Abstract
The midpalatal suture (MPS) corresponds to the tissue that joins the two maxillary bones. Understanding the mechanical behavior of this tissue is of particular interest to those patients who require orthodontic treatments such as Rapid Maxillary Expansion (RME). The objective of this research was to observe the influence of interdigitation and collagen fibers on the mechanical response of MPS. To this end, a finite element analysis in two-dimensional models of the bone-suture-bone interface was performed considering the characteristics of the MPS. The geometry of the suture was modeled with 4 different levels of interdigitation: null, moderate, scalloped and fractal. The influence of collagen fibers, aligned transversely along the suture, was considered by incorporating linked structures of the bone fronts. According to the results, the factor that has the greatest impact on the magnitude and distribution of stresses is the interdigitation degree. A higher level of interdigitation produces an increase in tissue stiffness and a lower influence of collagen fibers on the mechanical response of the tissue. Therefore, this research contributes to the understanding of the MPS biomechanics by providing information that may be useful to health staff when evaluating the feasibility of procedures such as RME.
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All authors contributed to the study conception and design. The implementation of the computational models and the obtaining of results were carried out by José Alejandro Guerrero Vargas. Analysis and discussion of the results were performed by all authors. The first draft of the manuscript was written by José Alejandro Guerrero Vargas and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Guerrero Vargas, J.A., Carvalho Trojan, L., de Las Casas, E.B. et al. Finite element analysis of the influence of interdigitation pattern and collagen fibers on the mechanical behavior of the midpalatal suture. Med Biol Eng Comput 61, 2367–2377 (2023). https://doi.org/10.1007/s11517-023-02838-7
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DOI: https://doi.org/10.1007/s11517-023-02838-7