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Belief in the capabilities of aligners in comparison to standard fixed appliance among the respondents
| Country/Answer | Better than fixed braces treatment | I don’t know | Is not as precise as with brackets | They are perfect |
|---|---|---|---|---|
| Chile | 37 (5,5%) | 371 (55,4%) | 183 (27,3%) | 79 (11,8%) |
| Poland | 27 (6,4%) | 220 (52,1%) | 162 (38,4%) | 13 (3,1%) |
| Sum | 64 (5,9%) | 591 (54,1%) | 345 (31,6%) | 92 (8,4%) |
| Difference CL/PL | 0.640 | 0.325 | < 0.001 | < 0.001 |
