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

 

[botulism]

A 6-year old patient has a larger than average diastema between the maxillary central incisors. The radiographic examination shows a mesiodens. In order to manage the diastema, you should extract the mesiodens
A. after its complete eruption.
B. once the patient has reached the age of 12.
C. only if it develops into a cystic lesion.
D. as soon as possible.

At this point the permanent maxillary central incisors have not erupted yet...this diastema can be a sign that these teeth will have a hard time erupting...which would an indication for extraction...but at the same time some papers say that you should wait till 2/3 of the roots are formed before removing the mesiodent in order to prevent damage to the permanent teeth....( with extraction between 8-10 years old---- not 12) so I think this question was badly formulated..I think depending the dentist could go either way based in clinical experience and the individual case.
I personaly think that D is the right one...but I have a feeling by the way the question was formulated that the "right" answer is B.

What do you guys think???

A: As soon as possible

Early diagnosis and treatment often are crucial in minimizing the aesthetics and functional problems of the adjacent teeth (and considering all the consequences of late therapy such as delayed eruption, resorption of adjacent teeth, development of odontogenic cysts and tumors, just to name a few). Because only 7% to 20% of supernumerary teeth exist without clinical complications, the standard of care is early removal of accessory teeth.

 

[botulism]

which of the foll is a hydrophilic impression material

alginate
pvs
polyether
condensation silicone
polysulphide

A: Alginate

 

[botulism]

which of the foll composite materials is least polishable ?
hybrid
micro hybrid
macro filled
micro filled

A:Macrofilled

which of the foll not used to restore incisal edge of tooth

micro hybrid
macrofilled
hybrid
microfilled

A: Hybrid

 

[botulism]

when matching shade ,, the clinician should stand between patient and the light source

true or false

A: False

 

[botulism]

definition of retention as applied to cast restoration is the ability of the restoration to resist dislodgement by forces directed in

apical
oblique
horizontal
occlusally and parallell to path of insertion .

A: occlusally and parallell to path of insertion

 

[perav]

Atropine is useful in organophosphorous poisoning by inhibiting
A. Peripheral cholinergic actions
B. Sympathetic nerve fibres
C. Both central and peripheral actions
D. Central cholinergic actions

 

[botulism]

which of the statements is not true regarding proximal walls of a clss 2 composite

accessible margins beveled
inaccessible margins termnate a right anles to the tooth
gingival margins should be planned with a GMT
all unsupported enamel shoud be removed
none of the above

A: all unsupported enamel shoud be removed (if I will be the one to answer this question, this will be my choice)

Tha main advantages of composite resins are their relatively similar coefficient of thermal expansion to tooth structure, their strength and resistance to abrasion ( the latter characteristic, is only of advantage compared to silicate cement and arylic).
Advantages versus amalgam for classes I, II, and VI cavity preparations:
-esthetics
-conservation of tooth structure
-improved resistance to microleakage
-strengthening of the remaining tooth structure etcs.

so with all these advantages it shows that a bonded composite restoration has the capacity to strengthen the tooth and that conservation of tooth structure is of paramount importance. There's no need to weaken tooth structure by the unncessary removal of all unsupported enamel.

 

[LKY]

I'm not sure this is the right answer.. if you say all unsupported angle is not right that mean the C answer will be wrong too, because planning the gingival margin with GMT is to removed unsupported enamel in 1/3 enamel in cervical region...I more lean to b as a right answer, unaccessible margins terminate at right anles to the tooth unsupporte, II beleve unaccessible margin in here is means by the inner margin, it should be round to prevent the void during the condensation.

Besides that Composite resin don't have relative similar Coef of thermal with tooth, it is gold, Composite have relative similar coef exp with amalgam, amalgam is kind of in between gold and comp.

