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bds3 past papers & quizzes > 2011 Mock MCQ > Flashcards

2011 Mock MCQ Flashcards

1
Q

on undertaking a CPITN exam with a CPITN probe, the coloured band remains cmpletely visible in all pockets. However, there is bleeding after probing but there is no identifiable calculus or plaque retentive factors - what is the CPITN for this sextant?

A. 0

B. 1

C. 2

D. 3

E. 4

A

C

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2
Q

one large glass (250ml) of white wine (12%) contains how many UK units of alcohol?

a. 1.5
b. 2
c. 2.5
d. 3
e. 3.5

A

e

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3
Q

which should be used to correct a buccally positioned canine on an orthodontic lab prescription?a. palatal finger spring HSSW 0.5mm

b. buccal canine retractor HSSW 0.5mm in 0.5mm ID tubing
c. buccal canine retractor HSSW 0.5mm in 0.7mm ID tubing
d. buccal canine retractor HSSW 0.7mm in 0.7mm ID tubing
e. labial bow HSSW 0.7mm tubing

A

b

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4
Q

when positioning a pt for an upper anterior oblique occlusal radiograph, which external line of plane is used to assess the occlusal plane?

a. frankfort plane
b. ala-tragus line
c. corner of mouth-tragus line
d. interpupillary line
e. corner of mouth-angle of mandible

A

b

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5
Q

dose reduction in intra-oral radiography is best achieved by which combination?

a. circular collimation, E speed film
b. circular collimation, F speed film
c. rectangular collimation, D speed film
d. rectangular collimation, E speed film
e. rectangular collimation, F speed film

A

e

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6
Q

prescribing medication for children requires alteration from an adult prescription. The most important change to make is:

a. the formulation of the drug
b. the duration of drug tx
c. dose of drug
d. route of metabolism of the drug
e. flavour of the drug

A

c

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7
Q

diabetes is a common disorder in the elderly, complications of this condition may lead to difficulty in independent living. The complication most likely t produce this is

a. glove and stocking sensory loss
b. atherosclerosis
c. renal failure
d. poor wound healing
e. maculopathy

A

e

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8
Q

pt with significant oral ulcertion may have an underlying anaemia. the medical problem most likely to produce this problem in a 45 year old male is

a. peptic ulcer disease
b. asthma
c. renal transplantation
d. coeliac disease
e. colon cancer

A

a

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9
Q

pt with excellent plaque control, application of an intermittent non-axial occlusal force to a tooth may give rise to

a. gingivitis but no loss of attachment
b. loss of attachment but no gingival inflammation
c. both gingivitis and loss of attachment
d. widening of the PDL and increased mobility
e. narrowing of the PDL an decreased mobility

A

d

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10
Q

the retruded axis (centric relation):

a. is dependent upon the relationship of the teeth
b. occurs with the mandible in its most protruded position
c. is a dynamic relationship during which the mandible opens and closes on a reproducible hinge axis
d. is a non-border movemet
e. is a position that can always be achieved unaided by the pt

A

c

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11
Q

with relation to shade prescription for an indirect tooth coloured restoration the term ‘chroma’ refers to which element of the restoration’s colour?

a. lightness
b. intensity of the colour
c. actual colour
d. tone
e. luminance

A

b

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12
Q

you performed an extraction 3 hours earlier on a fit and healthy pt. The pt has returned to the surgery, complaining of bleeding from the extraction site - what is preferred immediate managment?

a. lie the pt flat
b. place the socket with Alvogly
c. loosen the pt tight clothing
d. get the pt to bite on a gauze pack
e. take the pt’s blood pressure

A

d

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13
Q

under conditions of high sugar supply, which of the following are preferably formed under anaerobic conditions?

a. acetate
b. ethanol
c. lactate
d. acetaldehyde
e. butyrate

A

b

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14
Q

facultative anaerobes

a. grow in the presence of oxygen only

b grow in the presence of carbon dioxide only

c. grow in the presence or absence of oxygen
d. grow in the presence or absence of carbon dioxide
e. grow under any atmospheric conditions

A

c

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15
Q

following restoration of a single tooth under LA, which of the following is the most appropriate to determine suitable occlusal contacts?

