Table 4. Respondents' satisfaction with different characteristics of whitening agent and procedure.
| Characteristics | Whitening product | |||
|---|---|---|---|---|
| WT | WP | WT + WP | p-value | |
| Final tooth color | 4.00 (3.00-4.00) | 4.00 (3.00-4.25) | 4.00 (3.00-4.00) | 0.632 |
| Length of treatment | 4.00 (3.00-4.00)a | 5.00 (3.75-5.00)a | 4.00 (3.00-5.00) | 0.027* |
| Comfort during treatment | 5.00 (4.00-5.00) | 5.00 (4.00-5.00) | 5.00 (3.00-5.00) | 0.541 |
| Overall satisfaction with treatment | 4.00 (3.00-5.00) | 4.50 (4.00-5.00) | 4.00 (3.00-5.00) | 0.103 |
| Values are shown as median and interquartile range. The same lowercase letter in a row indicates statistical significance between different teeth whitening agents (p˂0.05). Abbreviations: T0 - before treatment; T1 - 7 days after the commencement of use; T2 -14 days after the commencement of use; WT – whitening toothpaste, WP – whitening pen, WT + WP – whitening toothpaste and pen. | ||||