A: all unsupported enamel shoud be removed (if I will be the one to answer this question, this will be my choice)

Tha main advantages of composite resins are their relatively similar coefficient of thermal expansion to tooth structure, their strength and resistance to abrasion ( the latter characteristic, is only of advantage compared to silicate cement and arylic).
Advantages versus amalgam for classes I, II, and VI cavity preparations:
-esthetics
-conservation of tooth structure
-improved resistance to microleakage
-strengthening of the remaining tooth structure etcs.

so with all these advantages it shows that a bonded composite restoration has the capacity to strengthen the tooth and that conservation of tooth structure is of paramount importance. There's no need to weaken tooth structure by the unncessary removal of all unsupported enamel.

 

[pendejodo]

any body has the list of bacterias seems to be comun questions any good clue? Which of the following is the LEAST likely to have played an etiologic role in this patient's periodontal disease?

Wolinella recta
Eikenella corrodens
Bacteroides gingivalis
Actinomyces viscosus $$$$$
Actinobacillus actinomycetemcomitans

 

[botulism]

I'm not sure this is the right answer.. if you say all unsupported angle is not right that mean the C answer will be wrong too, because planning the gingival margin with GMT is to removed unsupported enamel in 1/3 enamel in cervical region...I more lean to b as a right answer, unaccessible margins terminate at right anles to the tooth unsupporte, II beleve unaccessible margin in here is means by the inner margin, it should be round to prevent the void during the condensation.

Besides that Composite resin don't have relative similar Coef of thermal with tooth, it is gold, Composite have relative similar coef exp with amalgam, amalgam is kind of in between gold and comp.

Besides that Composite resin don't have relative similar Coef of thermal with tooth, it is gold, Composite have relative similar coef exp with amalgam, amalgam is kind of in between gold and comp.[/QUOTE] In agreement with this one...

But about the C Not very sure also but i see your point with regards to this one.
In the past, it was recommended by some that preparation design for posterior resin composite restoration be patterned after the traditional amalgam preparation as described by G. V. Black. Researchers today, recommend a more conservative approach. To take advantage of resin composite's positive properties and to minimized its negative ones, the adhesive preparation has evolved. This design limits the removal of tooth structure to that needed to eliminate carious lesions and fragile enamel . Areas of enamel that are unsupported by dentin, BUT NOT FRIABLE, this ENAMEL SHOULD NOT REMOVED [Sturdevant].

Thanks for the clarifications🙂 .

 

[botulism]

any body has the list of bacterias seems to be comun questions any good clue? Which of the following is the LEAST likely to have played an etiologic role in this patient's periodontal disease?

Wolinella recta
Eikenella corrodens
Bacteroides gingivalis
Actinomyces viscosus $$$$$
Actinobacillus actinomycetemcomitans

ADULT PERIODONTITIS:
PORPHYROMONAS GINGIVALIS
TREPONEMA DENTICOLA
TANNERELLA FORSYTHIA (RED COMPLEX)

PREGNANCY GINGIVITIS
PREVOTELLA INTERMEDIUS

JUVENILE PERIODONTITIS
HAEMOPHILUS
ACTINOBACILLUS ACTINOMYCETEMCOMITANS
STRAINS OF CAPNOCYTOPHAGA

NECROTIZING PERIODONTAL DISEASES
PREVOTELLA NIGRESCENS
SPIROCHETES

GOODLUCK!

 

[dentalgirl1]

After gingivectomy how does the site heal?
-from the epithelium of the pockets
-epithelium of the adjacent alveolar mucosa
-endothelium of the blood vessels
-primary intention

 

[pendejodo]

After gingivectomy how does the site heal?
-from the epithelium of the pockets$$$$
-epithelium of the adjacent alveolar mucosa$$$$$$$$$$$ this is my guess
-endothelium of the blood vessels
-primary intention

but I remenber they form a special surface name ?????? thaks botulism.................va

 

[botulism]

After gingivectomy how does the site heal?
-from the epithelium of the pockets
-epithelium of the adjacent alveolar mucosa
-endothelium of the blood vessels
-primary intention

Within few days ff. excision of the inflamed gingival soft tissues coronal to the base of the periodontal pocket, epithelial cells start to migrate over wound surface. The epithelialization of the gingivectomy wound is usually complete within 7-14 days ff. surgery. During the ff. weeks a new dentogingival unit is formed. The fibroblasts in the supra-alveolar tissue adjacent to the tooth surface proliferate and new connective tissue is laid down.

