Table 4 The PACS Taxonomy for Scoring Tooth Surfaces
PACS code | Definition | Corresponding ICDAS codes |
|---|---|---|
S | sound or pits-and-fissures sealant on sound surface | 00, 10, 20 |
D1 | non-cavitated lesion on otherwise sound or sealed surface | 01, 02, 11, 12, 21, 22 |
D2 | cavitated lesion on otherwise sound or sealed surface | 03, 04, 05, 13, 14, 15, 16, 23, 24, 25 |
D3 | cavitated lesion extending into the dentine on an otherwise sound or sealed surface | 06, 26 |
F | filling on otherwise sound or sealed surface | 30, 40, 70, 80 |
FD1 | non-cavitated lesion on surface already having a filling | 31, 32, 41, 42, 71, 72, 81, 82 |
FD2 | cavitated lesion on surface already having a filling | 33, 34, 35, 43, 44, 45, 46, 73, 74, 75, 83, 84, 85 |
FD3 | cavitated lesion extending into the dentine on a surface already having a filling | 36, 76, 86 |
C | full crown on surface otherwise sound or sealed | 50, 60 |
CD1 | non-cavitated lesion on surface already partially covered by a crown | 51, 52, 61, 62 |
CD2 | cavitated lesion on surface already partially covered by a crown | 53, 54, 55, 63, 64, 65 |
CD3 | cavitated lesion extending into the dentine on a surface already partially covered by a crown | 56, 66 |
Y | unscorable or invisible surface (e.g., unexposed root) | 96, 99 |
M | surface on missing tooth | 97, 98 |