Table 2.
Items and descriptive statistics of the questionnaire II (CAD/CAM-workflow)
| Item | Item description | 25th percentile | Median | 75th percentile | N |
|---|---|---|---|---|---|
| Handling 1a | The menu guidance of the intraoral scanner is easily comprehensible. | 4 | 4 | 5 | 93 |
| Handling 2a (rec.) | The scanning process with the intraoral scanner handpiece does not cause me any difficulties. | 3 | 4 | 4 | 94 |
| Handling 3a | The digital modelling of the restoration is good to perform. | 3 | 4 | 5 | 95 |
| Handling 4a | After the demonstration and exercises in the training module, I feel confident to perform the entire CAD/CAM workflow by myself. | 4 | 4 | 5 | 94 |
| Didactic benefit 1a | The workflow of the CAD/CAM workflow is clear and understandable. | 4 | 4 | 5 | 94 |
| Didactic benefit 2a | Seeing my preparation on the monitor trains my own judgement. | 4 | 5 | 5 | 95 |
| Didactic benefit 3a | By participating the training module, I acquired a good knowledge of the CAD/CAM workflow. | 4 | 5 | 5 | 93 |
| Motivation 1a | Using new technologies (e.g. intraoral scanning) motivates me. | 4 | 5 | 5 | 91 |
| Motivation 2a | The manufacturing of CAD/CAM restorations of my own preparation motivates me. | 4 | 5 | 5 | 92 |
| Motivation 3a (rec.) | I do not think that learning the CDA/CAM-workflow as an additional course component is a chore. | 4 | 5 | 5 | 92 |
| Overall assessment b | Which workflow do you prefer considering the following aspects? (1 = conventional, 5 = digital) | ||||
| Overall assessment 1b | less time | 4 | 5 | 5 | 89 |
| Overall assessment 2b | easier handling | 3 | 4 | 4 | 92 |
| Overall assessment 3b | greater fault tolerance | 2 | 3 | 4 | 82 |
| Overall assessment 4b | more tips/ better feedback | 3 | 4 | 5 | 90 |
| Overall assessment 5b | enjoy practicing more | 3 | 4 | 4 | 86 |
N = number of valid answers (total: N = 97)
atype of answer: 1 = strongly disagree, 5 = strongly agree
btype of answer: 1 = conventional workflow, 5 = digital workflow,
rec: Handling 2 and Motivation 3 were recoded before the analysis of questionnaire, so that higher values also express a more positive assessment here