ACFD elegibility exam- question & answer discussion

[liwanag]

Hi everyone!

I have taken the EE in May this year and a bit disappointed with my 80% score. So, i will give it another try this September. Those of you who have taken the exam and planning to take it again, let's share those questions that we have remembered and discuss the answers thru private e-mail.

my e-mail add: [email protected]

thank you and goodluck

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[dr.ymp]

The most common complication of a venipuncture
is
A. syncope.
B. hematoma.
C. thrombophlebitis.
D. embolus

 

[meher]

The roots of primary molars in the absence of their
permanent successors
1. sometimes are partially resorbed and
become ankylosed.
2. may remain for years with no significant
resorption.
3. may remain for years partially resorbed.
4. are always resorbed.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.

- either A or E???
- what do u think guys?

A

 

[meher]

for 1 q the ans is all of the above since all of them are signs of gingivitis

for q 2 ans is b&d always occur in gingivitis
since loss of stippling is not always a sign of gingivitis, it can also occur in healthy gingiva.

what do u think?

i totally agree

 

[meher]

i think B

 

[junglebell]

A single tooth anterior crossbite found in a 9 year
old should
A. self-correct.
B. be treated with a removable appliance.
C. have 2 arch orthodontic treatment.
D. be treated in the complete permanent
dentition.
E. be observed and treated when the cuspids
have erupted

 

[liwanag]

A single tooth anterior crossbite found in a 9 year
old should
A. self-correct.
B. be treated with a removable appliance.
C. have 2 arch orthodontic treatment.
D. be treated in the complete permanent
dentition.
E. be observed and treated when the cuspids
have erupted

ans. b

 

[liwanag]

The most common complication of a venipuncture
is
A. syncope.
B. hematoma.
C. thrombophlebitis.
D. embolus

ans b

 

[liwanag]

just need to confirm if my ans are right.
thanks

1. composite resin is used in post & core crown provided that it has? prostho
a) ? b) enough ferrule c) autopolymerization d. ?

2. a hardened gold alloy compared to soft gold has? – dent mat/prostho
a) more plastic deformation than soft gold alloy b) less plastic deformation than the soft gold alloy c) the same plastic deformation of both d) ?

3. Methylmetacrylate composite resin is used in long span temporary restoration than conventional composite resin.
a. hardness
b. fracture toughness
c. low polymerization shrinkage
d. dimensional stability

 

[highbrow]

just need to confirm if my ans are right.
thanks

1. composite resin is used in post & core crown provided that it has? prostho
a) ? b) enough ferrule c) autopolymerization d. ?

2. a hardened gold alloy compared to soft gold has? – dent mat/prostho
a) more plastic deformation than soft gold alloy b) less plastic deformation than the soft gold alloy c) the same plastic deformation of both d) ?

3. Methylmetacrylate composite resin is used in long span temporary restoration than conventional composite resin.
a. hardness
b. fracture toughness
c. low polymerization shrinkage
d. dimensional stability

 

[highbrow]

...

 

[dr.ymp]

for no 3 its ....d

Hey highbrow,
Polymethymethacrylate have high polymerization shrinkage, high marginal leakage.... then how come it become more dimensionally stable then composite..... can you please explain

thnks

 

[PeterHayek]

1. composite resin is used in post & core crown provided that it has? prostho
a) ? b) enough ferrule c) autopolymerization d. ?

2. a hardened gold alloy compared to soft gold has? – dent mat/prostho
a) more plastic deformation than soft gold alloy b) less plastic deformation than the soft gold alloy c) the same plastic deformation of both d) ?

3. Methylmetacrylate composite resin is used in long span temporary restoration than conventional composite resin.
a. hardness
b. fracture toughness
c. low polymerization shrinkage
d. dimensional stability

 

[liwanag]

1. composite resin is used in post & core crown provided that it has? prostho
a) ? b) enough ferrule c) autopolymerization d. ?

2. a hardened gold alloy compared to soft gold has? – dent mat/prostho
a) more plastic deformation than soft gold alloy b) less plastic deformation than the soft gold alloy c) the same plastic deformation of both d) ?

