Table 8: Distribution of cases with overall tooth size discrepancies outside 2 SD from Bolton mean values (overall ratio X -= 91.3 ± 2 SD: 87.48 and 95.12, respectively).
-
|
Overall Ratio |
Classification |
Outside SD (%) |
SD2 (%) |
SD 1 (%) |
Mean (%) |
SD 1 (%) |
SD 2 (%) |
Outside SD (%) |
- |
< 87.4 |
87.4-89.3 |
89.4-91.2 |
91.3 |
91.4-93.2 |
93.3-95.1 |
>95.1 |
Class I |
- |
- |
1 (0.4) |
1 (0.4) |
222 (98.7) |
- |
1 (0.4) |
Class II |
- |
- |
15 (17.6) |
1 (1.2) |
69 (81.2) |
- |
- |
Class III |
- |
3 (11.5) |
21 (80.8) |
- |
2 (7.7) |
- |
- |
Normal |
- |
- |
16 (25.8) |
- |
46 (74.2) |
- |
- |