From: Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population
Trait | Target tooth FDIa | Dichotomy expressionb | Dichotomy score (Tick the correct score observed on cast) | Dichotomy result | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Yes | No | ||||||||||||||
1 | Winging | 11, 21 | (1A-2) / (1A-4) | 1A | 1B | 2 | 3 | 4 | |||||||
2 | Shoveling-1 | 21 | (3-6) / (0-6) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | |||||
3 | Double shoveling | 21 | (2-6) / (0-6) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | |||||
4 | Shoveling-2 | 22 | (3-7) / (0-7) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||
5 | Interrupted groove | 22 | (M, D, MD, Med) / (0 - Med) | 0 | M | D | MD | Med | |||||||
6 | Tuberculum dentale | 22 | (1-9) / (0-9) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
7 | Mesial ridge (lingual) | 23 | (1-3) / (0-3) | 0 | 1 | 2 | 3 | ||||||||
8 | Premolar accessory cusp-4 | 24 | (1)/ (0-1) | 0 | 1 | ||||||||||
9 | Premolar accessory cusp-5 | 25 | (1)/ (0-1) | 0 | 1 | ||||||||||
10 | Cusp of Carabelli | 26 | (5-7) / (0-7) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||
11 | Hypocone absence | 27 | (0-1) / 0-5) | 0 | 1 | 2 | 3 | 4 | 5 | ||||||
12 | Lingual cusp variation | 35 | (1-9) / (0-9) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
13 | Sixth cusp | 36 | (1-5) / (0-5) | 0 | 1 | 2 | 3 | 4 | 5 | ||||||
14 | Seventh cusp | 36 | (1-4) / (0-4) | 0 | 1 | 2 | 3 | 4 | |||||||
15 | Deflecting wrinkle | 36 | (3) / (0 – 3) | 0 | 1 | 2 | 3 | ||||||||
16 | Protostylid | 36 | (1-7) / (0-7) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||
17 | Distal trigonid crest | 36 | (1)/ (0-1) | 0 | 1 | ||||||||||
18 | Hypoconulid absence | 37 | (0) / (4-5) | 0 | 4 | 5 | |||||||||
19 | Cusp number | 37 | (4) / (4, 5) | 4 | 5 | ||||||||||
20 | Y groove pattern | 37 | (y) / (Y, +, X) | Y | + | X |