Table 4.
Questionnaire responses (mean and SD) determined by VAS, n = 21
| Post-hoc analysis (p valuea) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Questionnaire questions | Answers from (0) to (10) | CHX | EO+ | LZ | Saline |
p valueb
Total difference |
CHX vs. EO+ | EO+ vs. LZ | LZ vs. Saline | CHX vs. LZ |
| 1) How was the taste of the product? | Very bad Very good |
4.95 ± 3.52 | 5.65 ± 2.70 | 7.5 ± 1.43 | 3.60 ± 2.48 | 0.0012 | n.s | 0.0116 | 0.0002 | 0.0069 |
| 2) How long did the taste remain in the mouth after rinsing? | Very long Very short | 3.20 ± 3.19 | 4.95 ± 2.65 | 5.10 ± 2.25 | 6.70 ± 2.94 | 0.0114 | n.s | n.s | n.s | 0.0413 |
| 3) How was your taste of food and drink affected? | Negative change Positive change | 3.80 ± 2.40 | 4.70 ± 1.90 | 5.20 ± 1.96 | 4.50 ± 1.36 | n.s. | n.s. | n.s. | n.s. | n.s. |
| 4) Was the use of the mouth rinse convenient? | Not convenient Very convenient |
6.75 ± 2.84 | 6.20 ± 2.28 | 6.75 ± 2.29 | 3.20 ± 3.43 | 0.0016 | n.s | n.s | 0.0003 | n.s |
| 5) What is your opinion about the rinsing time? | Very long Very short | 5.15 ± 1.46 | 2.90 ± 2.83 | 4.80 ± 1.91 | 4.95 ± 2.14 | n.s. | n.s. | n.s. | n.s. | n.s. |
| 6) What was your perception of the plaque reduction? | Insufficient Very efficient |
6.25 ± 2.67 | 6.30 ± 2.20 | 6.75 ± 1.74 | 3.20 ± 3.47 | 0.0030 | n.s. | n.s. | 0.0011 | n.s. |
aUsing Wilcoxon signed-rank test with Bonferroni adjustment for multiple comparison, p < 0.0125
bUsing Friedman test, p < 0.05
n.s. no statistically significant difference between each treatment, p > 0.0125