Nbd 2 Questions

[dentistgal]

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

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[perav]

Q)man with dentures for past 19 yrs has 6x3mm white lesion on left distofacial ridge area, pt unaware, what do you do?
Incision,
excision,
cytologic,
adjust and check in one week

since it is present for 19 years it must be already dysplastic . so we would do an incisional biopsy ,

 

[perav]

Q)what has biggest effect on success of flap?
Initial incision,
extensiveness of reflection,
oral hygiene post op,
final position of flap

post operative hygiene . (repeat question)

 

[perav]

Q)larger filler particles mean what?
Stronger
weaker
polishability

polishability

Composite resin also has a successful history for the esthetic restoration of fractured or carious anterior and posterior teeth. Early composite resin materials were tooth-colored but lacked color stability and polishability due to their large filler particle size. As materials developed, color stability and wear improved. However, many modern hybrids and microhybrids lose surface luster with time. Polish is dependent on the intrinsic filler particle size and fillers larger than .4 micron produce surfaces that dull after the polished surface is exposed to the oral environment. Even when the initial polish produces a glossy composite resin surface, the composite resin dulls. Microfilled composite resins maintain their polish since they have a mean filler particle size of .04 micron. Unfortunately, microfilled composite resins have inherent problems. The filler loading is lower, producing a weaker material that is unable to withstand the occlusal forces produced in large Class IV restorations.

 

[perav]

Q)maxillary tuberosity removal, use surgical stent why?
Prevent hematoma,
pt comfort

prevent hematoma formation

 

[perav]

Q)gingival index is what?
Ordinal,
nominal,
ratio,
integral

ordinal due to the arrangement in order of mild moderate severe gigivitis

 

[ash23wariya]

A pt has a drainning sinus apical to lateral incisor. The tooth which isrestoresd with a post and crown recieved root canal and apiocoectomy a year ago. radiology the tooth measures 19mm, treatmet of choice
1)retreat and refill wit gutta percha
2)retreat by surgery using a retrolfil amalgam.
ans is 2, why amalgam?

At atomic level X ray photos loose energy by
1)bremstrahlung interactions
2)Collision with other photos
3)compton and photoelectric process
4)spontaneous disintergration and mutation of photon energy
5)collision with nuclus of the absorbing atom.

the most common incision by oral surgeons is
1)an envelop
2)semilunar
3)y incision
4)z incision.


treaing of flap occurs most frequntly with
1)repeated incisin at the same place
2)envelop incisions
3)semilunar incisions


vitd deficieny causes secondary hyperparathryoidism abd osteoporosis. this causes loss of periodontal attachmenta nd loss of teeth
1) both statements are correct
2)1st statement is correct
3)2nd statement is correct
4)both ststements are incorrect
is it 4???

 

[ash23wariya]

)larger filler particles mean what?
Stronger
weaker
polishability
then shoudn`t it be stronger, as smaller filler particle better the polishability, and fillers are added yo improve strenght

 

[mesh]

A pt has a drainning sinus apical to lateral incisor. The tooth which isrestoresd with a post and crown recieved root canal and apiocoectomy a year ago. radiology the tooth measures 19mm, treatmet of choice
1)retreat and refill wit gutta percha
2)retreat by surgery using a retrolfil amalgam.
ans is 2, why amalgam?

At atomic level X ray photos loose energy by
1)bremstrahlung interactions
2)Collision with other photos
3)compton and photoelectric process
4)spontaneous disintergration and mutation of photon energy
5)collision with nuclus of the absorbing atom.

the most common incision by oral surgeons is
1)an envelop
2)semilunar
3)y incision
4)z incision.


treaing of flap occurs most frequntly with
1)repeated incisin at the same place
2)envelop incisions
3)semilunar incisions


vitd deficieny causes secondary hyperparathryoidism abd osteoporosis. this causes loss of periodontal attachmenta nd loss of teeth
1) both statements are correct
2)1st statement is correct
3)2nd statement is correct
4)both ststements are incorrect
is it 4???

At atomic level X ray photos loose energy by
1)bremstrahlung interactions
2)Collision with other photos
3)compton and photoelectric process
4)spontaneous disintergration and mutation of photon energy
5)collision with nuclus of the absorbing atom.

answer is 3

 

[mesh]

treaing of flap occurs most frequntly with
1)repeated incisin at the same place
2)envelop incisions
3)semilunar incisions
3 is correct

 

[mesh]

the most common incision by oral surgeons is
1)an envelop
2)semilunar
3)y incision
4)z incision.


4 is correct

 

[mesh]

vitd deficieny causes secondary hyperparathryoidism abd osteoporosis. this causes loss of periodontal attachmenta nd loss of teeth
1) both statements are correct
2)1st statement is correct
3)2nd statement is correct
4)both ststements are incorrect
is it 4???

both are incorrect i THINK

 

[dentistgal]

Q) hand rolled acrylic tray can’t be used for 24 hrs why?
Distortion,
needs to dry,
adhesive won’t stick

distortion

 

[dentistgal]

Q)what does not remove sulcular plaque?
Toothpick
nylon bush,
water pick,
powered brush,
floss

toothpick

 

[dentistgal]

the most common incision by oral surgeons is
1)an envelop
2)semilunar
3)y incision
4)z incision.


