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) - -