a. assess using a facebow registration
b. ask the pt to bite and determine if the occlusion feels fine
c. direct vision to assess tooth-tooth contact
d. listen to hear if there is audible tooth contact
e. use thin articulating paper

A

b

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16
Q

the zygomatic process of the maxilla is partly seen as a vertical radiopaque line on a panoramic radiograph. with which bony margin of the maxillary sinus can it be confused?

a. inferior
b. superior
c. anterior
d. posterior
e. medial

A

d

17
Q

synthesis of extracellular polysaccharide in plaque formation is greatest when which one of the following sugars is present within the diet?

a. glucose
b. mannose
c. fructose
d. sucrose
e. xylitol

A

d

18
Q

which of the following best describes the endodontic file movement when performing ‘balanced force’ instrumentation as described by Roane?

a. 60o turn clockwise followed by a 60o turn anticlockwise, repeated
b. 90o turn clockwise followed by a 180o turn anticlockwise, repeated
c. 120o turn clockwise followed by a 180o turn anticlockwise, repeated
d. 60o turn clockwise followed by a 120o turn anticlockwise, repeated
e. 90o turn clockwise followed by a 90o turn anticlockwise, repeated

A

d

19
Q

in RCT, what is the recommended shape for the access cavity for maxillary and mandibular premolars?

a. triangular
b. ovoid
c. round
d. oblong
e. trapezoid

A

b

20
Q

bilateral ankle swelling that worsens as the day progresses would suggest that the pt has

a. atrial fibrilation
b. deep vein thrombosis
c. left heart failure
d. congestive heart failure
e. hyperproteinaemia

A

d

21
Q

liver cirrhosis is best characterised by

a. hepatitis c infection
b. liver cell destruction
c. disorganised liver repair
d. enhanced drug metabolism
e. enhanced gall stone formation

A

b

22
Q

a fast irregular pulse in a pt who is suddenly acutely breathless would suggest

a. atrial fibrilation
b. deep vein thrombosis
c. left heart failure
d. congestive heart failure
e. hyperproteinaemia

A

a

23
Q

persistent lip swelling and recurrent oral ulceration could be a feature of

a. peptic ulcer disease
b. ulcerative colitis
d. coeliac disease
d. crohn’s disease
e. diverticulitis

A

d

24
Q

what strength of once daily fluoride mouthwash would you recommend for a 9 year old

a. 100ppm
b. 225ppm
c. 250ppm
d. 500ppm
e. 650ppm

A

b

25
Q

what would be the most appropriate post-surgical advice to give a pt who has just had a tooth extraction?

a. start rinsing as soon as possible with warm salty water
b. smoking has no significant effect on healing
c. avoid eating until the effect of the anaesthetic has worn off
d. pain killers will not be required
e. heavy manual work can be performed on the day

A

b ??

i thought c

26
Q

which of the following pairs of muscles is particularly important in retaining dentures in their correct position?

a. buccinator and masseter
b. buccinator and mylohyoid
c. buccinator and orbicularis oris
d. digastric and genioglossus
e. hyoglossus and mylohyoid

A

c

27
Q

when planning the construction of a bridge, the purpose of a face-bow is

a. to record the relationship of the upper arch to the lower arch
b. to record the relationship of the upper arch to the mandibular condyles
c. to record the relationship of the lower arch to the mandibular condyles
d. to enable lateral and protrusive movements to be visualised
e. to ensure that the cusp inclines on the restoration are correct

A

b

28
Q

which of the following materials has the best mechanical properties for the restoration of occlusal surfaces

a. amalgam
b. composite
c. glass ionomer
d. porcelain
e. gold

A

b

29
Q

in dental panoramic radiography horizontal magnification of all the anterior teeth will be caused by which pt position error:

a. the pt is too far forward in the machine (closer to image receptor)
b. pt chin is tilted up
c. pt chin in tilted down
d. the pt is rotated
e. the pt is too far back in the machine (closer to x-ray source)

A

e

30
Q

with regard to intra-oral x-ray film and film packet - which is true

a. the white side of the film packet always faces away from the x-ray tube head
b. film has an embossed dot on it which faces towards the x-ray source
c. lead foil present in the film packet to prevent x-rays exposing the film
d. film has emulsion on one side only
e. film packet contains black paper to protect the film from scattered x-rays

A

b

bds3 past papers & quizzes (14 decks)

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