3. Methylmetacrylate composite resin is used in long span temporary restoration than conventional composite resin.
a. hardness
b. fracture toughness
c. low polymerization shrinkage
d. dimensional stability

thanks

 

[Docn]

1-major vascular supply of buccal gingiva is thru
1)intra-alveolar vessels.
2)Superficial vessels.*
3)PDL vessel

2-Fracture of mandible during normal mastication; most probably due to:
A- Large intra-osseous lesion.
B- Osteoporosis.*
C- An impacted tooth along the lower border.

3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone. *
D- Bundle bone

4-A bitewing radiograph in a mixed dentition, should include what surfaces
1-Mesial of 1st primary molar to distal of 1st permanent molar.
2-Distal of canine to mesial of 1st permanent molar.
3-Mesial of 1st primary molar to mesial of 1st permanent molar.
4-Distal of canine to distal of 1st permanent molar.


5 -The most important mechanical property for a PFM long & narrow span brige is
1-elastic modulus. *
2-P.L.
3-Toughness.
4-Tensile strength.

 

[dr.ymp]

.......

 

[dr.ymp]

cells of granuloma originate from
a. epithelial rests cell [/COLOR]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

2. granulation tissue is composed of?
a. plasma cells b. epitheloid cells and phagocytes

3. during tension and compression which structure is less likely affected?
a. median palatine suture b. mandible (not sure)c. cartilage[/QUOTE]



What you guys think abt this questions....

 

[Docn]

cells of granuloma originate from
a. epithelial rests cell [/color]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

2. granulation tissue is composed of?
a. plasma cells b. epitheloid cells and phagocytes

3. during tension and compression which structure is less likely affected?
a. median palatine suture b. mandible (not sure)c. cartilagefor question no. 3 c

isnt this is correct i think so question no . 3 c



What you guys think abt this questions....[/quote]

 

[liwanag]

1-major vascular supply of buccal gingiva is thru
1)intra-alveolar vessels.
2)Superficial vessels.*
3)PDL vessel

2-Fracture of mandible during normal mastication; most probably due to:
A- Large intra-osseous lesion.
B- Osteoporosis.*
C- An impacted tooth along the lower border.

3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone. *
D- Bundle bone

4-A bitewing radiograph in a mixed dentition, should include what surfaces
1-Mesial of 1st primary molar to distal of 1st permanent molar.
2-Distal of canine to mesial of 1st permanent molar.
3-Mesial of 1st primary molar to mesial of 1st permanent molar.
4-Distal of canine to distal of 1st permanent molar.


5 -The most important mechanical property for a PFM long & narrow span brige is
1-elastic modulus. *
2-P.L.
3-Toughness.
4-Tensile strength.

 

[liwanag]

isnt this is correct i think so question no . 3 c



What you guys think abt this questions....

[/quote]
cells of granuloma originate from
a. epithelial rests cell [/color]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

2. granulation tissue is composed of?
a. plasma cells b. epitheloid cells and phagocytes

3. during tension and compression which structure is less likely affected?
a. median palatine suture b. mandible (not sure)c. cartilage
for question no. 3 c

 

[highbrow]

agreed....
cells of granuloma originate from
a. epithelial rests cell [/color]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

2. granulation tissue is composed of?
a. plasma cells b. epitheloid cells and phagocytes

3. during tension and compression which structure is less likely affected?
a. median palatine suture b. mandible (not sure)c. cartilage
for question no. 3 c[/quote]

 

[dr.ymp]

agreed....
cells of granuloma originate from
a. epithelial rests cell [/color]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

2. granulation tissue is composed of?
a. plasma cells b. epitheloid cells and phagocytes

3. during tension and compression which structure is less likely affected?
a. median palatine suture b. mandible (not sure)c. cartilage
for question no. 3 c

[/QUOTE]

For first question epthelial cells develo from epithelial rests... As they hadnt mention which cells of granuloma they are talking about if they are talking about epthelial lining then Epithelial rest cells are best answer as general any cell can develop from mesenchymal cells... So Is there anybody have some support for this question...

For last question how can you say cartilage as cartilage is affected by compression and that is reason why compression affect growth of mandible... Can anyone explain this...

