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Table 2 Factor loadings of the PIDAQ item scale scores after principal component analysis and orthogonal rotation

From: Validity and reliability of the Persian version of the psychosocial impact of dental aesthetics questionnaire

  Dental self-confidence Social impact Psychological impact Aesthetic concern Cronbach’s Alpha if Item Deleted
1. I am proud of my teeth. 0.784* 0.007 0.174 0.162 0.861
2. I like to show my teeth when I smile. 0.655* −0.036 −0.076 0.119 0.897
3. I am pleased when I see my teeth in the mirror. 0.837* 0.051 0.085 0.183 0.851
4. My teeth are attractive to others. 0.792* 0.092 0.159 0.135 0.861
5. I am satisfied with the appearance of my teeth. 0.801* 0.193 0.285 0.100 0.851
6. I find my tooth position to be very nice. 0.733* 0.185 0.226 0.050 0.870
7. I hold myself back when I smile so my teeth don’t show so much. 0.300 0.581* 0.058 0.381 0.826
8. If I don’t know people well, I am sometimes concerned about what they might think about my teeth. 0.162 0.658* 0.184 0.349 0.829
9. I am afraid that other people could make offensive remarks about my teeth. 0.110 0.724* 0.283 0.032 0.880
10. I am somewhat inhibited in social situations because of my teeth. 0.051 0.646* 0.090 0.401 0.840
11. I sometimes catch myself holding my hand in front of my mouth to hide my teeth. 0.135 0.492* 0.158 0.469 0.832
12. Sometimes, I think people are staring at my teeth. −0.186 0.479* 0.169 0.327 0.854
13. Remarks about my teeth irritate me even when they are meant jokingly. 0.110 0.602* 0.503 −0.071 0.828
14. I sometimes worry about what members of the opposite sex think about my teeth. 0.081 0.594* 0.425 0.264 0.835
15. I envy the nice teeth of other people. 0.071 0.061 0.737* 0.199 0.818
16. I am somewhat distressed when I see other people’s teeth. 0.067 0.283 0.626* 0.317 0.874
17. Sometimes I am somewhat unhappy about the appearance of my teeth. 0.249 0.408 0.551* 0.234 0.871
18. I think that most people I know have nicer teeth than I do. 0.271 0.230 0.576* 0.317 0.881
19. I feel bad when I think about what my teeth look like. 0.269 0.391 0.575* 0.369 0.874
20. I wish my teeth looked better. 0.193 0.328 0.664* 0.050 0.870
21. I don’t like to see my teeth in the mirror. 0.170 0.313 0.299 0.583* 0.874
22. I don’t like to see my teeth in photographs. 0.267 0.037 0.341 0.684* 0.865
23. I don’t like to see my teeth while I look at a video of myself. 0.193 0.217 0.219 0.766* 0.874
Variance Explained (Initial solution) 9.036 2.824 1.257 0.937  
% of Variance Explained (Initial solution) 39.287 12.280 5.465 4.073  
% of Variance Explained (rotation solution) 18.017 15.303 14.821 12.964  
Cumulative % of Variance Explained (rotation solution) 18.017 33.320 48.141 61.105  
  1. P < 0.05 *