Table 2.

Item-wise factor loading after Principal Component Analysis and varimax rotation with Kaiser normalization, amount and percentages of explained variance, Cronbach’s alpha if item deleted, and reliability of each subscale

Items	Components				Cronbach’s alpha if item deleted
	SI	DSC	PI	AC
Proud of teeth	0.254	0.789*	−0.065	0.061	0.924
Like to show teeth	0.176	0.641*	−0.333	0.337	0.926
Pleased to see teeth in the mirror	0.169	0.783*	0.273	0.100	0.922
Teeth are attractive	0.071	0.753*	0.248	0.193	0.923
Satisfied with appearance	0.17	0.740*	0.303	0.039	0.923
Find tooth position nice	0.098	0.713*	0.278	−0.054	0.925
Hold back when I smile	0.379*	0.199	0.026	0.356	0.925
What others think	0.712*	0.132	0.157	0.148	0.922
Offensive remarks	0.741*	0.123	0.232	0.183	0.921
Inhibited in social contacts	0.801*	0.063	0.039	0.166	0.922
Hide my teeth	0.718*	0.12	0.078	0.142	0.922
People stare	0.698*	0.195	0.081	0.050	0.923
Irritated on remarks	0.741*	0.071	0.224	0.127	0.922
Worry about opposite sex	0.712*	0.207	0.164	0.137	0.921
Envy	0.356	0.024	0.564*	0.254	0.924
Somewhat distressed	0.462	0.134	0.531*	0.229	0.922
Somewhat unhappy	0.176	0.395	0.624*	0.052	0.923
Others have nicer teeth	0.407	0.225	0.552*	0.017	0.923
Feel bad	0.711*	0.191	0.358	0.232	0.919
Wish teeth looked better	0.076	0.184	0.734*	0.207	0.924
Don’t like teeth in mirror	0.498	0.163	0.243	0.416*	0.922
Don’t like teeth in photo	0.269	0.109	0.219	0.842*	0.923
Don’t like teeth on video	0.264	0.088	0.207	0.856*	0.923
Amount of variance explained (initial solution)	8.29	2.52	1.48	1.28
Percentage of variance explained (initial solution)	37.70	11.44	6.71	5.83
Percentage of variance explained (rotated solution)	22.44	17.06	11.95	10.23
Cronbach’s α	0.86	0.88	0.83	0.83

*Salient factor loading

The values in bold indicate the items showing similar factor loading under a particular domain