clinic questions

Question 1

how to examine

a. masseter
b. lateral pterygoid mm
c. temporalis

Answer 1

a. masseter: feel zygomas, pt tenses and relaxes
b. lateral pterygoid mm: feel behind tuberosity
c. temporalis: palpate head

Question 2

which area is commonly missed for r handed people when brushing

Answer 2

R 2-3 upper and lower

Question 3

3 things to check for with TMJ

Answer 3

• click
• crepitus (creak)
• opening (normally 3cm)

Question 4

what part of tooth is natural on 3/4 crown

Answer 4

buccal/ labial face

Question 5

Ø meaning

Answer 5

no caries but tx required (eg abrasion cavity, erosion)

Question 6

in charting, when should a restoration cover other cusps

Answer 6

onlay

Question 7

critical pH of

a. enamel
b. dentine

Answer 7

a. enamel: 5.5

b. dentine: 6.5- 7.0

Question 8

which pts may require calcium supplements and why

Answer 8

pts with dry mouth

saliva cannot provide Ca –> Ca to surface of tooth for fluorapatitie, caries forms underneath

Question 9

should uppers or lowers be restored first?

Answer 9

uppers

Question 10

what part of caries to remove first (lateral or floor) and why 3

Answer 10

sides first –>
see lateral spread
inc light in to cavity
inc space for instruments

Question 11

4 reasons to use excavators not drills to remove caries nr pulp

Answer 11

• if drills used, causes bacteraemia of pulp
• better vision
• can feel texture - once its hard, leave it bc its the advancing front, not infectious zone
• better control over how much tissue/ caries is removed

Question 12

2 linings to use with composite

Answer 12

GIC (inc resin modified- cariostatic due to F-)

flowable (composite resin, low filler)

Question 13

what is MIH

Answer 13

molar-incisal hypomineralisation of incisors and 6s
genetic / developmental hypomineralised enamel –> v susceptible to caries, pulpitis common as bacteria break through enamel

Question 14

tx of MIH

Answer 14

leave alone, or extract with ortho

cannot give LA due to pulpitis