Table 1.

Means and standard deviations of VAS rating by dentists and lay people to crown length discrepancy. (CL: Crown length in mm).

Variable	Dentists	Lay people	t-test	p-Value
CL 0	53.2 ± 25.5	48.4 ± 28.6	.957	.340 NS
CL 0.5	51.3 ± 23.2	57.7 ± 29	−1.32	.189 NS
CL 1	55.4 ± 22.1	57.9 ± 26.3	−.553	.581 NS
CL 1.5	48.1 ± 21.9	52.8 ± 22.9	−1.15	.252 NS
CL 2	44.2 ± 18.6	60.5 ± 24.7	−4.08	.000⁎⁎⁎
CL 2.5	39.5 ± 22.4	57.2 ± 25.4	−4.06	.000⁎⁎⁎
CL 3	41.9 ± 24.6	57.3 ± 25.7	−3.34	.001⁎⁎

NS: Not significant.

^∗p < 0.05.

^⁎⁎p < 0.01.

^⁎⁎⁎p < 0.001.