This study aimed to evaluate the stress concentration point in lithium disilicate and feldspar dental veneers using finite element techniques. Three-dimensional models were developed from ivorina teeth in a central incisor, considering the parameters of a standard restoration for an ideal thickness for the material. The simulation was performed under functional loads (174.6 N–220.24 N) and clinically representative conditions. The results indicated that lithium disilicate exhibited a maximum stress concentration of 268.4 MPa, with a safety factor of 1.78. In contrast, feldspathic ceramic exhibited maximum stresses of 127.2 MPa, with a lower safety factor (1.26). The stress distribution pattern between the two materials was different; the disilicate showed greater concentration at the incisal-cement junction, while the feldspar exhibited stresses dispersed toward the incisal third. The results show that disilicate offers better mechanical strength and lower deformation thanks to its better stress distribution compared to feldspathic ceramics. This study offers relevant information for planning aesthetic treatments with dental veneers according to the specific characteristics of each material.