Table II.

Showing results of ANOVA with post hoc tukeys HSD test of symphyseal parameters in different A-P jaw relationships.

Parameters	Class I (n=30)		Class II (n=30)		Class III (n=30)		p-value ANOVA	Tukeys post hoc HSD test
	Mean	±SD	Mean	±SD	Mean	±SD		I and II ‘p-value’	I and III ‘p-value’	II and III ‘p-value’
Id-Me (mm)	29.68	3.67	30.33	3.92	29.60	3.52	0.0067**	0.631NS	0.000**	0.002**
Pog to B-Me (mm)	4.78	0.86	4.55	0.93	4.92	1.03	0.0042**	0.045*	0.351NS	0.004**
Width (w) (mm)	14.08	1.68	14.53	2.18	13.02	1.90	0.009**	0.62NS	0.08 NS	0.008**
Height (H1) (mm)	20.30	4.77	20.35	2.78	20.90	3.39	0.831NS	0.960NS	0.576NS	0.494NS
Height (H2) (mm)	43.00	4.39	43.25	4.02	42.75	5.65	0.963Ns	0.818NS	0.848NS	0.694NS
LA (mm)	3.27	1.05	3.12	1.06	2.82	1.32	0.307Ns	0.583NS	0.148NS	0.334NS
LP (mm)	4.62	1.53	4.78	1.56	3.22	1.12	0.000**	0.017*	0.001**	0.001**
H1/W (mm)	1.50	0.28	1.43	0.28	1.61	0.29	0.049*	0.570NS	0.313NS	0.040*
H2/W (mm)	3.12	0.56	3.05	0.61	3.27	0.69	0.962NS	0.656NS	0.360NS	0.201NS
D/W (mm)	0.83	0.10	0.79	0.11	0.77	0.21	0.214NS	0.130NS	0.117NS	0.575NS
Actual S. (mm)	6.23	1.86	6.17	2.36	7.80	2.27	0.006**	0.899NS	0.017*	0.012*
Eff. S.(mm)	1.92	1.54	1.77	2.77	2.47	1.27	0.354Ns	0.796NS	0.137NS	0.213NS
Id-B-Pog (deg)	148.37	11.49	148.30	9.73	156.266	8.72	0.0011*	0.8990NS	0.003**	0.003**
Id-B-MP (deg)	91.70	7.93	92.20	7.85	81.23	8.72	0.000**	0.807NS	0.001**	0.001**
α (deg)	97.70	9.15	99.17	7.49	86.82	11.26	0.001**	0.499NS	0.001**	0.001**

^**p < 0.01,

^*p < 0.05,

NS-Non-significant