| Questionnaire |
| Please check the appropriate box or write your answer next to the Question. |
| 1. (a) With which type of toothbrush do you brush your teeth at home? |
manual toothbrush sonic toothbrush rotating toothbrush other |
| (b) Which model have you been using ? |
| 2. Was the app easy to understand? |
Yes No |
| 3. If it was difficult to understand, in what way? |
| |
| 4. Did you have the impression that the app gave you a better cleaning result? |
Yes No |
| 5. Could you imagine using the app in the future? |
Yes No |
| 6. Why? |
| 7. Would you recommend the app? |
Yes No |
| 8. Did use of the app bring about any changes in the way that you clean your teeth? |
Yes No |
| 9. What change(s) did you make? |
| 10. Did you have any problems using the app? |
Yes No |
| 11. If so, what were these problems? |
| 12. Do you have any other comments about the Oral-B app? |