Table 2. Comparison of morphological characteristics among skeletal patterns.

Cast analysis	Skeletal Class I (n = 30) Mean ± SD (mm)	Skeletal Class II (n = 30) Mean ± SD (mm)	Skeletal Class III (n = 30) Mean ± SD (mm)	p-value
IC-cusp maxilla	31.7 ± 3.2	31.7 ± 3.6	32.8 ± 2.4	0.22
IC-cusp mandible	24.0 ± 2.8	24.5 ± 2.7	25.8 ± 3.0	0.03*
IC-gingiva maxilla	23.7 ± 2.4	23.3 ± 2.6	25.3 ± 2.9	0.01*
IC-gingiva mandible	19.1 ± 1.8	19.3 ± 3.0	20.4 ± 2.2	0.03*
IM-cusp maxilla	46.4 ± 8.1	48.0 ± 3.6	49.9 ± 3.1	0.04*
IM-cusp mandible	42.1 ± 3.4	42.6 ± 3.4	44.0 ± 3.8	0.40
IM-gingiva maxilla	34.5 ± 3.3	34.1 ± 3.2	36.2 ± 2.9	0.03*
IM-gingiva mandible	31.3 ± 2.8	32.5 ± 2.8	37.5 ± 2.7	0.02*

n = 90; SD = standard deviation, Kruskal-Wallis test, *p < 0.05; ** p < 0.001.

IC = intercanine width, IM = intermolar width.