Introduction: Precise anchorage control is critical for predictable orthodontic tooth movement. Extra‐alveolar mini-implants in the infrazygomatic crest (IZC) region benefit from robust cortical bone; however, the distribution of stress—and thus long-term stability—is heavily influenced by implant design, insertion angle, and force orientation. Finite element analysis (FEA) offers the robust method for simulating these biomechanical interactions. Objective: The study aims to evaluate von Mises stress distribution patterns in mini-implants and surrounding bone at various placement angles and force directions in the IZC region using finite element method (FEM), with the goal of determining the configuration that minimizes peak stress and optimizes load transfer. Material and Methods: Two 3D FEM models were generated to simulate orthodontic force applications on mini-implants with different geometric parameters and insertion angles. A static load of 3 N was applied to the implant head from three directions (horizontal, oblique, vertical) over four defined insertion angles. FE simulations were performed using Ansys Workbench v24 (a software developed and manufactured by ANSYS, Inc., Pennsylvania, USA however, both designs operate within the safe fatigue limits of titanium. These findings underscore the utility of FEA in optimizing implant design and surgical protocols for clinical success.
Shukla et al. (2026) studied this question.