Table 3 Changes in centroid size of dental arch from age 12 through 15 to age 18 years.
Age (years) | Centroid size | p-value | Pair-wise comparison | p-value | ||
---|---|---|---|---|---|---|
Mean ± SD | Age pair | Mean ± SD | ||||
Upper | 12 | 1046.11 ± 49.95 | 12 vs 15 | −9.43 ± 18.59 | p < 0.001*** | |
15 | 1036.67 ± 51.35 | p < 0.001*** | 15 vs 18 | 3.46 ± 35.33 | p = 0.15ns | |
18 | 1040.13 ± 43.84 | 12 vs 18 | −5.98 ± 35.91 | p < 0.05* | ||
Lower | 12 | 883.46 ± 46.06 | 12 vs 15 | −9.84 ± 15.31 | p < 0.001*** | |
15 | 873.62 ± 48.07 | p < 0.001*** | 15 vs 18 | 1.46 ± 26.26 | p = 0.41ns | |
18 | 875.08 ± 50.80 | 12 vs 18 | −8.38 ± 29.02 | p < 0.001*** |