 

[perav]

When having difficulty matching the colors of adjacent
teeth for a bridge, select a shade that is
a. lower color saturation and less gray
b. higher color saturation and less gray
c. higher color saturation and more gray
d. lower color saturation and more gray

 

[perav]

inrestoring a canine proracted occlusion anterior over bite of 2mm. the buccal cusps of posterior teeth should be flat .because they will guide protrusion

both r true
only second statement is true
both r false
only first statement is true

 

[dentalgirl1]

Major advantage of a patient treated with osseointegrated
dental implants is a change in the pattern of edentulous ridge
resoprtion which of the following is the reason?
delayed loading
endosteal loading
seqential loading
progressive l
mucoperiosteal

increasing water in a mix of gypsum die stone will most likely
more expan,less strength[/B]
less expansion, less strength

[U]current technique for reducing pocket depth except?[/U]
gingivectomy
gingival curretage
s&R
debridement surgery
osseous surgery

before beginning tooth preparation, the dentist visualize the outline to
establish convenience form
est. resistance and retention
prevent over cutting and overextension

pharmacokinetics and biotransformation of drugs is affected in the elderly?

rapid biotransformation
increased half life
decreased renal excretion

Tylenol and ASA are same in all the following except?

modes of action
toxicity
onset of action
duration of action

how would you treat surgically skeletal open bite
osteotomy
anterior max surgery
lefort 1
lefort 2

Max dose of Nitrous for a child
50%

Implant retained complete denture.How many implants wil you place
2 max 2 man
4 max 2 man

What is the common reason for toxic reaction to local anesthesia
hypersensitivty to anesthesia
increase vascular concentration of anesthesia
hypersensitivity to epi

best antiobiotic for children with dental infection?
pencillin
amoxicillin

most of dental fear come from
patient's experiences
family and friends

all of the following are affected in removed plaque except one
toothpick
h2o irrigation

what is Bennet angle?

 

[perav]

The greatest potential hazard of chronic mercury toxicity comes from
a. skin contact with mercury
b. inhalation of mercury vapor
c. amalgam restorations in a patient
d. ingestion of amalgam scrap during removal of an old restoration

 

[perav]

http://www.personal.leeds.ac.uk/~den9pf/jaw_movements.htm

what is bennet angle

 

[botulism]

The greatest potential hazard of chronic mercury toxicity comes from
a. skin contact with mercury
b. inhalation of mercury vapor ----- answer
c. amalgam restorations in a patient
d. ingestion of amalgam scrap during removal of an old restoration

That is why it is important to know the potential sources of mercury vapor such as:
- spills
- leaky dispensers or capsules
- polishing amalgams
- removing amalgams
- heating of amalgam-contaminated instruments

 

[botulism]

Atropine is useful in organophosphorous poisoning by inhibiting
A. Peripheral cholinergic actions
B. Sympathetic nerve fibres
C. Both central and peripheral actions ------answer
D. Central cholinergic actions

This anticholinesterase typically produce a spectrum of peripheral muscarinic and nicotinic effects as well as some CNS effects when used as an antidote to anticholinesterases toxicity.

 

[perav]

Tylenol and ASA are same in all the following except?

modes of action ANS
toxicity
onset of action
duration of action

how would you treat surgically skeletal open bite
osteotomy
anterior max surgery
lefort 1 ANS
lefort 2

 

[dralana1977]

. The selection of a vasoconstrictor for a local anesthetic depends upon
A. the duration of the operation.
B. the need for hemostasis.
C. the medical status of the patient.
D. all of the above....right

is this the right answer???😕

 

[Draustchile]

The greatest potential hazard of chronic mercury toxicity comes from
a. skin contact with mercury
b. inhalation of mercury vapor
c. amalgam restorations in a patient
d. ingestion of amalgam scrap during removal of an old restoration

