Table 1.

Loading regime: forces and force components (N) acting on the model during simulation of the power stroke on three food types.

Muscle forces	Total	Grapes			Total	Dry fruits			Total	Nuts
		x	y	z		x	y	z		x	y	z
Anterior temporalis
Left	35.2	33.63	−9.90	3.50	18.3	17.46	−5.14	1.82	32.9	31.45	−9.26	3.27
Right	23.2	22.61	−5.32	0.71	18.2	17.72	−4.17	0.55	45.5	44.23	−10.41	1.38
Posterior temporalis
Left	22.8	14.81	−16.83	4.16	10.3	6.72	−7.64	1.89	16.2	10.53	−11.97	2.96
Right	12.3	8.08	−9.29	−0.76	13.9	9.14	−10.51	−0.86	37.8	24.76	−28.47	−2.34
Superficial masseter
Left	17.5	13.93	8.58	6.29	28.2	22.45	13.82	10.13	63.4	50.41	31.03	22.76
Right	48.3	41.14	14.47	−20.91	17.4	14.79	5.20	−7.53	32.4	27.62	9.70	−14.06
Deep masseter
Left	7.1	5.09	−0.96	4.87	3.4	2.46	−0.47	2.35	4.9	3.54	−0.67	3.38
Right	8.5	6.49	−0.41	−5.62	10.3	7.78	−0.52	−6.77	25.2	19.04	−1.28	−16.57
Medial pterygoid
Left	9.3	8.44	1.79	−3.49	24.4	22.17	4.69	−9.17	43.7	39.65	8.38	−16.41
Right	26.5	23.55	4.42	11.32	6.4	5.72	1.07	2.75	15.9	14.13	2.65	6.79
Reaction forces
Left condyle	–	−26.77	10.24	−2.10	–	−31.14	3.34	−3.33	–	−56.61	1.45	−7.08
Right condyle	–	−75.95	−1.20	0.00	–	−42.35	3.95	0.00	–	−99.67	18.31	0.00
Left M1	–	−53.59	−2.98	22.38	–	−43.52	−6.32	14.90	–	−84.62	−13.92	30.85
Left P4	–	−9.67	2.77	1.06	–	−6.12	0.07	2.34	–	−12.81	−0.42	5.12
Left P3	–	−11.68	4.65	−21.46	–	−3.22	2.62	−9.12	–	−11.49	4.86	−20.17