BDS3 Flashcards
1
Q
what is the most important factor for long term success of crown?
A
coronal seal
2
Q
why is porcelain better than ceromer crown if retention prep not good?
A
better bond
3
Q
what is the best articulator for registering occlusion?
A
fully adjustable
4
Q
biological width components
A
CT
JE
2mm
5
Q
dry socket incidence
A
2-3%
20-30% L8s
6
Q
incidence of osteonecrosis with bisphosphonates
A
1/1000
7
Q
what walled bone regeneration is best?
A
3 walled
8
Q
affect crown forces?
A
direction
9
Q
pan angulation
A
vertical beam up 8 degrees (-8)
10
Q
christensen phenomenon
A
occlusal rims
protrusion, gap appears on posterior teeth in natural dentition
can lead to instability in complete dentures if not compensated for
11
Q
CP incidence
A
1/600
12
Q
tx for OA
A
NSAIDs
13
Q
irregular pulse
A
AF
14
Q
multi-iscahemic
A
loss of sensation L face and R upper limb
15
Q
where does the lingual nerve run?
A
between the MP and the mandible
16
Q
what to use for a sclerotic canal?
A
EDTA chelating 17%
17
Q
cleaning blood spillage
A
NaOCl/dischlorisocyanurate 10 000ppm
18
Q
glycolysis
A
glucose to pyruvate, NADH and ATP
19
Q
what produces the most lactate?
A
sucrose
20
Q
fct of glycocalyx
A
adhesion and protection
21
Q
niche
A
behaviour of organism in ecological env
22
Q
what does LA bind to?
A
voltage gated Na+ channels
23
Q
why reduce drug dosage in elderly?
A
reduced excretory capacity in kidney
24
Q
which joints affected in RA?
A
MCP and PIP joints
25
what is kVP?
peak kilovoltage
| max V applied across xray tube
26
what is the greatest danger of osteoporosis?
vertebral fracture
27
canine crown prep buccal reduction
2 plane
28
RCP
condyles in their most posterior position and teeth contact
29
width of Al filtration
<70kV 1.5
| >70kV 2.5
30
line of reference for anterior oblique occlusals
upper - ala-tragus
| lower - corner of mouth tragus
31
Bennett angle
angle formed by sagittal plane and path of mandibular condyle during lateral movement when viewed in horizontal plane
32
types of CP
spastic
ataxic
combined
dyskinetic
33
how to make veneer more adhesive
lab with 10% acid
34
what does deamination of a.a. produce and when does it occur?
ketone acids and ammonia
| broken down in excess of protein intake
35
what is it called when after cognitive theory they adhere to OH?
implementation intention
36
primary aim of audit
improve healthcare - ensure standards are being met
37
blood test for anaemia
FBC
38
which nodes would an oesophageal infection spread to?
deep cervical
39
what organism is ABHR not effective against?
c diff
40
most useful voltage with a 60kV machine?
58
41
venous canula infection?
staph epidermidis
42
most important thing to tell radiographer
clinical findings
43
oral complication of palsy
bruxism
44
oral manifestation of leukaemia
gingival bleeding
45
how to reduce trauma to pulp during Rx procedure
coolant
46
eye effect of DM
maculopathy
47
retruded axis
dynamic relationship during which the mandible opens and closes on a reproducible hinge axis
48
chroma
intensity of colour
49
high sugar supply
lactate is preferentially formed under anaerobic conditions
50
what can the zygomatic process of maxilla on pan be confused with?
posterior border of MS
51
when is synthesis of EPS in plaque greatest?
when sucrose present
52
premolar shape access cavity
oblong
53
bilateral ankle swelling that gets worse as day goes on
congestive heart failure
54
liver cirrhosis
disorganised liver repair
55
fast irregular pulse and acutely breathless
AF
56
where is emergency airway located?
between thyroid and cricoid cartilages
57
which muscles help to retain dentures in correct position?
buccinator and orbicularis oris
58
what is the best material for restoring occlusal surfaces?
gold
59
horizontal magnification of anterior teeth in pan
pt too far back in machine - closer to source
60
high F food and drinks
spinach
tea
tomatoes
cucumbers
61
rationale for ABs in perio
PDD predominantly caused by bacteria
62
problems limiting AB usefulness in perio
resistance
reaching targeted bacteria
penetrating biofilm
allergies
63
indications for systemic ABs for perio disease
```
immunocompromised
aggressive infection
systemic symptoms
NG
adjunctive therapy required
```
64
what does the quality of photons depend on?
distance
65
test for c albicans
germ tube formation test
| the chromogenic agar colony colour is blue green
66
biofilm formation
adhesion
colonisation
accumulation to form complex community
dispersal
67
legislation governing waste
Controlled waste regulations 2012
Hazardous waste directive 2005
Env protection act 1990
Waste (Scotland) regulations 2011
68
cognitive tests for dementia
MMSE
Blessed dementia scale
GPCOG
miniCOG
69
MDT
team of individuals from a wide variety of disciplines/specialties who work alongside each other in order to provide the best and holistic care for the pt
70
factors of deprivation
```
unemployment
crime
housing
income
education
health
geographic access to services
```
71
springiness
can undergo large deflections without permanent deformation
72
rigidity
stress/strain ratio
| amount of stress required to cause a change in shape
73
waste transfer note
for non-hazardous waste
| keep for 2yrs
74
formula for force in wire
proportional to deflection x radius4/length3
75
radiology coin test
reveal problems with film fogging
flash expose it
6 coins
uncover each coin at 30s intervals
if no outlines - no fogging has occurred and there is a working time of at least 2mins
if can see coin outline then safelight bad
76
shimstock
8um mosquito forceps
77
articulating paper
20um millers forceps
78
when does ossification of skull begin?