Thnks

 

[chinabuffet]

3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone.
D- Bundle bone

confirmed by
http://www.tpub.com/dental1/27.htm

 

[highbrow]

But where does it say that the pocket occurs on cancellous bone???

3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone.
D- Bundle bone

confirmed by
http://www.tpub.com/dental1/27.htm

 

[highbrow]

3. Methylmetacrylate composite resin is used in long span temporary restoration than conventional composite resin.
a. hardness
b. fracture toughness
c. low polymerization shrinkage
d. dimensional stability
The reason we use mma temporary is coz its able to maintain occl n proximal contact relationships.......so doest that mean its more stable dimensionally????
n as it is how is its fracture toughness more than composite??

 

[liwanag]

cells of granuloma originate from
a. epithelial rests cell [/color]
b. odontogenic epithelial cells
c. odontoblasts
d. mesenchyme

granulomas are localized collections of modified macrophages, known as epitheloid cells, that have become transformed from a predominantly phagocytic cell to a more secretory cell in response to ingested antigens. the epitheloid cells, which are derived from blood monocytes, have abundant amounts of eosinophilic cytoplasm. Langerhans' foreign body-type giant cells, which form by fusion of the epitheloid cells, are often seen in granuloma. Granuloma are usually surrounded by a rim of mononuclear cells, predominantly lymphocytes. Granulomas may be progressively replaced by collagen.

Mesenchyme is embryonic connective tissue that is derived from the mesoderm which differentiates into hematopoietic and connective tissue, whereas mesenchymal stem cell (MSCs) do not differentiate into hematopoietic cells.

cartilage is less affected by compression
from the textbook: "cartilage is specifically adapted to certain pressure-related growth sites, because it is a special tissue uniquely structured to provide the capacity for growth in a field of compression."

please give ur explaination too. if u disagree...
thanks

 

[PeterHayek]

1-major vascular supply of buccal gingiva is thru
1)intra-alveolar vessels.
2)Superficial vessels.*
3)PDL vessel

2-Fracture of mandible during normal mastication; most probably due to:
A- Large intra-osseous lesion.
B- Osteoporosis.*
C- An impacted tooth along the lower border

3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone. *
D- Bundle bone

4-A bitewing radiograph in a mixed dentition, should include what surfaces
1-Mesial of 1st primary molar to distal of 1st permanent molar.
2-Distal of canine to mesial of 1st permanent molar.
3-Mesial of 1st primary molar to mesial of 1st permanent molar.
4-Distal of canine to distal of 1st permanent molar.


5 -The most important mechanical property for a PFM long & narrow span bridge is
1-elastic modulus. *
2-P.L.
3-Toughness.
4-Tensile strength.

 

[chinabuffet]

But where does it say that the pocket occurs on cancellous bone???

It actually doesn't. But what it does say is that the alveolar and trebecullar part is made from cancellous bone. This is where the infrabony pockets occurs. Not to mention none of the other answers really make sense.

 

[PeterHayek]

Originally Posted by chinabuffet
3-Infrabony pocket occurs mostly in
A- Cancellous bone.
B- Cortical bone.
C- Interseptal bone.
D- Bundle bone

The answer is cancellous bone. why? because :
Cortical bone is not affected by pockets
Answer C is not correct too because if you have a 3 walls or 4 walls pocket, it includes the buccal and lingual bone too
Bundle bone is the immature bone surrounding tendons and ligaments

 

[docnc]

For an otherwise healthy patient, with an acute localized periodontal abscess, initial treatment must include
A. scaling and root planing.
B. occlusal adjustment.
C. prescription of an antibiotic.
D. prescription of an analgesic.

what about drainage ???
cause the condition is acute n in acute cases you can't go for root planing..first the pain has to be control & then scaling & root planing is prefered...
correct me if i am wrong

The most likely cause of tooth loss following a tunneling procedure to provide complete access for a mandibular Class III furcation involvement is
A. root caries.
B. root sensitivity.
C. pulpal involvement.
D. recurrent pocketing

cause there is loss of epithelial attachment leading to class III furcation involvement that will weaken the attachment of the tooth & will leads to mobility & finally tooth loss.
correct me if i am wrong

