Clinical session 2

Question 1

What can be used for interdental cleaning?

Answer 1

• dental floss
• superfloss
• flosette
• interdental brushes
• water flosser

Question 2

what manual toothbrush technique is recommended

Answer 2

modified bass technique

Question 3

what are single tufted brushes good for

Answer 3

cleaning around implants, orthodontic appliances, crown and bridgework, difficult to reach areas

Question 4

why is chlorhexidine mouthrinse not recommended for routine everyday use

Answer 4

• causes extrinsic tooth staining
• calculus build up
• transient taste disturbance

Question 5

what BPE codes require a 6 point pocket chart

Answer 5

3,4 and *

Question 6

What can be recorded using a 6 point pocket chart

Answer 6

• probing depth
• bleeding on probing
• gingival margin
• loss of attachment
• mobility
• furcation involvement

Question 7

what is the minimum requirement for a six point pocket chart

Answer 7

to record all sites ≥4mm probing depth and bleeding on probing

Question 8

which periodontal probe do you use to do a 6 point pocket chart

Answer 8

PCP 12 probe

Question 9

What measurements do I record on a 6PPC

Answer 9

1. Probing depth (base of gingival crevice to gingival margin)
2. Recession (gingival margin the CEJ)
3. Loss of attachment (probing depth + recession)

Question 10

how do you calculate loss of attachment

Answer 10

probing depth + recession

Question 11

how is furcation graded

Answer 11

grade 1 = initial furcation involvement. The furcation opening can be felt on probing but the involvement is less than 1/3 of the tooth width

grade 2 = partial furcation involvement. Loss of support exceeds 1/3 or the tooth width but doesn’t include the total width of the furcation

grade 3 = through and through involvement. The probe can pass through the entire furcation

Question 12

how is mobility graded

Answer 12

grade 0 - ‘physiological’ mobility measured at the crown level. The tooth is mobile within the alveolus to about 0.1-0.2mm in a horizontal direction

grade 1 - increased mobility of the crown of the tooth to at most 1mm in a horizontal direction

grade 2 - visually increased mobility of the crown of the tooth exceeding 1mm in a horizontal direction

grade 3 - severe mobility of the crown of the tooth in both horizontal and vertical directions impinging on the function of the tooth.

Question 13

what would the loss of attachment be if the probing depth = 8mm and the recession was -3mm?

Answer 13

5mm

Question 14

what would the loss of attachment be if the probing depth = 4mm and the recession was 2mm?

Answer 14

6mm

Question 15

what are the 6 sites around the teeth you place the probe in

Answer 15

• disto-buccal
• mid- buccal
• mesio-buccal
• disto- palatal
• mid-palatal
• mesio-palatal
  (n. b. lingual in lower)

Question 16

what is correct placement of the probe in the pocket

Answer 16

• probe tip gently placed into gingival crevice until it reaches the base
• position as parallel as possible to the tooth surface (parallelism)
• the side of the probe tip should be kept in contact with the tooth surface (adaptation)
• probe is “walked” around the gingival margin of the tooth

Question 17

what probe is used for furcation involvement

Answer 17

nabers probes

Question 18

you carry out a 6PPC and record the following measurements for the mesio-buccal site of tooth 21:

bleeding on probing = 1
gingival margin = -2
probing depth = 7
mobility = grade 1

calculate the loss of attachment in millimeters for the mesio-buccal site of tooth 21

Answer 18

5mm

Question 19

how much pressure should you apply when “walking” the gingiva with the probe in a 6PPC

Answer 19

25mg pressure

need to press a bit cause need to get through any granulous tissue but don’t want to create new pockets