2016 ppq Flashcards

1
Q

two organisms involved in angular cheilitis?

Condition that would be seen orally?

A

s.aureus
C.albican

denture induced stomatitis
hyperplastic candidiasis

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2
Q

sample to collect for angular cheilitis?

A

swab

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3
Q

What would you use if could not/ no sample for angular cheilitis?

A

Miconazole

antibacterial and antifungal activity
against candida and staphylocci

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4
Q

Two example of immunocompromised and gastric bleeding disease. Aetiology?

A

immunocompromised:
- HIV
- Diabetes
- Leukaemia
immunosuppression=
= allows opportunistic pathogen to cause the disease
= reduced immune function .:. reduced ability to fight off infection

bleeding:
-Crohn's 
-Ulcerative Colitis
-peptic ulcer
= loss of immune cells in blood
=lack of absorption .:>malnutrition
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5
Q

Instructions to give pt on denture hygiene?

A

remove at night

soak in alkaline peroxide for 20 minutes then in water

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6
Q

Types of fluoride delivery for a 13 year old

A

fluoride varnish 22600
fluoride toothpaste 1450
fluoride mouthwash 225
fluoride tablets 1mg

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7
Q

For pt with orthodontic decal what else could you give?

A

diet advice and OHI

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8
Q

8 risks of ortho tx with fixed appliance?

A
root resorption
relapse
failure
enamel wear
recession
soft tissue trauma 
loss of vitality
allergy
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9
Q

4 ways to gain haemostasis

A
damp gauze and pressure
LA with vasoconstrictor
surgicel and sutures
diathermy
artery forceps
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10
Q

term for delayed onset of bleeding

A

reactionary up to 48 hours
up to a week is called secondary

  • secondary generally caused by infection causing breakdown of clot
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11
Q

2 congenital and 2 acquired bleeding disorders

A

Haemophilia and von Willebrands disease

drug therapy and alcohol liver disease

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12
Q

When do you have to monitor INR for before procedure?

A

ideally no more than 24 hours before the procedure.

if a stable INR, checking the INR no more than 72 hours before is acceptable.

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13
Q

How many occlusal units is 2 occluding premolars and one pair of occluding molars?

A

3

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14
Q

WHat skeletal classes are contraindicated with SDA?

why?

A
severe class 2
class 3 

less likely for there to be occluding pairs in a severe malocclusion

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15
Q

Why is periodontal disease a contraindication for SDA? 3 reasons

A

poor prognosis of teeth
drifting of teeth under occlusal load
loss of alveolar bone leading to compromised denture bearing area in long term

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16
Q

What metal is used for casting an adhesive bridge?

why?

A

CoCr

strong, hard, high young’s modulus

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17
Q

What is the 5 year survival rate for resin retained bridge?

A

~80%

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18
Q

11 ed fracture, >1 mm >24 hours. immediate mgmt?

A
  • –account for missing tooth fragments
  • –radiograph to check for any root displacement or fracture
  • –LA, dam
  • –reposition tooth if any displacement
  • –removal coronal pulp until into healthy pulp
  • –haemostasis cotton wool pledget soaked in saline
  • –if no haemostasis remove pulp tissue until haemostasis can be achieved
  • –direct pulp cap placed and sealed using adhesive restoration
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19
Q

why is subalveolar fracture poor prognosis?

A
  • lack of tooth tissue to support a restoration
  • difficulty of isolation and moisture control for any treatment
  • difficulty placing subgingival crown margins
  • cannot clamp tooth to carry out endo
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20
Q

denture induced stomatitis. features of palatal tissues?

A

erythematous

papillary hyperplasia

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21
Q

first line of tx denture induced stomatitis?

second line?

A

denture hygiene advice
tissue conditioner
CHX MW

2) systemic antifungals- fluconazole, itraconazole
topical- miconazole, nystatin

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22
Q

lab instructions for special tray manufacture?

A

please pour primary impressions in 50/50 stone/plaster and construct special trays in light cure acrylic, non perforated, upper with 2mm wax spacer and lower with 1mm space with intraoral handles and finger rests in premolar region, please ensure muscle attachments are relieved

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23
Q

sensitivity to sweet. pulpal diagnosis?

A

reversible pulpitis

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24
Q

Metal used in wing of resin retained bridge?

A

CoCr

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25
Q

Four faults that can occur to cause RRB to debond?

