Case Pres Flashcards

1
Q

Why PA rather than OPT

A

The choice of panoramic vs. intra-oral periapical radiographs may depend on a range of factors including preference and
availability. In general, full mouth periapical radiographs using a paralleling technique, give more accurate and detailed
assessment of periodontal bony defects. In contrast, a good quality panoramic radiograph is quicker, less uncomfortable,
and may provide useful assessment of bone levels and other pathologies. Panoramic radiographs might need to be
supplemented with periapical views especially in the anterior sextants due to the likelihood of image distortion in these
regions. With both techniques appropriate collimation must be considered in order to reduce the patient received radiation
dose to a minimum. Ideally this involves using some form of rectangular collimation for periapical radiographs and field
size collimation for DPTs, designed specifically to reduce the dosage to the orbits and parotid glands.

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2
Q

what radiographs for perio assessment

A

For uniform probing depths ≥4 and <6 mm and little or no recession, take horizontal
bitewing radiographs. If the anterior teeth are affected, take intra-oral periapical views using
the long cone paralleling technique

For irregular probing depths, take horizontal bitewing radiographs and supplement these
with intra-oral periapical radiographs taken using the long cone paralleling technique.

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3
Q

problems from too short endo?

A

bacteria in root canal .:. continuing infection

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4
Q

problems from too long endo?

A

inflammation in apical tissues

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5
Q

how to correct perforation

A

MTA

biocompaible but takes 24 hours to set, irretrievable and hard to use

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6
Q

options for space maintaining

A

pt preference- leave and monitor

implant

denture

conventional bridge

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7
Q

bpe use?

A

a simple and rapid screening tool that is used to indicate the level of examination needed
and to provide basic guidance on treatment need.

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8
Q

oral side effects corsodyl

A

staining
taste disturbances
anaphylaxis/ allergy
salivary gland enlargement

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9
Q

paper on alcohol

what does it show?

A

R. Grocock. Relevance of alcohol to dental practice. BDJ Dec 2017

  • general trend of reduction of binge drinking
  • but increase in alcohol related hospital admissions
  • scotland has highest alcohol related death rate
  • one unit 10ml or 8g pure alcohol
  • no safe level of alcohol consumption
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10
Q

paper of endodontic results?

what does it show?

A

sjogren et al. factors affecting long term results of endodontic treatment. Journal of endodontics. oct 1990.

re-endo = 60%
w/o periapical = 95%
with periapical = 90%

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11
Q

talk to me about her orthodontic needs?

A

mild crowding

moderate complete overbite

no problem to function or soft tissue damage.

pt happy with appearance

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12
Q

alcohol intervention?

A

FRAMES

feedback
responsibility
advice 
menu
empathy
self-efficacy

feedback- graphs to show individualised risk
responsibility placed on patient
advice given if indicated - only when asked
menu of options- AA, self help programmes, 12 step programmes
empathetic approach
self efficacy- emphasis placed on patients ability to make and mantain change

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13
Q

units per week for alcohol

which guidelines

A

chief medical officer

no more than 14 units per week and evenly spread out over 3 or more days
2 alcohol free days per week

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14
Q

difference between depression and anxiety

A

depression is low mood for extended period with symptoms like losing interest in things once enjoyed, loss of apetite, insomnia
whereas anxiety is feeling constantly uneasy or worried about multiple situations or a wide range of issues

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15
Q

risk category for caries

risk factors

A

high risk:

crowding of teeth
previous caries incidence high
mh: started sertraline- may cause low salivary flow
family history
poor oh
evidence of primary and secondary caries
poor diet
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16
Q

risk category for perio

risk factors

A

high

obesity
restorations or calculus below gingival margin
poor nutrition
poor oral hygiene
psychological stress- van dyke 2005: risk factors for periodontitis. thought to be due to increase of interleukin 6 in stressed individuals
occlusal trauma

diabetes
smoking
genetic factors

nine factors:
Patient age
Smoking history
Diagnosis of diabetes
History of periodontal surgery
Pocket depth
Furcation involvements
Restorations or calculus below the gingival margin
Radiographic bone height
Vertical bone lesions.
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17
Q

why prescribe high fluoride toothpaste?

A

attempt to arrest active caries

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18
Q

why onlay vs crown?

A

keep as much of remaining tooth tissue as possible
support remaining tooth tissue rather than remove during prep
cuspal coverage =onlay

in general practice crown likely as onlay not covered by nhs

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19
Q

why would you prescribe antibiotics?

A

spreading infection
evidence of cellulitis - infection deeper layers of skin
systemic involvement
unable to drain abscess

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20
Q

why amoxicillin/ metro before clindamycin?

A

1st line antibiotics used if necessary

empirical use of 2nd line offers no advantage
use contributes to development of antimicrobial resistance

but if no response to 1st line, refer before prescribing clindamycin
restricted to severe infections only

severe side effects- diarrhoea/ coliitis

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21
Q

how does amoxicillin work?

side effects

A
amino- penicillin
beta-lactam AB
bind to pencillin-binding proteins
inhibit transpeptidation
activation of autolytic enzymes in bacterial cell wall
.:. lysis of cell wall
bactericidal killing

like all penicillins- hypersensitivity reactions,- inc rashes, anaphylaxis
diarrhoea

500mg tid 5 days

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22
Q

how does metronidazole work?

side effects

A

inhibits nucleic acid synthesis by disrupting DNA of microbial cells.
metro needs to be partially reduced .:.
only effective against anaeobes

suitable for abscesses in pts not able to take penicillins
or adjunct to amoxicillin in spreading infection

need to avoid alcohol- disulfiram like reaction
anticoagulant effect of warfarin increased.

