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brain in dds

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Hey Friends,

i'm starting this new thread only limited to Released Qs released by NDEB of Canada. They 660 pages looooooooooooooong!
So, another platform for all EE students to dance on and get each other's help in getting the right answer! :clap:

Good Luck!
 
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for the question regarding sprue reservoir read Mccrck page 328-329 it says the reservoir is for extra metal hence reducing porosity due to shrinkage.so the answer shud be D i guess
 
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The use of a reservoir on the sprue of a wax pattern decreases:

A. volumetric changes in the casting
B. casting porosity from inclusion of gases
C. casting porosity from inclusion of foreign bodies
D. casting porosity during solidification.


in contemporary fixed prosthodontics, page 682 one of the requirements is the metal within the sprue must remail molten longer than the alloy that has filled the mold. this provides a reservoir to compensate for shrinkage during solidification...

thus, i think the naswer is A
 
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leda said:
The use of a reservoir on the sprue of a wax pattern decreases:

A. volumetric changes in the casting
B. casting porosity from inclusion of gases
C. casting porosity from inclusion of foreign bodies
D. casting porosity during solidification.


in contemporary fixed prosthodontics, page 682 one of the requirements is the metal within the sprue must remail molten longer than the alloy that has filled the mold. this provides a reservoir to compensate for shrinkage during solidification...

thus, i think the naswer is A
Click to expand...

👍 A is the right answer
 
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i still think it is D becoz the manner in which the casting solidifies it produces porosity if there is not enough metal in the reservoir.
 
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i have another reference for this review of fixed partial dentures by Lovely.M pg285 search it on google books if u want
 
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Logically it is both A and D. I wouldn't bother with this question, it doesn't have a clear answer and because of that I don't think we can see it in an exam.
 
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dent rdh said:
i still think it is D becoz the manner in which the casting solidifies it produces porosity if there is not enough metal in the reservoir.
Click to expand...

I think porosity is created by entrapement of gases of the molten metal and I don't see how can the metal reservoir can correct that.
 
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p.31

When a removable partial denture is
fabricated to occlude with natural teeth, the
occlusal form of the artificial teeth is
influenced by the

A. endodontic condition of the abutment
teeth.
B. occlusal form of the remaining teeth.
C. need to produce a fully balanced
occlusion.
D. None of the above. .

What do you think. Could you recommend any reference?
 
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Sarna said:
When a removable partial denture is
fabricated to occlude with natural teeth, the
occlusal form of the artificial teeth is
influenced by the

A. endodontic condition of the abutment
teeth.
B. occlusal form of the remaining teeth.
C. need to produce a fully balanced
occlusion.
D. None of the above. .

What do you think. Could you recommend any reference?
Click to expand...

I think is B, the occlusal form of the remaining teeth
 
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Please, keep posting the page number, it will be easier to review questions later.

Ex: P660/Q5

Thanks.
 
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I know it is difficult to imagine but casting porosity can be due 3 factors, entrapment of gases,inclusion of metal particles and solidification shrinkage, it is written in Mccrckn.
i think like Dr cc said this question has a very strong distractor so hopefully it won't be in the exam.
 
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Sarna said:
I had a quick look and i think this article relates to occlusion of both upper&lower dentures.

I was thinking B, I remember reading about it but cannot find it anywhere.Is there any info in Decks?
Click to expand...


IT is mentioned in decks..so I will go with B ..occ form of remaining teeth
 
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pg #302

Acquired Immune Deficiency Syndrome
(AIDS) may be characterized by
1. candidiasis.
2. rapid weight loss and night sweats.
3. extreme malaise, fever or chills.
4. a smooth and red tongue.
A. (1) (2) (3) :xf:
B. (1) and (3)
C. (2) and (4)
D. (4) only​
E. All of the above. 😕
 
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answer has to be "c" acc to the fee guide. u can not claim more thn 5 surfaces of a single tooth whethr it's continuous or separate wall restorations.

do correct me if i m wrong!

Neptune3 said:
pp 595

During a single appointment, a dentist restores a maxillary incisor with two separate Class IV composite resin restorations. Which of the following procedures should be submitted to the patient’s dental insurance provider?
A. Two three surface restorations.
B. Two four surface restorations.
C. One five surface restoration.
D. One six surface restoration.
E. One eight surface restoration.

What do you think?
d?
Click to expand...
 
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pg # 302

Acetaminophen in therapeutic doses
1. ******s platelet function.
2. has strong anti-inflammatory
properties.
3. produces CNS stimulation.
4. has antipyretic properties.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only :xf:​
E. All of the above.

wht do u think, folks?
 
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brain in dds said:
pg # 302

Acetaminophen in therapeutic doses
1. ******s platelet function.
2. has strong anti-inflammatory
properties.
3. produces CNS stimulation.
4. has antipyretic properties.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only :xf:​
E. All of the above.

wht do u think, folks?
Click to expand...