A

poor moisture control during cementation
unfavourable occlusion
poor enamel quality on abutment
inadequate coverage of abutment

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26
Q

what design could you do for RRB to minimise risk of debond?

A

pick tooth with large bonding area for abutment

cantilever design for anterior sextant

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27
Q

3 questions to ask mum of child who has swallowed toothpaset

A

How old is the child?
What concentration of fluoride is in the toothpaste? (strength of toothpaste)
How much toothpaste they swallowed?

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28
Q

potentially toxic dose

mgmt

A

5mg
Go to a hospital
Give calcium orally

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29
Q

fluoride supplementation for 1 yo 4 yo 7yo

A

1 year old (0.25mg)- Fluoride drops (0.25mg/0.5ml)

4 years old (0.5mg)- Fluoride chewable tablet (0.5mg)

7 years old (1.00mg)- Fluoride mouthwash 225 ppm

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30
Q

histology q-smoker’s keratosis- what histological presentation could indicate malignancy?

A

evidence of dysplasia
hyperchromatism
atypia

31
Q

histology q - smoker’s keratosis - what clinical presentation would indicate malignancy?

A

raised, rolled, indurated margins
ulcerated with yellow/necrotic base

bleeding
non homogenous surface
friable areas
exophytic growth
>3 weeks w/o obvious cause
32
Q

what is mandibular displacement on closing?

A

discrepancy between arch widths meaning teeth meet cusp to cusp so mandible must deviate to one side ro achieve ICP

33
Q

why should you correct a mandibular displacement?

A

Can lead to TMJ symptoms and cause attritive wear

34
Q

What would you use to correct a bilateral posterior crossbite?

A

mid palatal screw on a URA to expand maxilla

35
Q

design ura to correct bilateral posterior crossbite

A

A- mid palatal screw
R- Adams on Ds (0.6HSSW) and 6s (0.7HSSW)
A- reciprocal
B- self cure PMMA with FPBP and mid palatal split

36
Q

6 signs or symptoms tmd

A
hypertrophic MoMs 
tender MoMs
pain from TMJ
linear alba
scalloped tongue
occlusal surface wear
clicking popping on opening
37
Q

two muscles you would palpate for TMD

A

temporalis and masseter

38
Q

conservative advice to give for TMD

A
  • stop parafunctional habits- nail biting
  • limit mouth opening - no maximum opening
  • soft diet
  • do not incise food
  • hot compresses
  • supported yawning
  • no chewing gum
39
Q

pericoronitis- immediate treatment you would give the patient?

A

incise and drain any abscess
irrigate under operculum with saline/ CHX
advise analgesics
consider antibiotics if systemic involvement

40
Q

6 pieces of information to take from radiograph of 3rd molars

A
- relationship of IAC to root
any dental caries present
bone levels
impaction status of the 8s
pathology of supporting structures
crown and root morphology of teeth
  • darkening of canal
  • diversion root
  • disruption id canal
  • interuption tram lines
41
Q

three GI conditions that could cause microcytic anaemia?

A
Crohn's 
peptic ulcer
ulcerative colitis
colon polyposis
h. pylori gastritis
42
Q

three oral conditions microcytic anaemia could be associated with?

A
  • -atrophic glossitis
  • -oral lichen planus
  • -RAU recurrent apthous ulcers
    • burning sensation of mucosa
  • -xerostomia
43
Q

child presents with ulcer on lip
what else would you see intraorally?
what would be your diagnosis?

A

erythematous gingiva
ulcerated mucosa
intact vesicles
white tongue due to buildup of dead squamous cells

primary herpetic stomatitis

44
Q

what 8 questions could you ask parent of 13 year old child presenting with ulcer on lip

A
  • are they recurrent
  • how long have they been present
  • anything that triggers them
  • where are they in mouth
  • any pain from them
  • how long is latency period between episode
  • anything make them better or worse
  • any lesions elsewhere on body
45
Q

two local and two general factors for implant placement?

A

local -

    • bone height
    • smoking
    • OH
  • -perio

general-

    • diabetes
    • psychiatric conditions
    • pt motivation
  • osteporosis
46
Q

what are 4 side effects of opioid use?

A
constipation
sedation
xerostomia
excessive sweating
addiction
47
Q

what group does methadone belong to?

A

opioid

48
Q

what is a complication of methadone containing sugar?

A

rampant dental caries

49
Q

what is the risk of a sugar free preparation of methadone?

A

more likely to inject it

50
Q

three types of sterilisers?

