(a) Longitudinal cross section of the two endo-crown models. Monobloc (on the left) and endo-crown with primary abutment (on the right). (b) Longitudinal cross section of the numerical models describing their components. Monobloc (on the left) and endo-crown with primary abutment (on the right). (c) Configuration and boundary conditions of the numerical models with a force of 1400 N: (i) loading point is 5 mm from the restoration–tooth junction; (ii) loading point is 6 mm from the restoration–tooth junction; (iii) loading point is 7 mm from the restoration–tooth junction and (iv) loading point is 8 mm from the restoration–tooth junction.
