Osce

Question 1

Distinguish between the PCP12 probe and CPITN probe.

Answer 1

CPITN (community periodontal index of treatment needs) - used for BPE, ball ended with 0.5mm diameter, one black band extends from 3.5mm to 5.5mm
PCP12 - used for a full periodontal pocket chart, has two black bands at 3mm intervals

Question 2

What are the hoe scalers used for?

Answer 2

hoe scaler (yellow) 134-135 - used for gross supra- and sub-gingival scaling of buccal and lingual surfaces
hoe scaler (red) 156-157 - used for gross supra- and sub-gingival scaling of mesial and distal surfaces

Question 3

What is the mini sickle and columbia curette scalers used for?

Answer 3

mini sickle (red) - double ended point scaler for supra-gingival use of buccal/lingual embrasure surfaces
columbia curette (red) 4R-4L - universal curette for sub-gingival use anywhere in mouth

Question 4

What are the gracey curette scalers used for?

Answer 4

gracey curette (grey) 1-2 - designed for fine/deep sub-gingival scaling of upper and lower anterior teeth
gracey curette (green) 7-8 - designed for fine/deep sub-gingival scaling of buccal/lingual surfaces of posterior teeth
gracey curette (orange) 11-12 - designed for fine/deep sub-gingival scaling of mesial surfaces of posterior teeth
gracey curette (blue) 13-14 - designed for fine/deep sub-gingival scaling of distal surfaces of posterior teeth

Question 5

What are the seating positions for scaling?

Answer 5

7 o clock - all surfaces of lower anterior teeth
9 o clock - buccal surfaces of UL and LL teeth, lingual surfaces of LR teeth
11 o clock - the rest (all surfaces of upper anterior teeth and UR teeth, lingual surfaces of UL and LL, buccal surfaces of LR teeth)