Appendix Table: Description of the tests used to measure dental anxiety in reviewed articles. All tests are widely used in clinical and research practice.

Test	No. of Items	Description of the Test
Dental Anxiety Scale DAS [25]	4	Level of dental anxiety is measured from 4 (no fear) to 20 (extreme fear).
Dental Beliefs Survey DBS [26]	15	Explores patients’ confidence in dentist-patient interaction on a scale from 15 (highly positive beliefs) to 75 (highly negative beliefs).
Dental Fear Survey DFS [27]	20	Test varies from 20 to 100 and assesses 3 different areas of fear reactions: avoidance, autonomic arousal and fear of specific objects or situations.
Gatchel Fear Scale GFS [28]		Subjects are asked to rate their fear of dentist on a scale in which 1 means no fear, 5 moderate and 10 extreme fear.
Modified Dental Anxiety Scale MDAS [29]	5	Level of dental anxiety is measured from 5 (no fear) to 25 (extreme fear).