat the english of the question is badly framed......
hope dat helps..

 

[RocknSun]

to expose a mandibular lingual torus of the pt who has afull complement of teeth the incision should be

1) semilunar
2) paragingival
3)in the gingival sulcus and embrasure area
4) directly over the most prominent part of the tourus
5)inferior to the lesion , reflecting the tissue support

i think its either 3 or 4 but not sure . input would be highly appreciated

rocknsun

 

[vinita]

to expose a mandibular lingual torus of the pt who has afull complement of teeth the incision should be

1) semilunar
2) paragingival
3)in the gingival sulcus and embrasure area
4) directly over the most prominent part of the tourus
5)inferior to the lesion , reflecting the tissue support

i think its either 3 or 4 but not sure . input would be highly appreciated

rocknsun

3 would be the answer

 

[vinita]

1, space closure is rapid in the incisor
area.

Is it true...
and for premature loss of primary anterior teeth dont reuire space maintainers essentially...right?

Which of the fool is true regarding higher quality xray beams?
a.They r absorbed more by soft tissues.
b. they scatter more
c. both a n b
d. none

 

[dental doc80]

to expose a mandibular lingual torus of the pt who has afull complement of teeth the incision should be

1) semilunar
2) paragingival
3)in the gingival sulcus and embrasure area
4) directly over the most prominent part of the tourus
5)inferior to the lesion , reflecting the tissue support

i think its either 3 or 4 but not sure . input would be highly appreciated

rocknsun

the correct ans is choice (3).....we never give an incision directly on the torus...
hope this helps...

 

[dental doc80]

Is it true...
and for premature loss of primary anterior teeth dont reuire space maintainers essentially...right?

Which of the fool is true regarding higher quality xray beams?
a.They r absorbed more by soft tissues.
b. they scatter more
c. both a n b
d. none

(ans)(because high quality beams are lees absorbed by soft tissues and i dont think that it has any relation to scattering more)(just a guess though)...

you are right but it also depends on the situation...eg. loss of primary teeth prior to the eruption of primary canines will require space maintainer , but not if the anterior teeth are lost after the eruption of canines.....

 

[akka]

Does Anyone know answers to these questions:

1)In RPD why do we need tissue stops?

2)Whats least soluble: cement or base?

3) How many times can we pour up PVS impression

4)Where does metabolism of nitrous oxide occur?

5) Which one enlarges gingiva? vlaproic acid or phenytoin

6) Tanaka and Jonstone vs Bolton analysis?

7) Cementoblastoma vs condensing osteitis?

8) Whcih elastomeric material is most stiff? and which one is least flexible?

9)Root PLaning is between? a)free gingival margin to JE b)alveolar crest and MGJ?

10) 8 yo pt comes with permanent incisor intruded , complains of headache and nausea, what do you do? refer to physician or observe for 24 hrs and if does not go away refer to physician.

11)20 yo pt with intruded incisor no pain or sign of fracture do you do ortho or let it reerupt?

12) Which surface of the MB root of maxillary first molar is more prone to perforation? M, D, B, L

Thanks

 

[dr.ymp]

Is it true...
and for premature loss of primary anterior teeth dont reuire space maintainers essentially...right?

Which of the fool is true regarding higher quality xray beams?
a.They r absorbed more by soft tissues.
b. they scatter more
c. both a n b
d. none

The correct one is D.

 

[RocknSun]

Does Anyone know answers to these questions:

1)In RPD why do we need tissue stops?
ans: transmitting occlusal stresses parallel to the long axis of the tooth

2)Whats least soluble: cement or base?
ans : cement

3) How many times can we pour up PVS impression
ans : impression can be poured upto one week after imp making

4)Where does metabolism of nitrous oxide occur?
ans:lungs

5) Which one enlarges gingiva? vlaproic acid or phenytoin
ans : phenytoin

6) Tanaka and Jonstone vs Bolton analysis?

7) Cementoblastoma vs condensing osteitis?

8) Whcih elastomeric material is most stiff? and which one is least flexible?

9)Root PLaning is between? a)free gingival margin to JE b)alveolar crest and MGJ?

10) 8 yo pt comes with permanent incisor intruded , complains of headache and nausea, what do you do? refer to physician or observe for 24 hrs and if does not go away refer to physician.

11)20 yo pt with intruded incisor no pain or sign of fracture do you do ortho or let it reerupt?ans : ortho

12) Which surface of the MB root of maxillary first molar is more prone to perforation? M, D, B, L ans : mesial

Thanks

correct me if iam wrong
rocknsun

 

[Gutthy]

Hi Guys:

I'm looking for this pharmaco booklet...people say thatis very helpful..if anyone knows about it pleaseeeee..,let me know...Thanks....

