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Lilys dental revision > Unit 307 > Flashcards

Unit 307 Flashcards

1
Q

What is the first layer of plaque called and is it harmful?

A

Pellicle / glycol-protein
It is a natural substance

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2
Q

How is plaque formed?

A

bacteria from food, drinks, saliva gathering on the tooth surface.

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3
Q

What is the micro-organism called that starts plaque?

A

Cocci
Streptococcus mutans

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4
Q

NME sugars

A

Tinned fruit, syrups, juice, sweets

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5
Q

what is dental calculus?

A

calcified dental plaque

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6
Q

what is dental calculus made up of?

A

calcium phosphate mineral salts and the micro-organisms in the area.

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7
Q

What is another example of calcification?

A

Patient has had trauma
previous RCT, pulp chamber gets filled with hard calcified tissue.

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8
Q

How can you tell if a pulp has been calcified?

A

X-ray
Changed colour - darker
Can appear their is no pulp chamber present.

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9
Q

Gingivitis

A

Plaque should be removed when developing after 2-3 days it will realise toxins that will irritate the tissues.

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10
Q

Why do gums appear red with gingivitis?

A

White blood cells are rushed to the infected area to kill bacteria - causes a raise in temperature and inflammation.

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11
Q

What is advised to prevent gingivitis?

A

Toothbrushing and ID aids

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12
Q

Can gingivitis turn chronic if not treated?

A

Yes

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13
Q

What is periodontal disease known as?

A

Chronic gingivitis
Affects the periodontal membrane and alveolar bone - causing mobility due to not having many attachments left.

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14
Q

What advice is given to patients with perio?

A

Tooth brushing information and ID aid instructions.

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15
Q

What are the 2 ways to help gum disease in a dental practice?

A
  1. Scale and polish
  2. perio treatment
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16
Q

ANUG

A

Painful infection
gums appear in a bright red colour, sore to brush

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17
Q

Which patients does ANUG tend to affect?

A

Smokers, under stress, sleep deprived, immunodeficiency

18
Q

How is ANUG treated?

A

Antibiotics and to book a clean 1 week after the course

19
Q

Blacks Classification 1

A

Single surface that has a cavity
pits and fissures of molar teeth
occlusal of the posterior teeth
cingulum upper anterior teeth

20
Q

Blacks classification II

A

Cavities found in 2 surfaces or more on posterior, molar and premolar e.g mesial occlusal

21
Q

Blacks classification III

A

cavity is located mesial or distal on any of the anterior teeth
DOES NOT include incisal edge

22
Q

Black classification IV

A

Same as class 3
Cavity DOES extend to the incisal edge

23
Q

Blacks classification V

A

Cavities located close to the gumline e.g. labial, buccal, lingual, palatal

24
Q

Blacks classification VI

A

Cavities on incisal edges of anterior teeth and cusps tips of posterior teeth.

25
Q

Tofflemire Matrix retainer

A

Class II restorations
Helps to correct shape and structure of the tooth.

26
Q

Siqveland matrix retainer

A

Self adjusting wide or narrow
provide a wall for teeth that have one or more missing proximal wall.

27
Q

triangular wedges

A

deeper and wider proximal preparations
To keep the band in place

28
Q

rounded wedges

A

shallower and narrower proximal preparations.
To keep the band in place

29
Q

celluloid matrix strip

A

where the proximal wall of the tooth is missing of an anterior tooth.
Class III and class IV restorations.
Placed interproximal

30
Q

Pro matrix

A

single use matrix band.

31
Q

Amalgam and where is this used?

A

Permanent restoration made of mercury and a metal alloy powder.
Used on posterior, molar teeth
Best used on LARGER cavities

32
Q

Who can not be treated with amalgam?

A

Pregnant women
children under 15 years old

33
Q

Composite

A

Permanent filling, matches the shade of a natural tooth
ANY sized cavity

34
Q

Restrictions with a composite filling

A

Eating anything hard for 24 hours

35
Q

Glass Ionomer restoration

A

Ployalkenoate powder and water
temporary restoration
releases fluoride over time

36
Q

Types of temporary cement

A
  1. Kalzinol
  2. zinc phosphate
37
Q

why are temporary cements good?

A

Strong and quick setting
used for temp crowns, veeners

38
Q

zinc based liners

A

Zinc oxide eugenol
creates a second layer of dentin to protect the pulp - pulp capping
best under amalgam

39
Q

Calcium hydroxide - liner

A

mixed paste - calcium hydroxide and resin
premixed - light cured
create a second layer of dentine to protect the pulp
lining used for non-metallic fills

40
Q

Glass ionomer - lining

A

used under composite restorations
class I and class II
relives stresses that can be caused from the shrinkage of the comp during cure

Lilys dental revision (4 decks)

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