17. Comparison 10: video modelling acclimatisation for LA versus oral hygiene video.

Study	Outcome	Intervention	Control	Results
Al‐Namankany 2014	VAS	In the waiting room Mean: 7.05 (19.64 SD)	In the waiting room Mean: 15.97 (22.17 SD)	Difference in means = ‐8.90 (95% CI ‐20.17 to 2.34) P = 0.12
		Entering the dental clinic Mean: 22.88 (26.50 SD)	Entering the dental clinic Mean: 33.25 (25.21 SD)	Difference in means = ‐10.37 (95% CI ‐24.23 to 3.48) P = 0.14
		Sitting in the dental chair Mean: 13.39 (15.45 SD)	Sitting in the dental chair Mean: 31.60 (24.73 SD)	Difference in means = ‐18.21 (95% CI ‐29.35 to ‐7.06) P = 0.002
		LA Mean: 23.12 (26.70 SD)	LA Mean 86.55 (21.43 SD)	Difference in means = ‐63.42 (95% CI ‐76.71 to ‐50.13) P < 0.001

CI = confidence interval; LA = local anaesthetic; SD = standard deviation; VAS = visual analogue scale.