 

[docnc]

Tissue conditioning most frequently used to treat
A. Epulis fissuratum
b. papillary hyperplasia of the candida albicans
c. traumatized mucosa caused by ill-fitting denture

ans c is correct

 

[PeterHayek]

For an otherwise healthy patient, with an acute localized periodontal abscess, initial treatment must include
A. scaling and root planing.
B. occlusal adjustment.
C. prescription of an antibiotic.
D. prescription of an analgesic.

what about drainage ???
cause the condition is acute n in acute cases you can't go for root planing..first the pain has to be control & then scaling & root planing is prefered...
correct me if i am wrong scaling and root planing is the drainage

http://www1.umn.edu/perio/dent6613/Acute_Perio.pdf (University of Minnesota 2007)

The most likely cause of tooth loss following a tunneling procedure to provide complete access for a mandibular Class III furcation involvement is
A. root caries. simply because it's difficult to clean (I'm sure of my answer)
B. root sensitivity.
C. pulpal involvement.
D. recurrent pocketing

cause there is loss of epithelial attachment leading to class III furcation involvement that will weaken the attachment of the tooth & will leads to mobility & finally tooth loss.
correct me if i am wrong

 

[PeterHayek]

ans c is correct

I totally agree

 

[liwanag]

For an otherwise healthy patient, with an acute localized periodontal abscess, initial treatment must include
A. scaling and root planing.
B. occlusal adjustment.
C. prescription of an antibiotic.
D. prescription of an analgesic.

what about drainage ???


The most likely cause of tooth loss following a tunneling procedure to provide complete access for a mandibular Class III furcation involvement is
A. root caries.
B. root sensitivity.
C. pulpal involvement.
D. recurrent pocketing

u can do drainage by scaling and root planing.

 

[PeterHayek]

GOODLUCK for everyone who's takin' the EE on Saturday!

 

[Dana_Popescu]

15 -The major reason not to extract a mandibular 3rd molar accompanied with pericoronitis is fear of
1-Osteomyelitits.
2-Spread of infection.
3-Anesthesia won’t work.
4-Bacteremia.


For choice no. 3:
The tratment for pericoronitis depends on its severity. In some minor lesions, the involved tooth can be extracted to relive impingement.In other cases, when swelling & pain are significant, definitive treatment may be deferred until inflamation subsides and good anesthesia can be obtained for extraction of the third molar( the most common pericoronitis)(pg.610-Pediatric dentistry Infancy through adolescence -second edition).


For choice no.1:
"The incidence of postoperative complications, specifically dry socket(alveolar osteitis) and postoperative infection, increase if the tooth is removed during the time of active infection."Peterson-"Contemporary Oral and Maxillo-Facial Surgery"-second edition-pg.231
"The occurence of dry socket after extraction of impacted mandibular 3rd molar is quite frequent."-pg 267 Peterson
"Osteomyelitis at the mandibule is more frequent than in maxilla, because of the best maxillary blood irigation.Also, osteomyelitis has like major predisposing factor odontogenic infections & fractures of the mandible."-pg.446 Peterson.

What choice is better? 1-Osteomyelitis, because there are great chances to occur or 3-anesthesia won't work, because other choices are not named exactly "dry socket or postoperative infection" ?
What do you think ?

 

[liwanag]

15 -The major reason not to extract a mandibular 3rd molar accompanied with pericoronitis is fear of
1-Osteomyelitits.
2-Spread of infection.
3-Anesthesia won’t work.
4-Bacteremia.


For choice no. 3:
The tratment for pericoronitis depends on its severity. In some minor lesions, the involved tooth can be extracted to relive impingement.In other cases, when swelling & pain are significant, definitive treatment may be deferred until inflamation subsides and good anesthesia can be obtained for extraction of the third molar( the most common pericoronitis)(pg.610-Pediatric dentistry Infancy through adolescence -second edition).