wk 8-9
79
smoking legislation
Prohibition of smoking in public places 2006
| tobacco and primary medical services act 2010 - no fags from vending machines
80
denture bearing area mandible
buccal shelf
81
lying back in chair feeling lightheaded
decreased baroreceptors
82
when is lactate formed?
under anaerobic conditions
83
occlusal trauma
tooth mobility which is progressively increasing/tooth mobility with symptoms and radiographic evidence of increased PDL width
84
factors influencing substantivity of CHX
```
absorption to oral surfaces
maintenance of antimicrobial activity
slow neutralisation
other drugs
food and drink
SLS
```
85
lewy bodies
spherical protein deposits in the neurons, stops normal propagation
86
toxic F dose
1mg/kg
87
potentially lethal dose
5mg/kg
88
certainly lethal dose
32-64mg/kg
89
15mg/kg+
hospital
IV calcium gluconate
cardiac monitoring
90
consequences of adverse occlusal forces
fractured cusp
attrition
dislodged Rxs
increased mobility
91
how to reinforce anchorage with a FA?
TPA
92
PVS advantages
low permanent deformation
more accurate
higher tear strength
93
crazing
stresses from differences in thermal expansion of base and acrylic teeth
94
types of porosity acrylic
gaseous
crazing
contraction
granulation
95
steam penetration test strip colour change
from yellow to blue
96
null hypothesis
when making a definitive statement impossible to prove
| instead a false statement can be made (null) which is then disproven
97
reproducibility of elastomers
20u
98
incisal guidance angle
angle condyle makes to horizontal plane
| view from lateral aspect when teeth protruded edge to edge
99
calculating units
% x vol (ml)/1000
100
perio and neutrophils
impaired neutrophil chemotaxis
101
diabetes insipidus
lack of ADH
| lots of dilute urine
102
levans
group of fructans which are a group of carbohydrate polymers of fructose forming a non-structural long chain carbohydrate
103
dextran
complex branched glucan composed of chains a1,3 and 1,6 glycosidic linkages
104
CoCr properties
```
high hardness
high YM
low density
low ductility
difficult to adjust as work hardens rapidly
high shrinkage
```
105
why should you avoid sedation in diabetes?
masks symptoms of hypoglycaemia
106
demographic factors
characteristics of a pop, expressed statistically
107
hypertension value
over 140/90
108
IV Bisphosphonates
ibandronic acid
zolendronic acid
pamidronate
109
disinfection
destruction of pathogenic or other organisms by physical/chemical means
110
how to prevent RR endo
good seal of GP canal orifice with GI
111
posteriors on one side horizontally magnified in pan
pt moved away from machine at that point
112
where is inferior border of MS?
horizontal above molars
113
stroke
damage to CNS
114
non-stroke
damage to peripheral
115
which antibiotic interferes least with warfarin?
amoxicillin
116
meds that cause xerostomia
```
tricyclics
antihistamines
anticholinergics
diuretics
antipsychotics
SSRIs
BZDs
```
117
stroke
acute focal neurological deficit resulting from cerebrovascular disease and lasting >24hrs or causing earlier death
infarction/haemorrhage - hypoxia of brain tissue
118
dental aspects of stroke
```
impaired mobility/dexterity
communication difficulties
loss of protective reflexes
cognitive impairment
facial paralysis
```
119
stroke RFs
alcohol
hypertension
smoking
IHD
120
stroke prevention
reduce risk factors
| thrombotic prophylaxis - aspirin
121
dental aspects of CF
```
delayed dental development
enamel opacities
increased calculus
less caries and perio due to thick saliva with high ammonia levels
no GA
increased bleeding - liver impairment
tetracycline staining
diet
```
122
cardinal signs of parkinsons
bradykinesia
postural instability
muscle rigidity
resting tremor
123
dental aspects of parkinsons
```
dry mouth - anticholinergics
access
mask like face - communication
impaired dexterity
dysphagia
association with dementia
```
124
social view of disability
society must respond to medical problems
society is the issue
needs to adapt
125
medical view of disability
people with disability are issue, need tx/care
| should adapt to env and society
126
Disability Discrimination Act 2004
protects disabled people from discrimination and prejudice
127
biofilm definition
microbial populations and their products enclosed in an EPS matrix (polymers) of microbial origin, adherent to each other/surfaces
128
azoles resistance
overprescribed
can't penetrate biofilm
efflux pumps for extrusion of antimicrobial
lysozyme/hydrolytic enzymes in vesicles that destroy antifungals
129
p gingivalis adherence
fimbriae
130
s mutans adherence
insoluble glucans
131
candida adherence
ECM
132
3 things for sucessful colonisation
adherence
substrate for energy
correct env - pH, O2, temp
133
2 characteristics of biofilm ECM that causes resistance to antimicrobials
glucans
| glycocalyx
