Table 1.
Items and descriptive statistics of the questionnaire I (Digital preparation analysis)
| Item | Item description | 25th percentile | Median | 75th percentile | N |
|---|---|---|---|---|---|
| Handling 1a | The menu guidance of the intraoral scanner and prepCheck-software is easily comprehensible. | 4 | 4 | 5 | 95 |
| Handling 2a (rec.) | The scanning process with the intraoral scanner handpiece does not cause me any difficulties. | 3 | 4 | 5 | 98 |
| Handling 3a | The analysis of the preparation with prepCheck is feasible. | 4 | 4 | 5 | 96 |
| Handling 4a | After the demonstration and exercises in the trainings module, I feel confident to use prepCheck by myself. | 4 | 4 | 5 | 97 |
| Didactic benefit 1a | The workflow of the intraoral scanner and prepCheck software is clear and understandable. | 4 | 4 | 5 | 96 |
| Didactic benefit 2a | Seeing my preparation on the monitor and getting an objective analysis with prepCheck, trains my own judgement | 4 | 5 | 5 | 98 |
| Didactic benefit 3a | Using prepCheck is as well training of intraoral scanning. | 4 | 4 | 5 | 98 |
| Didactic benefit 4a | The prepCheck report is helpful to improve my own performance regarding preparation. | 4 | 4 | 5 | 99 |
| Didactic benefit 5a | The prepCheck report is easy to understand. | 3 | 4 | 5 | 97 |
| Motivation 1a | Using new technologies (e.g. prepCheck) motivates me. | 4 | 4.5 | 5 | 98 |
| Motivation 2a | Analyzing my own preparation with prepCheck motivates me. | 4 | 4 | 5 | 96 |
| Motivation 3a (rec.) | I do not think that prepCheck as an additional course component is a chore. | 3 | 4 | 5 | 94 |
| Overall assessment b | If you consider the following aspects of the assessment of your preparation, what type of assessment would you prefer (dentist or prepCheck)? (1 = dentist, 5 = prepCheck) | ||||
| Overall assessment 1b | less time | 2 | 3 | 4 | 90 |
| Overall assessment 2b | easier handling | 2 | 3 | 4 | 88 |
| Overall assessment 3b | greater fault tolerance | 1 | 2 | 3 | 88 |
| Overall assessment 4b | more tips/ better feedback | 1 | 2 | 3 | 90 |
| Overall assessment 5b | enjoy practicing more | 2 | 3 | 3 | 92 |
N = number of valid answers (total: N = 104)
atype of answer: 1 = strongly disagree, 5 = strongly agree
btype of answer: 1 = evaluation by dentist, 5 = evaluation by prepCheck
rec: Handling 2 and Motivation 3 were recoded before the analysis of questionnaire, so that higher values also express a more positive assessment here