 

[docasrpa]

ques..
the half life of a drug is 4 hours.if 2 gram of the drug is given after every 4 hours, what will be the amount in grams at the end of the third dose?

ans is 3.5 gram ..can any1 xplain?

 

[drika11]

The answer is 3.5gm, in the first 4hr- 2gm is absorbed, in the 2nd 4hr - 1 gm is absorbed and 1gm is excreted, and in the 3rd 4hr - 0.5 gm is absorbed and 1.5 gm is excreted = 3.5 gm

 

[RocknSun]

nitrous oxide is not metabolised in body and is excreted via lungs

 

[AbstractDentist]

Nitrous oxide is not metabolized in body but it is excreted by the lungs because of the blood/gas partition coefficient.

 

[AbstractDentist]

Condensing osteitis - periapical inflammation but instead of bone destruction/resorption there is bone deposition.
Cementoblastoma- benign neoplasm of cementum,
Tooth may be vital in cementoblstoma whereas condensing osteitis it is not.




for every 4 hours the dose will reduce to its half
so after 1st 4 hour it will be -1mg
after taking next dose it would be total 3mg(1+2)
at end of 2nd 4 hour it would be 1.5 mg
and at the intake of 3rd dose it would be-1.5+2=3.5

 

[akka]

Hey guys, can you PLEASE try to answer these questions for me?

what is the easiest to remove after cementing a crown?
1)zn phosphate
2)polycarboxylate cement
3)GI
4)Resin

Which is most stable after 24hrs?
1)addition silicone
2)condensation silicone
3)polysulfide

Gold Shrinks?
1)2.4%
2)1.5%
3)1%

What is a picket fence? which cusp to which cusp?

Patient is on thiazides, what test should you take
1)electrolytes
2)cbc 3) wbc

With Coumadin, do you check PT or INR?
With hemophilia do you check PTT or PT?

With fracture of condyle what makes it go forward and medial?
a)medial pterygoid
b)lat pter
c)mylohyoid
d)digastric

Teeth with most cervical enamel projections (not pearls)
a)md molars
b)mx molars

What flap to use when want to remove mandibular tori?

What is number one reason implant fail?
a)mobility
b)screw loosening
c)cement washout

Heat cured indirect composite (increase strength) vs direct composite. Which is incorrect?
1)heat composite is harder
2)heat comp is more resistant to abreasion
3)heat = less irrit to tooth due to less shrinkage
4)heat indirect has better bonding to the dentin and enamel

What do you fill root canal with on primary tooth
1))gutta percha
2)sealer
3)zoe with accelerator
4)zoe without accelerator

why is the gingival 1/3 of crown lighter
1)error in shade selection
2) non-ideal ridge contour
3)improper framework design

Best to use with localized aggressive periodontitis
1)h2o2
2)chlorohexidine
3)systemic antibiotics

 

[momdent06]

1.the closest a dentist would have for comforting a patient.
a.look in the eye of the pts.
b.tap on the shoulder.

2.in order to give a pt.an incisor with younger look,wht can the dentist do?
a.straighten incisor edge
b.rounding incisor edge
c.move the line angles proximally
d.move height of contour gingivally.

3.which of the following materials is very hard to remove frm the pts.mouth?
a.alginate
b.polyether
c.polysulfide
d.silicone

4.the best and most effective way to remove stained mottled enamel
a.home bleaching
b.microabrasion tech.
c.office bleaching
d.walking bleaching

5.wht is the % os US population who sees a dentist each year?

6.atawic dental pts- what r their most common dental prob.
a.anodontia
b.maloccln
c.trauma

7.porcelain veneer- wht is the most imp.adv of resin veneer?
a.esthetics
b.cost
c.tooth preservation.

8.which feature provide the bond onlay the most retention?

9. a pt.who is taking dicumarol has most likely a history of?
a.angina
b.coronal infarct
c.cong.heart failure
d.cor pulmonale

10.the toxic effects of sulf ram is produced by which of its metabolites?
a.acetyl aldehyde
b.formaldehyde
c.gluteraldehyde

11.wht is the most definite way to diff. ameloblastoma and odon.keratocyst?
a.smear cytology
b.reactive light microscopy
c.reflective microscopy

12.which iintraoral site is the most common site of melanoma?
a.buccal mucosa
b.hard palate
c.floor of the mouth
d.gingiva
e.tongue

13.wht metal element of cobalt chromium alloy wud provide the anti-corrosion property?
a.cobalt
b.chromium
c.both
d.neither

14.which one cannot be observed on x-ray
canal calcifin.
root buccal curvature
canal nos.
the apical condn.

