Table 1.

Questionnaire for participants' perceptions after using APBS and EMS.

Questions for participants	Anchor terms
(1) How do you judge the handling of the device?	(0 = very difficult; 100 = very easy)
(2) How do you judge the quality of the smile reconstruction picture?	(0 = very low; 100 = very high)
(3) How do you judge the fluidity of the software?	(0 = very complicated; 100 = very easy)
(4) Do you find the experience immersive?	(0 = very low; 100 = very high)
(5) Would you be interested in using a similar device in your daily practice?	(0 = no, never; 100 = yes, with pleasure)