The answer is b inhalation

 

[Draustchile]

Major advantage of a patient treated with osseointegrated
dental implants is a change in the pattern of edentulous ridge
resoprtion which of the following is the reason?
delayed loading
endosteal loading
seqential loading
progressive l
mucoperiosteal

increasing water in a mix of gypsum die stone will most likely
more expan,less strength[/b]
less expansion, less strength


before beginning tooth preparation, the dentist visualize the outline to
establish convenience form
est. resistance and retention
prevent over cutting and overextension

pharmacokinetics and biotransformation of drugs is affected in the elderly?

rapid biotransformation
increased half life
decreased renal excretion

Tylenol and ASA are same in all the following except?

modes of action
toxicity
onset of action
duration of action

how would you treat surgically skeletal open bite
osteotomy
anterior max surgery
lefort 1
lefort 2

Max dose of Nitrous for a child
50%

Implant retained complete denture.How many implants wil you place
2 max 2 man
4 max 2 man

What is the common reason for toxic reaction to local anesthesia
hypersensitivty to anesthesia
increase vascular concentration of anesthesia
hypersensitivity to epi

best antiobiotic for children with dental infection?
pencillin
amoxicillin

most of dental fear come from
patient's experiences
family and friends

all of the following are affected in removed plaque except one
toothpick
h2o irrigation

what is Bennet angle?

[U]current technique for reducing pocket depth except?[/u]
gingivectomy
gingival curretage
s&R
debridement surgery
osseous surgery

this answer is osseous surgery, cause what u try to do is to preserve osseous tissueand not to get rid of it

 

[perav]

Excessive depth of the posterior palatal seal (bead) usually results in

a denture sore spot
increased gaggging
greater retention
a tingling sensation






In a complete maxillary denture, accurate adaptation of the border of the facial flange affects which of the following the most?

speech
support
stability
esthetics

 

[botulism]

Excessive depth of the posterior palatal seal (bead) usually results in

a denture sore spot ---answer
increased gaggging
greater retention
a tingling sensation

In a complete maxillary denture, accurate adaptation of the border of the facial flange affects which of the following the most?

speech
support
stability ---answer
esthetic

 

[drika11]

🙂 during the prep of a Cl II cavity, which perm teeth pulp horns will be most subject to accidental exposure?
A. Distofacial of max 1st molar
B. Distofacial of man 1st molar
c. Facial of mand 1st PM
D. Lingual of mand 1st PM

the day after receiving and Inf Alveolar Nerve Block, pt experiences limited ability to open his mouth Which
structure was most probably injured?
A. Medial Pterygoid muscle
B. The deep fibers of masseter muscle
C. The posterior belly of digstric muscle
D. The inferior head of lat pterygoid muscle

A new pt had RCT performed 7mo. ago in another country. No historical xrays are available. The Root canal filling
appears to be satisfactory, the tooth is assymptomatic, there is no associated sinus tract. However there is a small
P.A. radiolucency. Which is indicated?
A. inc & drainage
B. Nonsurgical retx
c. reevaluation in 6 mo
d. Apicoectomy and apical amalgam
E. px of appropriate antib.

what would be the end result and prognosis of untreated internal resorption?
a. perforation into external surface of root which whic would heal if left undisturbed
b. perforation into external surface of root with marked low prognosis for any tx
c.no untoward incident would occur provided no future trauma is sustained
d. calcification of the root canal system with a guarded prognosis

a lesions of non endodontic origin remains at the apex of the suspected tooth regardless of xray cone angulations
a. true
b. false