Agree
 
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brain in dds said:
pg #302

Acquired Immune Deficiency Syndrome
(AIDS) may be characterized by
1. candidiasis.
2. rapid weight loss and night sweats.
3. extreme malaise, fever or chills.
4. a smooth and red tongue.
A. (1) (2) (3) :xf:
B. (1) and (3)
C. (2) and (4)
D. (4) only​
E. All of the above. 😕
Click to expand...

1,2,3
I don't think a smooth red tongue has anything to do with AIDS
 
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brain in dds said:
pg # 302

Acetaminophen in therapeutic doses
1. ******s platelet function.
2. has strong anti-inflammatory
properties.
3. produces CNS stimulation.
4. has antipyretic properties.
A. (1) (2) (3)
B. (1) and (3)
C. (2) and (4)
D. (4) only :xf:​

E. All of the above.

wht do u think, folks?
Click to expand...
agree with D
 
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i mean since the answer should be "the occlusal form of the opposing tooth ",and there is not such an option, the D, "none of the above" is the right pick.

leda said:
there is no such an option in what Sarna wrote...also the remaining teeth include teeth in the same and opposing arch...so B looks ok to me..
Click to expand...
 
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leda said:
I think all of above ...chronic candidiasis may manifest erithematous lesions...
Click to expand...

You are well prepared Leda. I looked it up - in erythematous candidiasis there may be lesions resembling median rhomboid glossitis, however it is confusing whether you can call them a smooth red tongue in general, because it is a patch. But I guess you are right, all of the above.
 
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it is called mirror tongue, looks smooth and red.

Sarna said:
You are well prepared Leda. I looked it up - in erythematous candidiasis there may be lesions resembling median rhomboid glossitis, however it is confusing whether you can call them a smooth red tongue in general, because it is a patch. But I guess you are right, all of the above.
Click to expand...
 
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brain in dds said:
pg #302

Acquired Immune Deficiency Syndrome
(AIDS) may be characterized by
1. candidiasis.
2. rapid weight loss and night sweats.
3. extreme malaise, fever or chills.
4. a smooth and red tongue.
A. (1) (2) (3) :xf:
B. (1) and (3)
C. (2) and (4)
D. (4) only​
E. All of the above. 😕
Click to expand...


All of the above
 
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hi
anyone got invitation from U of Alberta to do pre entry exam ?

anyone know how many dentist already invited?, and will accept?

thanks
 
Last edited:
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pg#351

Antibiotic coverage should be provided when
performing subgingival curettage for patients
with
A. myocardial infarction.
B. dental implants.
C. valvular heart disease. :xf:​
D. coronary artery disease.

p.s. thnx fr the previous answers.... 🙂

 
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brain in dds said:
pg#351

Antibiotic coverage should be provided when
performing subgingival curettage for patients
with
A. myocardial infarction.
B. dental implants.
C. valvular heart disease. :xf:​
D. coronary artery disease.

p.s. thnx fr the previous answers.... 🙂
Click to expand...
Yep , C is right

Reviewing :
Prophylaxis for endocarditis recommended in patients receiving dental care
High-risk category
• Prosthetic cardiac valves, including both bioprosthetic and homograft
valves
• Previous bacterial endocarditis
• Complex cyanotic congenital heart disease (e.g., single ventricle states,
transposition of the great arteries, tetralogy of Fallot)
• Surgically constructed systemic pulmonary shunts or conduits
Moderate-risk category
• Most congenital cardiac malformations other than above and below (see
next question)
• Acquired valvular dysfunction (e.g., rheumatic heart disease)• Hypertrophic cardiomyopathy
• Mitral valve prolapse with valvular regurgitation and/or thickened leaflets
Dajani AS, et al: Prevention of bacterial endocarditis: Recommendations by the American Heart Association. JAMA 277:1794—1801, 1997.
 
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Neptune3 said:
Yep , C is right

Reviewing :
Prophylaxis for endocarditis recommended in patients receiving dental care
High-risk category
• Prosthetic cardiac valves, including both bioprosthetic and homograft
valves
• Previous bacterial endocarditis
• Complex cyanotic congenital heart disease (e.g., single ventricle states,
transposition of the great arteries, tetralogy of Fallot)
• Surgically constructed systemic pulmonary shunts or conduits
Moderate-risk category
• Most congenital cardiac malformations other than above and below (see
next question)
• Acquired valvular dysfunction (e.g., rheumatic heart disease)• Hypertrophic cardiomyopathy
• Mitral valve prolapse with valvular regurgitation and/or thickened leaflets
Dajani AS, et al: Prevention of bacterial endocarditis: Recommendations by the American Heart Association. JAMA 277:1794—1801, 1997.
Click to expand...