4 is correct

i think it should be envelop ?

 

[botulism]

vitd deficieny causes secondary hyperparathryoidism abd osteoporosis. this causes loss of periodontal attachmenta nd loss of teeth
1) both statements are correct
2)1st statement is correct
3)2nd statement is correct
4)both ststements are incorrect
is it 4???

both are incorrect i THINK

Yes you are right bc secondary hyperparathyroidism is usually caused by chronic renal failure leading to decreased calcium absorption, which in turn lead in a feedback loop and increased PTH. Vit. D def. and malabsorption are less commonn causes(K).
The one that is related to osteoporosis and exaggerated bone loss in the presence of plaque-related periodontitis is the primary hyperparathyroidism, and a similar response has been noted in indvs. who cannot properly utilize vit. D and among estrogen deficient women (PS).

 

[botulism]

Q)what has biggest effect on success of flap?
Initial incision,
extensiveness of reflection,
oral hygiene post op,
final position of flap

A: final position of the flap
The incision should be designed so that the blood supply of the flap is adequate. If the free end of the flap is wide and the base containing the blood supply is narrow, nutrition of the flap may be inadequate. The flap should contain all the structures overlying bone, including mucosa, submucosa, and periosteum, with special care given to include periosteum in the flap.

The flap should be sufficiently large that adequate vision and space for removal of bone are present without damaging the soft tissue edges.

The incision should always over bone that will not be removed, so that the sutured incisions are supported by bone. Incisions that harbor uncontrolled infection may cause rapid spread of infection.

 

[botulism]

A pt has a draining sinus apical to lateral incisor. The tooth which is restored with a post and crown received root canal and apiocoectomy a year ago, radiology the tooth measures 19mm, treatmet of choice
1)retreat and refill wit gutta percha
2)retreat by surgery using a retrolfil amalgam.
ans is 2, why amalgam?

Because it is easy to manipulate, readily available, well tolerated by soft tissues, radiopaque, and initially provides a tight apical seal.

 

[botulism]

Q)what is not an indication for restoring class V abrafaction?
Sensitivity,
esthetics,
prevention of decay,
prevention of further structure loss,
restoring physiological contour

A: prevention of decay since Class V Abfraction is the loss of tooth structure due to flexural forces that cause enamel rods to fracture and dislodge under occlusal load and stresses that are transmitted to the cervical area.
It is generally believed that non carious cervical lesions should be treated to protect remaining tooth structure if the amount of tooth structure lost is extensive or progressing, if esthetic is compromised, to control or reduced sensitivity, and to accomodate rpd clasp design.

 

[botulism]

)larger filler particles mean what?
Stronger
weaker
polishability
then shoudn`t it be stronger, as smaller filler particle better the polishability, and fillers are added to improve strenght

YES
They are stronger since they are more resistant to abrasion when incorporated in the resin than are unfilled resin.

 

[botulism]

Q)maxillary tuberosity removal, use surgical stent why?
Prevent hematoma,
pt comfort

A: Patient comfort - surgical stent should always be considered so that the period of healing will be more comfortable.
Other reasons:
Surgical stent is constructed to direct bilateral preprosthetic maxillary tuberosity reductions and mandibular alveolectomies.The stent is fabricated using unaltered articulated definitive casts. The stent allows the oral surgeon to replicate the desired vertical dimension of occlusion for a thorough assessment of the sufficiency of the surgical revisions ( in short as a reduction guide for maxillary tuberosity reduction).

 

[mesh]

 

[mesh]

toothpick

nopes its the waterpick double chked with the previous exams

 

[botulism]

Q)19 y/o female previously treated for endo fracture at level of alveolus; what to do to maintain esthetics?
FPD over remaining tooth structure
remove remaining tooth structure,
ortho to extrude remaing tooth structure

A: ortho to extrude remaing tooth structure, if the apical segment is long enough, forced eruption of this segment can be carried out to enable a restoration to be fabricated.

 

[botulism]

it is sensitivity according to the released exam i checked.

What is the year of the released exam bc they keep on changing their answers to some of their questions?

 

[mesh]

A: ortho to extrude remaing tooth structure, if the apical segment is long enough, forced eruption of this segment can be carried out to enable a restoration to be fabricated.

fpd no?

 

[mesh]

What is the year of the released exam bc they keep on changing their answers to some of their questions?[/QUOT
i think it was a diff question perhaps

 

[botulism]

fpd no?

Yup, verified from the txt (Pathway of the Pulp 8th ed. by COHEN p. 621 - Coronal Root Fracture )

 

[mesh]

A: final position of the flap
The incision should be designed so that the blood supply of the flap is adequate. If the free end of the flap is wide and the base containing the blood supply is narrow, nutrition of the flap may be inadequate. The flap should contain all the structures overlying bone, including mucosa, submucosa, and periosteum, with special care given to include periosteum in the flap.

The flap should be sufficiently large that adequate vision and space for removal of bone are present without damaging the soft tissue edges.

