Table 4: Questionnaire used for qualitative assessment by 14 independent observers (all dentists).

Frontal  Images 1. Facial form Leptoprosopic
Mesoprosopic
Euryprosopic
1'. How confident are you about your answer?*
2. Corners of the mouth Higher than horizontal
Horizontal
Lower than horizontal
2'. How confident are you about your answer?*
Profile  Images 3. Nasolabial angle > 90°
90°
< 90°
3'. How confident are you about your answer?*
4. Lip closure Competent lips
Incompetent lips
4'. How confident are you about your answer?*
5. Lip step Enlarged lip step
Normal lip step
Reverse lip step
5'. How confident are you about your answer?*
6. Chin posture Prominent
Normal
Recessed
6'. How confident are you about your answer?*
7. To assess the facial soft tissues of a patient, which of the following modalities would you feel more confident using and analyzing? 2D photographs
3D facial scans

*Please rate your confidence in ability to judge the displayed images on a scale of 1 to 3, where 1 means “Not confident at all” and 3 means “Very Confident.”