Unit 307

Question 1

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

Answer 1

Pellicle / glycol-protein
It is a natural substance

Question 2

How is plaque formed?

Answer 2

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

Question 3

What is the micro-organism called that starts plaque?

Answer 3

Cocci
Streptococcus mutans

Question 4

NME sugars

Answer 4

Tinned fruit, syrups, juice, sweets

Question 5

what is dental calculus?

Answer 5

calcified dental plaque

Question 6

what is dental calculus made up of?

Answer 6

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

Question 7

What is another example of calcification?

Answer 7

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

Question 8

How can you tell if a pulp has been calcified?

Answer 8

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

Question 9

Gingivitis

Answer 9

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

Question 10

Why do gums appear red with gingivitis?

Answer 10

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

Question 11

What is advised to prevent gingivitis?

Answer 11

Toothbrushing and ID aids

Question 12

Can gingivitis turn chronic if not treated?

Answer 12

Yes

Question 13

What is periodontal disease known as?

Answer 13

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

Question 14

What advice is given to patients with perio?

Answer 14

Tooth brushing information and ID aid instructions.

Question 15

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

Answer 15

1. Scale and polish
2. perio treatment

Question 16

ANUG

Answer 16

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

Question 17

Which patients does ANUG tend to affect?

Answer 17

Smokers, under stress, sleep deprived, immunodeficiency

Question 18

How is ANUG treated?

Answer 18

Antibiotics and to book a clean 1 week after the course

Question 19

Blacks Classification 1

Answer 19

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

Question 20

Blacks classification II

Answer 20

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

Question 21

Blacks classification III

Answer 21

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

Question 22

Black classification IV

Answer 22

Same as class 3
Cavity DOES extend to the incisal edge

Question 23

Blacks classification V

Answer 23

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

Question 24

Blacks classification VI

Answer 24

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

Question 25

Tofflemire Matrix retainer

Answer 25

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

Question 26

Siqveland matrix retainer

Answer 26

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

Question 27

triangular wedges

Answer 27

deeper and wider proximal preparations To keep the band in place

Question 28

rounded wedges

Answer 28

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

Question 29

celluloid matrix strip

Answer 29

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

Question 30

Pro matrix

Answer 30

single use matrix band.

Question 31

Amalgam and where is this used?

Answer 31

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

Question 32

Who can not be treated with amalgam?

Answer 32

Pregnant women children under 15 years old

Question 33

Composite

Answer 33

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

Question 34

Restrictions with a composite filling

Answer 34

Eating anything hard for 24 hours

Question 35

Glass Ionomer restoration

Answer 35

Ployalkenoate powder and water temporary restoration releases fluoride over time

Question 36

Types of temporary cement

Answer 36

1. Kalzinol 2. zinc phosphate

Question 37

why are temporary cements good?

Answer 37

Strong and quick setting used for temp crowns, veeners

Question 38

zinc based liners

Answer 38

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

Question 39

Calcium hydroxide - liner

Answer 39

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

Question 40

Glass ionomer - lining

Answer 40

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