A

N
B
S

51
Q

clinical and lab investigations for pt with generalised bone loss

A

thorough history - including family history
periodontal pocket chart - 6ppc
microbiological analysis of sample- rinse - to check for Aa
oral examination

52
Q

fluoride supplementation for 1 yo 4 yo 7yo

A

1 year old (0.25mg)- Fluoride drops (0.25mg/0.5ml)

4 years old (0.5mg)- Fluoride chewable tablet (0.5mg)

7 years old (1.00mg)- Fluoride mouthwash 225 ppm

53
Q

5 causes of transient sensitivity post deep restoration in composite + their solutions

A

Deep cavity,
Insufficient coolant on prep,
Uncured resins entering the pulp and causing irritation,
Pulp exposure,
Fluid
from tubules occupying space under restoration

Lining material (RMGI/vitrebond),
Pulp cap, Indirect restoration/ cure in increments, Liner, Stepwise excavation
54
Q

fluoride supplementation for 1 yo 4 yo 7yo

A

1 year old (0.25mg)- Fluoride drops (0.25mg/0.5ml)

4 years old (0.5mg)- Fluoride chewable tablet (0.5mg)

7 years old (1.00mg)- Fluoride mouthwash 225 ppm

55
Q

Periapical abscess q - pt has haemophilia. tx for abscess

A

root canal therapy if tolerable as pt has bleeding disorder- pulpectomy

56
Q

list 8 stages to pulpectomy

A
  1. topical and la
  2. rubber dam and clamp
  3. access- caries removal and removal roof of pulp chamber
  4. coronal pulp extiration, root canal preparation
  5. obturate with vitapex
  6. GIC core
  7. Stainless steel crown
  8. review
57
Q

Name 2 local haemostatic agents in paeds

A

ferric sulphate

surgicel

58
Q

Name 2 local haemostatic agents in paeds

A

ferric sulphate

surgicel

59
Q

5 possible treatment options for impacted molars

A
leave and monitor
xla  upper e
discing of upper e
ortho separator
ortho appliance attached to 6
60
Q

features of permanent dentition allow for replacement of primary without crowding

A

growth of maxilla
proclination of permanent teeth
extension of dental arch

61
Q

what is leeway space

A

mediodistal width of canines and primary molars is larger than mesiodistal with of canines and premolars of permanent

62
Q

extrusion splint

A

37% etch

2 weeks

63
Q

trauma review 4 tests

A
ept
ethyl chloride
sinus
colour
mobility
ttp
64
Q

trauma radiograph - features expetced on extrusion 11

tx

A

widened pdl
loss of LD
EIRR

RCT with CaOH canal dressing,
periradicular surgery

65
Q

clinical governence 6 factors

A
Clinical audit
Clinical effectiveness
Openness
Risk management
Research and Development
Education and training
66
Q

dental complications of a dental retainer

A

fixed-

    • can debond from teeth
    • wire can fracture
    • gingivitis
    • diffciulty to keep good OH

pressure vacuum formed-

    • can be lost
    • can alter occlusion
    • can be chipped/ fractured
    • low compliance as removable
67
Q

suspected trigeminal nerualgia what tests would you carry out

A
    • radiographs
    • IDB perfomed- -to rule out TMD or muscle pain
  • -MRI
    • FBC
68
Q

drug therapy for TN

A

carbamazepine

69
Q

tests to carry out every 3 months for TN

A

FBC
LFT
check for imporvement with pain scale
radiographs

70
Q

tests to carry out every 3 months for TN

A

FBC
LFT
check for imporvement with pain scale
radiographs

71
Q

when would you decide to go for surgical management of TN

what surgical mgmt

A

no improvement of condition with carbamazepine and has been tried for substantial period

medication causing side effects

balloon compression
cryotherapy
long acting LA bupivicaine

72
Q

3 local and 3 general causes pigmentation

A

local:
amalgam tattoo
melanoma
peutz jeghers

general:
smoking
racial
addison's
karposi
medication
73
Q

2 types of hemangioma and histological difference

A

capillary
cavernou

capillary- non capsulated aggregates of closely packed, thin walled capillaries, endothelial lining, separated by connective tissue

cavernous- encapsulated nodular mass composed of dilatedm cavernous vascular spaces. endothelial lining, separated by connective tissue. smooth muscle cells surround vascular spaces

74
Q

things to note of facial swelling

A

size
colour
texture
heat