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Table 5 Distribution of scores by dimension and for the total PIDAQ expressed in mean and SD

From: The effects of at-home whitening on patients’ oral health, psychology, and aesthetic perception

 

Baseline

1-week post bleaching

1-month post bleaching

Corrected item total correlation of sum

Cronbach Alpha’s if Item Deleted

Self Confidence

18.7 ± 5.5

21.3 ± 6.1*

22.1 ± 5.4*

−0.727

0.832

Social Impact

16.8 ± 7.5

15.5 ± 7.1*

15.7 ± 8.7

0.571

−2.543

Psychological Impact

16.0 ± 5.2

14.7 ± 5.6*

14.1 ± 5.6*

0.513

−1.088

Aesthetic Concern

7.2 ± 4.1

5.8 ± 3.1*

6.0 ± 3.1*

0.546

−0.627

PIDAQ

58.7 ± 11.1

57.2 ± 11.3

57.9 ± 12.7

  
  1. * = p < 0.05 compared to baseline by Wilcoxon test. Cronbach’s Alpha: 0.757