Table 2.

Means and SDs of the esthetic values for the baseline profile image and the manipulated mandibular retrusion and protrusion images as perceived by the four raters' groups.

Images	Laypersons (N = 30)			GDPs (N = 30)			Orthodontists (N = 30)			OMF surgeons (N = 30)
	Mean	SD	Sig	Mean	SD	Sig	Mean	SD	Sig	Mean	SD	Sig
−13 mm	27.32	21.57	0.000∗	11.50	12.74	0.000∗	7.46	5.70	0.000∗	29.70	16.21	0.000∗
−11 mm	23.73	17.58	0.000∗	15.83	11.04	0.000∗	12.43	7.94	0.000∗	22.50	15.87	0.000∗
−9 mm	41.41	26.04	0.000∗	35.89	21.33	0.000∗	29.43	8.72	0.000∗	44.05	13.91	0.000∗
−7 mm	44.73	23.51	0.006∗∗	52.44	29.32	0.001∗∗	43.96	11.99	0.000∗∗	41.95	17.12	0.000∗∗
−5 mm	73.77	21.37	0.996	82.28	12.72	0.983	79.71	12.11	0.000∗	72.15	24.19	0.890
−3.5 mm (baseline)	69.61	22.46		77.36	12.38		64.79	13.36		78.68	11.90
2 mm	71.86	24.75	1.00	82.83	18.69	0.936	72.04	13.52	0.192	80.50	11.11	1.00
0 mm	59.41	27.24	0.825	62.72	19.89	0.010∗∗	42.75	17.42	0.000∗∗	56.35	18.70	0.000∗∗
+2 mm	33.00	21.75	0.000∗∗	29.78	17.50	0.000∗	24.68	8.90	0.000∗	32.70	12.78	0.000∗
+4 mm	30.00	24.32	0.000∗	15.39	10.68	0.000∗	11.07	7.50	0.000∗	26.60	15.00	0.000∗
+6 mm	23.64	25.10	0.000∗	6.22	9.56	0.000∗	5.61	3.84	0.000∗	13.50	13.20	0.000∗

^∗Significance at P < 0.05 as a result of Tukey post hoc test. ^∗∗First significance appeared compared to the baseline image.