15.wht will make u suspect tht a pt. has nursing bottle caries?
a.caries bucally on mand.ant teeth
b.caries bucally on max.ant teeth.

16.best way to image TMJ
panoramic
MRI
CT
transcranial

17.in making radiographs,which controls the mean energy of the x-ray
mA
kVp
focal spot size
exposure time

18.which nerve in involved in LeFort 2 #
gr.palatine
infraorbital
nasopalatine
post.superior

19.wht % of lower first molar have 4 canals
15%
35%
55%
2%
25%

20.which best describes the interpersonal dist. zone in which dentist usually treat their pt.
social
intimate
public
personal

21.biotransformation is all except
conugation
covalent bond
hydrolysis
oxdn

22.whic prop of sodium hypoclorite is most undesirable
smell
tendency to bleach dentin
toxicity to vital dentin
corrosive action on endo files
reaction with chelating agents

23.wht is the activity of caries if sealed off with restn.?
regress
no activity
increase

 

[akka]

1.the closest a dentist would have for comforting a patient.
a.look in the eye of the pts.
b.tap on the shoulder.**

2.in order to give a pt.an incisor with younger look,wht can the dentist do?
a.straighten incisor edge
b.rounding incisor edge**
c.move the line angles proximally
d.move height of contour gingivally.

3.which of the following materials is very hard to remove frm the pts.mouth?
a.alginate
b.polyether**
c.polysulfide
d.silicone

4.the best and most effective way to remove stained mottled enamel
a.home bleaching
b.microabrasion tech**.
c.office bleaching
d.walking bleaching

5.wht is the % os US population who sees a dentist each year?60%

6.atawic dental pts- what r their most common dental prob.
a.anodontia
b.maloccln
c.trauma
whats atawic?

7.porcelain veneer- wht is the most imp.adv of resin veneer?
a.esthetics
b.cost
c.tooth preservation.** i think

8.which feature provide the bond onlay the most retention?

9. a pt.who is taking dicumarol has most likely a history of?
a.angina
b.coronal infarct
c.cong.heart failure** i think
d.cor pulmonale

10.the toxic effects of sulf ram is produced by which of its metabolites?
a.acetyl aldehyde
b.formaldehyde
c.gluteraldehyde

11.wht is the most definite way to diff. ameloblastoma and odon.keratocyst?
a.smear cytology** not sure
b.reactive light microscopy
c.reflective microscopy

12.which iintraoral site is the most common site of melanoma?
a.buccal mucosa
b.hard palate**
c.floor of the mouth
d.gingiva
e.tongue

13.wht metal element of cobalt chromium alloy wud provide the anti-corrosion property?
a.cobalt
b.chromium**
c.both
d.neither

14.which one cannot be observed on x-ray
canal calcifin.
root buccal curvature**
canal nos.
the apical condn.

15.wht will make u suspect tht a pt. has nursing bottle caries?
a.caries bucally on mand.ant teeth
b.caries bucally on max.ant teeth.**

16.best way to image TMJ
panoramic
MRI**
CT
transcranial

17.in making radiographs,which controls the mean energy of the x-ray
mA
kVp
focal spot size
exposure time

18.which nerve in involved in LeFort 2 #
gr.palatine
infraorbital**
nasopalatine
post.superior

19.wht % of lower first molar have 4 canals
15%
35%** i think?
55%
2%
25%

20.which best describes the interpersonal dist. zone in which dentist usually treat their pt.
social
intimate** think i saw this somewhere
public
personal

21.biotransformation is all except
conugation
covalent bond
hydrolysis
oxdn

22.whic prop of sodium hypoclorite is most undesirable
smell**
tendency to bleach dentin
toxicity to vital dentin
corrosive action on endo files
reaction with chelating agents

23.wht is the activity of caries if sealed off with restn.?
regress
no activity**
increase

I think these are the answers. Alot of these are repeats from old exams

 

[AbstractDentist]

10.the toxic effects of sulf ram is produced by which of its metabolites?
a.acetyl aldehyde
b.formaldehyde
c.gluteraldehyde

ans
a.acetyl aldehyde

1.biotransformation is all except
conugation
covalent bond
hydrolysis
oxdn

ans
covalent bond(i think)

 

[AbstractDentist]

6.atawic dental pts- what r their most common dental prob.
a.anodontia
b.maloccln
c.trauma
whats atawic?

