Table 2.

Comparison of arch dimensions of adenoid and control subjects

Arch dimensions	Adenoid group (n=90) mean±sd (cm)	Control group (n=90) mean±sd (cm)	t-test	p
Maxillary arch
Total arch length	6.61±0.75	6.82±0.68	−1.98	0.049*
Inter-canine width	3.25±0.36	3.29±0.46	−0.68	0.497
Inter-premolar width	3.77±0.35	3.81±0.32	−0.92	0.360
Inter-molar width	4.44±0.40	4.47±0.41	−0.62	0.535
Mandibular arch
Total-arch length	5.84±0.69	6.18±0.62	−3.56	0.005*
Inter-canine width	2.65±0.32	2.80±0.40	−2.79	0.006*
Inter-premolar width	3.29±0.35	3.39±0.31	−1.99	0.048*
Inter-molar width	4.02±0.46	4.06±0.46	−0.47	0.639
Palatal vault dimensions
Palatal length	3.92±0.52	3.94±0.43	−0.33	0.740
Height at canines	0.59±0.15	0.50±0.15	4.06	<0.001*
Height at premolars	1.42±0.22	1.24±0.18	5.71	0.001*
Height at molars	1.43±0.26	1.28±0.19	4.53	<0.001*
Palatal volume	5.00±1.37	5.66±1.80	−2.77	0.006*

^*Statistically significant