400mg tid 5 days

23
Q

how does clindamycin work?

side effects

A

inhibits ribosomal translation .:. inhibits protein synthesis
.:. bacteriostatic

but if no response to 1st line, refer before prescribing clindamycin
restricted to severe infections only

150mg qid, 5 days

diarrhoea
ab associated colitis

24
Q

alcohol effect on body?

A

–heart disease- cardiomyopathies, arrythmia, stroke, high blood pressure

–liver- steatitis, alcoholic hepatitis, cirrhosis, fibrosis

– cancer - head and neck, esophageal, breast, liver, colorectal

–pancreatis

– reduced immune function - pneumonia, tuberculosis

25
Q

principles of cavity prep

A
remove enamel to identify extent of lesion at adj, smooth enamel margins
remove caries moving peripheral to deep
only then remove caries overlying pulp
external form modification
internal modification
26
Q

why so many dental schools?

A

dental shopping
natural movement with finishing uni and moving
dental anxiety

27
Q

justification for rads?

A
  • caries detection
  • review of overhanging restoration
  • review of presenting complaint - endodontically treated teeth
  • bone level assessment - bpes of 3
28
Q

alcohol effect on body?

A

–heart disease- cardiomyopathies, arrythmia, stroke, high blood pressure

–liver- steatitis, alcoholic hepatitis, cirrhosis, fibrosis

– cancer - head and neck, esophageal, breast, liver, colorectal

–pancreatis

–drug interactions

– reduced immune function - pneumonia, tuberculosis

– compliance with tx plans

29
Q

alcohol effect on oral?

A

oral cancer (50g alcohol per day increases risk 2-3 times)
erosion and tooth wear
trauma risk - violent behaviour and domestic abuse
halitosis
staining
caries
perio

30
Q

what is diazepam?

how does it work

A

benzodiazepine medicine that has sedative, anxiety-relieving and muscle-relaxing effects.
facilitation of GABA- inhibitory neurotransmitter in CNS

31
Q

oral effect diazepam?

A

xerostomia or excessive saliva production

32
Q

general effects diazepam?

A
addiction - higher in those with substance abuse history
decreased alertness
muscle spasms
constipation
anxiety
confusion
depression
GI upset
hypotension
headaches
nausea
sleep disorders
33
Q

what is sertraline?

how does it work

A

selectively inhibit reuptake of serotonin at presynaptic membrane

selective serotonin reuptake inhibitor
used in therapy of depression, anxiety disorders and obsessive-compulsive disorder.

34
Q

oral effect sertraline?

A

xerostomia

bruxism - grinding, attrition

35
Q

general effects sertraline?

A
nausea
dizziness
drowsiness
excessive sweating
diarrhoea
insomnia
gi upset
36
Q

how to restore endodontically treated teeth?

A

cuspal coverage = onlay

crown

37
Q

what causes jaw clicking?

A

anterior disc displacement with reduction

38
Q

advice on using corsodyl?

A

use at different time to brushing

39
Q

what are the issues with pt not taking course of clindamycin?

A

no resolution of spreading infection
systemic involvement
pt becomes seriously unwell

40
Q

what is dental anxiety?

A

fear or stress in dental setting

rated with MDAS scale
modified dental anxiety scale
5 item questionairre

41
Q

sugar free drinks- good or bad and why?

advice on straw use

A

good in terms of no sugar- but acidic .:. contributing to erosion

straw - back of mouth placement otherwise still washing teeth in acidic liquid

42
Q

tehcnique used for OHI

A

TIPPS

43
Q

what material for onlay

A

cast metals - gold/ palladium alloys
base metal alloys
porcelain
composite

44
Q

what does bpe 2 mean,
si,
tx indicated

A

Pockets < 3.5mm
First black band
completely visible

Supra or subgingival
calculus or plaque
retention factor
(overhang

Plaque and bleeding charts
repeat bpe next visit

45
Q

what does bpe 3 mean
si
tx indicated

A
Probing depth
3.5 - 5.5mm
First black band
partially visible,
indicating pocket of
4-5mm

• Plaque and bleeding charts
• Radiographs should be considered (in order
to establish if there is attachment loss)
Periodontal charting of sextants
scoring 3, after initial therapy

initial therapy including self-care advice (oral hygiene instruction and risk factor control) then post-initial
therapy, record a 6-point pocket chart in that sextant only

46
Q

what is gingivitis?]

what % adults suffer from?

A

a reversible plaque-induced inflammation of the gingivae. It is recognised by erythema, oedema and bleeding
on brushing or probing.

55% adults suffer from

47
Q

irmer?

A

ionising radiation medical exposure regulations

  • minimising unintended, excessive or incorrect medical exposure
  • ensuirng benefits outweigh the risk - justification

-keeping doses in diagnostics ALARP
as low as reasonably possible - optiminisation

48
Q

how to take medical history

A
heart and bleeding
chest and lungs
stomach and bowel
kidney and liver
skin and bones
fits and feints
diabetes
49
Q

how to take medical history

A
heart and bleeding
chest and lungs
stomach and bowel
kidney and liver
skin and bones
fits and feints
diabetes
50
Q

nodes would examine

A
occipital 
post auricular
pre auricular
parotid
facial - infraorbital, maxillary, supramandibular
submandibular
submental
superficial cervical
51
Q

tonsils

A

lingual
palatine
tubal
pharyngeal

52
Q

tonsils

A

lingual
palatine
tubal
pharyngeal

53
Q

how to modify if dentally anxious

A
relaxation technqiues
paced breathing
acclimitisation
encouraging question and answer
explaining all procedures fully