while viewing a working length radiograph of # 5 you discover another root on the mesial shot (xray cone mesial) The
2nd root seems to be distal on the mesial root. which anatomic root is it?
a. palatal
b.distal
c. buccal
d. mesial
the buccal rule object can be used for vertical angulations as well
a. true
b. false
on clinical find tooth 3 31 is non responsive to thermal & electric testing and also not responsive to percussion or
palpation. There is radiolucency around the distal root of # 31 with extensive 2ary decau under a class 2 amalgam.
What do next?
a. refer for endo therapy of # 31
b. access the tooth yourself for pulpectomy and CaOh dressing
c. prescrbe antib and pain killers
the pain is evoked by palpating along the lateral border of the ramus of mand. What is most likely cause of pt's
pain and how would you confirm this?
a. masseter muscle refering pain to the lower molars confirmed by palpation of the muscle
b.mylohyoid refering pain to the lower molars confirmed by local anesthesia
c. fracture of the ramus confirmed by digital palpation
d. psychological confirmed by prescription of anti depressants

 

[thaizemelo]

Does anyone knows where I could find the Tanaka-Johnston values??

 

[perav]

🙂 during the prep of a Cl II cavity, which perm teeth pulp horns will be most subject to accidental exposure?
A. Distofacial of max 1st molar
B. Distofacial of man 1st molar
c. Facial of mand 1st PMD. Lingual of mand 1st PM

the day after receiving and Inf Alveolar Nerve Block, pt experiences limited ability to open his mouth Which
structure was most probably injured?
A. Medial Pterygoid muscle
B. The deep fibers of masseter muscle
C. The posterior belly of digstric muscle
D. The inferior head of lat pterygoid muscle

A new pt had RCT performed 7mo. ago in another country. No historical xrays are available. The Root canal filling
appears to be satisfactory, the tooth is assymptomatic, there is no associated sinus tract. However there is a small
P.A. radiolucency. Which is indicated?
A. inc & drainage
B. Nonsurgical retx
c. reevaluation in 6 mod. Apicoectomy and apical amalgam
E. px of appropriate antib.

what would be the end result and prognosis of untreated internal resorption?
a. perforation into external surface of root which whic would heal if left undisturbed
b. perforation into external surface of root with marked low prognosis for any txc.no untoward incident would occur provided no future trauma is sustained
d. calcification of the root canal system with a guarded prognosis

a lesions of non endodontic origin remains at the apex of the suspected tooth regardless of xray cone angulations
a. true
b. false
while viewing a working length radiograph of # 5 you discover another root on the mesial shot (xray cone mesial) The
2nd root seems to be distal on the mesial root. which anatomic root is it?
a. palatal
b.distal
c. buccal
d. mesial
the buccal rule object can be used for vertical angulations as well
a. trueb.
false
on clinical find tooth 3 31 is non responsive to thermal & electric testing and also not responsive to percussion or
palpation. There is radiolucency around the distal root of # 31 with extensive 2ary decau under a class 2 amalgam.
What do next?
a. refer for endo therapy of # 31b. access the tooth yourself for pulpectomy and CaOh dressing
c. prescrbe antib and pain killers

these r the answers

 

[perav]

Excessive depth of the posterior palatal seal (bead) usually results in

a denture sore spot ---answer
increased gaggging
greater retention
a tingling sensation

In a complete maxillary denture, accurate adaptation of the border of the facial flange affects which of the following the most?

speech
support
stability ---answer
esthetic

''

dont you think the extended posterior palatal seal would result in gagging. sore spots are mostly on firm tissue like the ridge crest , whereas the post palaltal seal is in commpressible tissue

 

[DDS NO 1]

yes it will cause gaging... if extended ,but if thick as it states in the question then may cause sore spot
someone please ans my questions also which i have posted from 1 to 50

 

[drika11]

🙁
hI PERAV I DONT UNDERSTAND THE QUESTION CAN YOU EXPLAIN THE ANSWER TO ME?

while viewing a working length radiograph of # 5 you discover another root on the mesial shot (xray cone mesial) The
2nd root seems to be distal on the mesial root. which anatomic root is it?
a. palatal
b.distal
c. buccal
d. mesial

 

[perav]

🙁
hI PERAV I DONT UNDERSTAND THE QUESTION CAN YOU EXPLAIN THE ANSWER TO ME?

while viewing a working length radiograph of # 5 you discover another root on the mesial shot (xray cone mesial) The
2nd root seems to be distal on the mesial root. which anatomic root is it?
a. palatal
b.distal
c. buccal
d. mesial

since the xray tube is mesial , and the root is distal it is buccal .
if the root was mesial , then it would on the same side of the xray tube and it would be lingual . it the SLOB rule same side lingual opp side buccal .