I guess it is ataxia...type of cerebral palsy
Usually causes malocclusion due to muscular imbalance..
(i think)

 

[AbstractDentist]

Which is most stable after 24hrs?
1)addition silicone👍
2)condensation silicone
3)polysulfide


Patient is on thiazides, what test should you take
Electrolytes.👍
2)cbc 3) wbc


With fracture of condyle what makes it go forward and medial?
a)medial pterygoid
b)lat pter👍
c)mylohyoid
d)digastric

What is number one reason implant fail?
a)mobility👍
b)screw loosening
c)cement washout

What do you fill root canal with on primary tooth
1))gutta percha
2)sealer
3) Zoe with accelerator👍
4)zoe without accelerator

 

[momdent06]

thnx a ton.....
all the best to all who r appearing....

 

[akka]

with coumadin or warfarin do you check PT or INR?thanks

 

[AbstractDentist]

For anticoagulants you check INR, it is a preferred test, as it is standardized where as PT has different values for differesnt labs

 

[RocknSun]

A recently introduced local anesthetic agent is available in 0.5% buffered aqueous
solution. The maximum amount recommended for anesthesia over a 4-hour
period is 30 mg. This amount is contained in how many milliliters of the local
anesthetic?
a. 3
b. 6
c. 12
d. 24


thanks in advance

 

[AbstractDentist]

6ml (i think)
calculation
0.5%=5mg/ml
max 30mg
therefore,
30/5=6


Quote:
Originally Posted by ardzah View Post
What is the Max amount of lidocain 2% with epinephrin 1:100000 for 44lb kid?
a)60mg
b)80mg
c)100mg
d)120mg
The answer is 88 mg......hence i would go wid choice (B).......here's how i calculated it.......the recommended dosage is 4.4mg/Kg of body weight or 2mg/Pound.......
hope this helps.....


According to Monheim(LA textbook)
Lidocaine dose is 4.4 mg/kg=2mg/lb WHEN NOT ACCOMPANIED BY VASOCONSTRICTOR)
and
7mg/kg=3.2/lb when used with 1:50000 or 1,00,000 epinephrine

So this means that the right choice would be 120mg because 140mg is not the option....

 

[LaValencia]

38. reason not to have to replace class II amalgam? Open contact packing food, fracture at axiopulpal line angle area, recurrent decay radiographically, occlusal margins over carved

39. how to keep distal box of amalgam from being displaced proximally? Proximal retention grooves, converge facial and lingual walls, widen isthmus


41. after etch and primer, hybrid layer formed by what?


44. veracity as it refers to ethics?

39: proximal retention grooves appears to be best ans.

41: Hybrid layer consists of acid etched collagen fbers exposed on dentin surface impregnated with resin monomer (primer)

 

[LaValencia]

6ml (i think)
calculation
0.5%=5mg/ml
max 30mg
therefore,
30/5=6


Quote:
Originally Posted by ardzah View Post
What is the Max amount of lidocain 2% with epinephrin 1:100000 for 44lb kid?
a)60mg
b)80mg
c)100mg
d)120mg
The answer is 88 mg......hence i would go wid choice (B).......here's how i calculated it.......the recommended dosage is 4.4mg/Kg of body weight or 2mg/Pound.......
hope this helps.....


According to Monheim(LA textbook)
Lidocaine dose is 4.4 mg/kg=2mg/lb WHEN NOT ACCOMPANIED BY VASOCONSTRICTOR)
and
7mg/kg=3.2/lb when used with 1:50000 or 1,00,000 epinephrine

So this means that the right choice would be 120mg because 140mg is not the option....

Tricky question. According to Malamed text, manufacturer recommends 6.6 mg/kg but malamed recommends 4.4 mg/kg or 2.0 mg/lb. I think I would go with author since it is more conservative, but who knows.

 

[LaValencia]

A recently introduced local anesthetic agent is available in 0.5% buffered aqueous
solution. The maximum amount recommended for anesthesia over a 4-hour
period is 30 mg. This amount is contained in how many milliliters of the local
anesthetic?
a. 3
b. 6
c. 12
d. 24


thanks in advance

ans: b. 6 = 30 mg/ 0.5 %. Same calculation for lidocaine: 2% * 1.8 ml cartridge = 36 mg.

 

[AbstractDentist]

Is it specified in Malamed??