Hey neptune ,

Thanks for the info but why not myo infarction
pls explain
 
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Neptune3 said:
pp 595

During a single appointment, a dentist restores a maxillary incisor with two separate Class IV composite resin restorations. Which of the following procedures should be submitted to the patient’s dental insurance provider?
A. Two three surface restorations.
B. Two four surface restorations.
C. One five surface restoration.
D. One six surface restoration.
E. One eight surface restoration.

What do you think?
d?
Click to expand...

Neither is correct in my oppinion...Actually you are treating four surfaces of the teeth,mes, dis. incisal and lingual and you should bill only for those.However there is no such alternative so I think the right answer for this question would be A.
 
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leda said:
Neither is correct in my oppinion...Actually you are treating four surfaces of the teeth,mes, dis. incisal and lingual and you should bill only for those.However there is no such alternative so I think the right answer for this question would be A.
Click to expand...

I just noticed they are both class IV so we are treating, mesial, distal, lingual, incisal and facial...do there is 5 surfaces.. tha right answer is C , one cavity five surfaces...
 
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drpuri18 said:
Hey neptune ,

Thanks for the info but why not myo infarction
pls explain
Click to expand...

Hi Drpuri18

Remember why we use antibiotic prophylaxis for Dental Patients
"Prophylactic administration of antibiotics
is thus recommended for patients who run the
risk of endocarditis and on whom dental procedures
or oral manipulations likely to cause bacteremia are
performed" Oral Surgery
look at http://en.wikipedia.org/wiki/Endocarditis
what are the causes of myocardial infartion
http://en.wikipedia.org/wiki/Myocardial_infarction
From that we conclude that it is not necessary antibiotic prophylaxis for patients with myocardial infarction

cardiac conditions do not require endocarditis prophylaxis:
Negligible-risk category (no higher than the general population)
• Isolated secundum atrial septal defect
• Surgical repair of atrial septal defect, ventricular septal defect, or patent
ductus arteriosus (without residua beyond 6 months)
• Previous coronary artery bypass graft surgery
• Mitral valve prolapse without valvular regurgitation
• Physiologic, functional, or innocent heart murmurs
• Previous Kawasaki disease without valvular regurgitation
• Previous rheumatic fever without valvular regurgitation
• Cardiac pacemakers (intravascular and epicardial) and implanted
defibrillators
Dajani AS, et a!: Prevention of bacterial endocarditis: Recommendations by the American Heart
Association. JAMA 277:1794—1801, 1990.
 
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leda said:
I just noticed they are both class IV so we are treating, mesial, distal, lingual, incisal and facial...do there is 5 surfaces.. tha right answer is C , one cavity five surfaces...
Click to expand...
Thank you for answering

I agree
 
Last edited:
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Neptune3 said:
Hi Drpuri18

Remember why we use antibiotic prophylaxis for Dental Patients
"Prophylactic administration of antibiotics
is thus recommended for patients who run the
risk of endocarditis and on whom dental procedures
or oral manipulations likely to cause bacteremia are
performed" Oral Surgery
look at http://en.wikipedia.org/wiki/Endocarditis
what are the causes of myocardial infartion
http://en.wikipedia.org/wiki/Myocardial_infarction
From that we conclude that it is not necessary antibiotic prophylaxis for patients with myocardial infarction

cardiac conditions do not require endocarditis prophylaxis:
Negligible-risk category (no higher than the general population)
• Isolated secundum atrial septal defect
• Surgical repair of atrial septal defect, ventricular septal defect, or patent
ductus arteriosus (without residua beyond 6 months)
• Previous coronary artery bypass graft surgery
• Mitral valve prolapse without valvular regurgitation
• Physiologic, functional, or innocent heart murmurs
• Previous Kawasaki disease without valvular regurgitation
• Previous rheumatic fever without valvular regurgitation
• Cardiac pacemakers (intravascular and epicardial) and implanted
defibrillators
Dajani AS, et a!: Prevention of bacterial endocarditis: Recommendations by the American Heart
Association. JAMA 277:1794—1801, 1990.
Click to expand...

Thanks Neptune3
 
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p.657
In a young patient living in an area with
communal water fluoridation, the fluoride
concentration of an erupted tooth is greatest

A. at the dentino-enamel junction.
B. on the surface of the clinical crown.
C. at the layer of dentin nearest the pulp
chamber.
D. evenly throughout the enamel.
 
Last edited:
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Sarna said:
In a young patient living in an area with
communal water fluoridation, the fluoride
concentration of an erupted tooth is greatest

A. at the dentino-enamel junction.
B. on the surface of the clinical crown.
C. at the layer of dentin nearest the pulp
chamber.
D. evenly throughout the enamel.
Click to expand...

I think B, on the surface of the clinical crown ..It is there where you find the topical effects of the fluoride .
 