The incision should always over bone that will not be removed, so that the sutured incisions are supported by bone. Incisions that harbor uncontrolled infection may cause rapid spread of infection.

ummm its the post op care mentioned in the perio deck

 

[mesh]

Each of the following factors affect height of the cusps and depths of fossae on restorations except one. Which one is the exception?

a- curve of spee
b-intercondylar distance
c-vertical overlap of anterior teeth
d-horizontal overlap of anterior teeth
e-steepness of the articular eminence



i THINK its an e plz correct me if am wrong?

 

[perav]

Each of the following factors affect height of the cusps and depths of fossae on restorations except one. Which one is the exception?

a- curve of spee
b-intercondylar distance
c-vertical overlap of anterior teeth
d-horizontal overlap of anterior teeth
e-steepness of the articular eminence



i THINK its an e plz correct me if am wrong?

intercondylar distance ( question no 204 on released booklet L )

 

[perav]

ummm its the post op care mentioned in the perio deck

it is post op care . even with final position correct . if post op care is not proper . plaque can accumulate and cause a failure .

 

[perav]

13) what does the moyers probability chart predict when a transitional dentition analysis is performed?
a. the widths of mandibular anterior teeth
b. the space available for permanent canine and premolar
c. the width of permanent canines and premolars
d. the space needed for alignment of permanent mandibular central and lateral incisors

Measure space available for 3-4-5 on each side of the arch •Calculate from prediction table the size of 3-4-5 •Subtract #2 from #1 on each side

the width of permanent canines and premolars

 

[botulism]

it is post op care . even with final position correct . if post op care is not proper . plaque can accumulate and cause a failure .

yes this is true that it is very important that a patient keeps his/her mouth as clean as possible while the surgical site is healing as such postoperative infection will seriously impede the progress of normal wound healing. But awareness of the patient's general health is also important. Good health is a prerequisite to good healing. The poor healing qualities of diabetics serve as a classic example ( elevated blood sugar levels/hyperglycemia may suppress the host immune response and lead to poor wound healing and recurrent infections). Hence, successful healing should take place without complication if BASIC SURGICAL PRINCIPLES are followed .

 

[mesh]

Q)which relate best to the platelet count
bleeding time
inr
pt time

 

[perav]

Q)which relate best to the platelet count
bleeding time
inr
pt time

lack of platelates causes thombocytopenic purpura , which causes bleeding .
inr , is coneected to coumarin patients , which in turn is related to vit k clotting factors .
prothrombin time , also is related to patients taking coumarin , which in turn to vit k clotting factors .

so i think bleeding time is with platelates .

 

[mesh]

A: Patient comfort - surgical stent should always be considered so that the period of healing will be more comfortable.
Other reasons:
Surgical stent is constructed to direct bilateral preprosthetic maxillary tuberosity reductions and mandibular alveolectomies.The stent is fabricated using unaltered articulated definitive casts. The stent allows the oral surgeon to replicate the desired vertical dimension of occlusion for a thorough assessment of the sufficiency of the surgical revisions ( in short as a reduction guide for maxillary tuberosity reduction).

to prevent hematoma formation and to support the flap.confirmed from the oral surgery deck

 

[botulism]

to prevent hematoma formation and to support the flap.confirmed from the oral surgery deck

Thanks for the correction. Im also doing my review for part 2 and havent gone through with the decks. Please check out this thread also attached below bec. they also mentioned about surgical stent.

http://forums.studentdoctor.net/showthread.php?t=287626&highlight=stent+vertical+occlusion

 

[Tooth Fairy T]

Guys,
If you need the new dental decks for part 2...2007-2008 edition write me at
[email protected]
the price is $25 and are on a pdf format on a cd

 

[mesh]

well the question on that thread is also answered wrong.

4. Why is the surgical stent required for an immediate denture?
a. to give an idea of the anatomy of the region
b. prevent hematoma
c. to determine occlusion


in immediate dentures its there to give an idea of the anatomy of the region NOT to determine occlusion that too is in the prosthodontics decks.

 

[botulism]

well the question on that thread is also answered wrong.

4. Why is the surgical stent required for an immediate denture?
a. to give an idea of the anatomy of the region
b. prevent hematoma
c. to determine occlusion


in immediate dentures its there to give an idea of the anatomy of the region NOT to determine occlusion that too is in the prosthodontics decks.

thanks for the addn'l info.

 

[fido!]

moving the thread.......

 

[perav]

http://www1.umn.edu/perio/dent6613/Implant_I.pdf

for implants

 

[mesh]

any idea abt what happens to ur previous score if u retake the exam for eg the part 1 nbde? is the previous score annuled??

 

[dentistgal]

When u retake any part of part 1 NBD your previous score gets annulled.

 

[mesh]

Q)what you cant do with stain?
change hue
increase value
decrease value
change chroma

 

[dentistgal]

cant change hue

 

[aphistis]

cant change hue

Wrong.

 

[dentistgal]

what is the answer for the stain question ?

 

[mesh]

something to do with value i think

 

[mesh]

Q)last suture to ossify?