| Variables | % |
| Types of impressions received in the laboratory: |
|
| Physical impression | 39.4 |
| Digital impression | 9.5 |
| Both | 51.1 |
| Disinfection of impressions: |
|
| Yes (mentioned in the form) | 17.0 |
| No (mentioned in the form) | 18.1 |
| No (not mentioned in the form) | 64.9 |
| Requesting that the dentist take another impression: |
|
| Yes | 94.7 |
| No | 5.3 |
| Acceptance by the dentist to take another impression: |
|
| Always | 28.7 |
| Often | 37.2 |
| Rarely | 29.8 |
| Never | 4.3 |