Progress in Orthodontics

Table 1 Measurements of buccal inter-radicular cortical bone thickness at 4 mm from the alveolar crest in the upper arch

From: Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions

		Mean	Std. deviation	P value
CBT at midline	High angle	.8333	.17386	0.874
	Normal	.8450	.10464
	Low angle	.8786	.05669
CBT at 1/2	High angle	.8750	.02739	0.685
	Normal	.9017	.19156
	Low angle	.8814	.41894
CBT at 2/3	High angle	.9333	.13292	0.545
	Normal	.9400	.15556
	Low angle	.9886	.20772
CBT at 3/4	High angle	.8950	.17479	0.253
	Normal	.9867	.15358
	Low angle	.9886	.13108
CBT at 4/5	High angle	.9383	.07223	0.888
	Normal	.9717	.14077
	Low angle	.9757	.12232
CBT at 5/6	High angle	.9000 a	.03162	0.003*
	Normal	.9357 ab	.12952
	Low angle	1.0883 b	.02440
CBT at 6/7	High angle	.9167 a	.02582	0.035*
	Normal	.9633 ab	.06055
	Low angle	1.1457 b	.21953

Descriptive statistics, overall significance by Kruskal–Wallis test, and the results of pair-wise comparisons with the Mann–Whitney U test with the Bonferroni adjustment
*Significant at P ≤ 0.05. Different letters are statistically significantly different

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