For choice no.1:
"The incidence of postoperative complications, specifically dry socket(alveolar osteitis) and postoperative infection, increase if the tooth is removed during the time of active infection."Peterson-"Contemporary Oral and Maxillo-Facial Surgery"-second edition-pg.231
"The occurence of dry socket after extraction of impacted mandibular 3rd molar is quite frequent."-pg 267 Peterson
"Osteomyelitis at the mandibule is more frequent than in maxilla, because of the best maxillary blood irigation.Also, osteomyelitis has like major predisposing factor odontogenic infections & fractures of the mandible."-pg.446 Peterson.

What choice is better? 1-Osteomyelitis, because there are great chances to occur or 3-anesthesia won't work, because other choices are not named exactly "dry socket or postoperative infection" ?
What do you think ?

my ans is spread of infection.

 

[Dana_Popescu]

You mean "spread of infection" from pericoronitis ?

 

[liwanag]

You mean "spread of infection" from pericoronitis ?

yes

 

[Dana_Popescu]

yeah, your point seems to be more appropiate then osteomyelitis. It didn't occur to me in the first place.Thanks for your help!

 

[liwanag]

yeah, your point seems to be more appropiate then osteomyelitis. It didn't occur to me in the first place.Thanks for your help!

ur welcome

 

[liwanag]

does submandibular gland drain into the internal jugular node?

does soft palate, base of the tongue drain into submandibular gland?

please ans, need ur help
thanks

 

[Dana_Popescu]

Give me 5 minutes and I will have your answers.

 

[liwanag]

Give me 5 minutes and I will have your answers.

thanks, will be waiting for ur reply

 

[Dana_Popescu]

Submandibular nodes drain in deep cervical nodes and jugular nodes.
The posterior nasopharinx, soft palate and ear drain into intraparotid nodes.

 

[liwanag]

Submandibular nodes drain in deep cervical nodes and jugular nodes.
The posterior nasopharinx, soft palate and ear drain into intraparotid nodes.

thanks

 

[PeterHayek]

15 -The major reason not to extract a mandibular 3rd molar accompanied with pericoronitis is fear of
1-Osteomyelitits.
2-Spread of infection.
3-Anesthesia won't work.
4-Bacteremia.

The major reason not to do any extraction of tooth with infection or interfere in any other acute infectious situations is the spread of infection
Control the infection first than operate

 

[dr.ymp]

Best of luck to everybody for saturday's exam and thnks for your valuable suggestion and explanation.


BEST OF LUCK


Dr.ymp

 

[highbrow]

1 A failing or ailing implant shows an increase in subgingival:
A. S. Mutans.
B. aerobic gram negative bacteria.
C. anaerobic gram negative bacteria.
D. black pigmented porphyrmonas.

2 Lowering mechanical stress to the crestal bone-implant interface can best be accomplished by the use of:
A. wide diameter implants (> 4.7 mm).
B. long implants (> 12 mm).
C. a cantilever prosthesis.
D. smooth cylinder implants.

what do u guys think are the best answers for these???

 

[liwanag]

1 A failing or ailing implant shows an increase in subgingival:
A. S. Mutans.
B. aerobic gram negative bacteria.
C. anaerobic gram negative bacteria.
D. black pigmented porphyrmonas.

2 Lowering mechanical stress to the crestal bone-implant interface can best be accomplished by the use of:
A. wide diameter implants (> 4.7 mm).
B. long implants (> 12 mm).
C. a cantilever prosthesis.
D. smooth cylinder implants.

what do u guys think are the best answers for these???

 

[PeterHayek]

Originally Posted by highbrow
1 A failing or ailing implant shows an increase in subgingival:
A. S. Mutans.
B. aerobic gram negative bacteria.
C. anaerobic gram negative bacteria.
D. black pigmented porphyrmonas.

Bacterias found in peri-implantitis are orphyromonas gingivalis,
Prevotella intermedia and Campylobacter rectus (all are anaerobic gram negative) and some spirochetes

2 Lowering mechanical stress to the crestal bone-implant interface can best be accomplished by the use of:
A. wide diameter implants (> 4.7 mm).
B. long implants (> 12 mm).
C. a cantilever prosthesis.
D. smooth cylinder implants.

It's a little bit complicated to explain but it's pure biomechanics
The wider the implant is, less stress you have and less risk of failure