 

[dralana1977]

A surgical flap not repositioned over a bony base will result in
1. slower healing.
2. foreign body inflammatory reaction.
3. wound dehiscence.
4. necrosis of bone.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.

Can someone answer this question for me???

 

[pendejodo]

A surgical flap not repositioned over a bony base will result in
1. slower healing.
2. foreign body inflammatory reaction.
3. wound dehiscence.
4. necrosis of bone.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.

Can someone answer this question for me???

I believe is B any takers is anybady took the test yet$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$4😕

 

[DDS NO 1]

using b speed film exposure to the patient from 3 feet is 1 roentgen ,what would the exposure be if d film is used at a distance of 6 feet ...
ans give is 1/8 r other options are 1/4 .1/2 and 3/4 r .... pls explain this ans
i know that exposure=square of distance then the ans should be 1/4 ...??

 

[perav]

Major advantage of a patient treated with osseointegrated
dental implants is a change in the pattern of edentulous ridge
resoprtion which of the following is the reason?
delayed loading
endosteal loading
seqential loading
progressive l
mucoperiosteal


A Swedish research team led by P.I. Branemark coined the term osteointegration for a new concept based upon atraumatic implant placement and delayed implant loading

 

[LetMeIn]

This appeared on a recent exam.

Dysgeusia is often associated with:

a. head & neck radiation
b. trauma
c. tumor
d. nerve inflamation


Ans:A

 

[godbless]

This appeared on a recent exam.

Dysgeusia is often associated with:

a. head & neck radiation
b. trauma
c. tumor
d. nerve inflamation


Ans:A

i saw this qs also in my exam ystdy,just like many of the qs posted on this thread, i am surprised there were so many repetitions, isnt the answer trauma for this one?

 

[DDS NO 1]

yes even i think it is trauma......

 

[dent_mangalore]

i think it is tumor http://health.enotes.com/neurological-disorders-encyclopedia/dysgeusia

 

[perav]

yes even i think it is trauma......

it has to be radiation as radiation can cause xerostomia as a result change in taste sensation .

 

[cavity79]

I have a question
-a 5yr old child comes fot his 1st dental appointment...all teeth in proximal contacts..no evidence of caries or other pathology....recomended radiographs for the child
The answer in the released exam is 2 bite-wing radigraphs.....
i thought the answer sld be 2 bitewing and 4 periapial radiographs or 2 bitewings with a panaromic radiograph...can some body tell me which is correct answer

 

[perav]

I have a question
-a 5yr old child comes fot his 1st dental appointment...all teeth in proximal contacts..no evidence of caries or other pathology....recomended radiographs for the child
The answer in the released exam is 2 bite-wing radigraphs.....
i thought the answer sld be 2 bitewing and 4 periapial radiographs or 2 bitewings with a panaromic radiograph...can some body tell me which is correct answer

because of proximal contact u take bitewings, to know if there r any interproximal caries . the rest of the teeth have spacing so no need of other xrays . and also it mentions no caries in the patient

hence the answers .

 

[cavity79]

Thanks a lot for quick reponse..

 

[dentalgirl1]

Perav,
I think you are right, it has to be head and neck radiation

http://www.cancer.gov/cancertopics/pdq/supportivecare/oralcomplications/healthprofessional

 

[dentalgirl1]

Max does of Nitrous oxide for children?

50% or 30%

 

[cavity79]

what is the mode of following data set?
1,1,1,1,2,2,3,3,7,9(n=10, sum=30)
a)1 b)2 c)3

what is mode and how it is calculated?
answer is 1

 

[dentalgirl1]

can anyone help me out with the nitrous question