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Orthodontic treatment with fixed
appliances can initiate periodontal bone
loss. Orthodontic treatment with fixed
appliances can accelerate periodontal
bone loss.
A. both statements are true
B. the first statement is true while the
second is false
C. the first statement is false while the
second is true
D. both statements are false

52. T or F: Adults with moderate to advanced
periodontitis can be successfully treated
orthodontically.

53. What percentage of well-instructed
patients will have ineffective plaque
removal with conventional toothbrush
A. 10-20%
B. 20-30%
C. 30-40%
D. 80-90%

54. What is the most successful treatment for
gingival hyperplasia in ortho patients?
A. gingiv ectomy (mowing)
B. connective tissue graft
C. plaque control
D. Colgate® Total

55. Slow extrusion is considered 1mm every ___
weeks.
A. 1 week
B. 2 weeks
C. 4 weeks
D. 6 weeks
E. 10 weeks

56. What CANNOT be improved with
orthodontic uprighting of periodonally
involved teeth?
A. crown to root ratio
B. reduction of pseudo-pocket
C. favorable changes to alveolar bone
D. improvement of furcation involvement
E. a & d

57. Which of the following is FALSE in rapid
extrusion of teeth?
A. 1mm/week
B. leave attachment level
C. cutting gingival fibers is contraindicated
D. overall goal is to maintain clinical crown
length

58. Which of the following is NOT usually an
indication for primary dentition ortho
treatment?
A. posterior crossbite
B. anterior crossbite
C. moderate class I crowding
D. severe class I crowding
E. class II

59. What age is recommended for a child’s first
orthodontic check-up?
A. 5 yrs
B. 7 yrs
C. 9yrs
D. 12yrs

60. T or F: Early mixed dentition patients tend to
be more cooperative than adolescent
patients.

61. Which of the following is the most accurate
analysis of space in mixed dentition?
A. Johnston-Tanaka
B. Bolton
C. direct
D. Hixon-Oldfather

62. Average maxillary leeway space is___ (per
side).
A. 0.7 mm
B. 0.9 mm
C. 1.7 mm
D. 3.0 mm

63. Average mandibular leeway space is___.
A. 0.7 mm
B. 0.9 mm
C. 1.7 mm
D. 3.0 mm

64. T or F: In mixed dentition orthodontics there
is less root resorption than in permanent
ortho treatment.

65. T or F: There are no orthodontic
emergencies.
 
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leda said:
I think B, on the surface of the clinical crown ..It is there where you find the topical effects of the fluoride .
Click to expand...

Could you explain why? I thought that systemic fluoride would cause even concentration throughout the enamel layer...
 
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drpuri18 said:
Orthodontic treatment with fixed
appliances can initiate periodontal bone
loss. Orthodontic treatment with fixed
appliances can accelerate periodontal
bone loss.
A. both statements are true
B. the first statement is true while the
second is false
C. the first statement is false while the
second is true
D. both statements are false

Answer C

52. T or F: Adults with moderate to advanced
periodontitis can be successfully treated
orthodontically.

Answer : false

53. What percentage of well-instructed
patients will have ineffective plaque
removal with conventional toothbrush
A. 10-20%
B. 20-30%
C. 30-40%
D. 80-90%

in this question they expect us to guess what is the percentage of patients that do not do a good job with brushing at home...I am guessing A. 10-20 % provided that the majority are doing good homework....

54. What is the most successful treatment for
gingival hyperplasia in ortho patients?
A. gingiv ectomy (mowing)
B. connective tissue graft
C. plaque control
D. Colgate® Total

I think c. plaque control, cause hyperpalsia in this case is caused by plaque..

55. Slow extrusion is considered 1mm every ___
weeks.
A. 1 week
B. 2 weeks
C. 4 weeks
D. 6 weeks
E. 10 weeks

I think every 4 weeks
Click to expand...
 
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Sarna said:
Could you explain why? I thought that systemic fluoride would cause even concentration throughout the enamel layer...
Click to expand...

the young patient will get not only the effects of the systemic fluoride which will be reflected evenly throughout enamel thickness but also the topical effects of fluoride which accounts for greater concentration on the enamel surface...
 
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help me with ths one, plz!​

pg # 517​


Which of the following is/are characterized by
an obliteration of pulp chambers and root
canals?
1. Ageing.
2. Chronic trauma.
3. Dentinal dysplasia.
4. Taurodontism.
A. (1) (2) (3)
B. (1) and (3):xf:
C. (2) and (4)
D. (4) only​
E. All of the above. 😕


pg # 412

Which of the following modifications to the
standard procedure for mixing gypsum
products will increase the compressive
strength of the set material?
A. Adding a small amount of salt to the water before mixing.
B. Decreasing the water/powder ratio by a small amount. ---- ???
C. Using warmer water.​
D. Decreasing the mixing time.
 
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