Akademik Veri Yönetim Sistemi
Clinical Dentistry and Research, cilt.47, sa.3, ss.47-55, 2023 (Hakemli Dergi)
Background and Aim: In wide resection surgeries, especially in oncological patients, the conventional design of AMSJI may not be applicable due to the lack of anatomical structures. The aim of this three-dimensional (3D) Finite Element Analysis (FEA) study is to examine and compare the stress distribution patterns surrounding two different designed subperiosteal implants.
Materials and Methods: Two different design AMSJI models made by titanium were created. Model 1 was prepared as conventional AMSJI design while in the zygomatic area a diagonal bar design (Le Fort 2 design) which was passes on the zygomaticomaxillary suture was applied at Model 2. Von mises stress were evaluated on the screws, the metal supported structure, abutments, and wings of AMSJI.
The loadings (Pmin, Pmax) on the nasal and zygomatic regions were recorded as MPa (N/mm2).
Results: VMs of AMSJI at the zygomatic region were excessively higher in Model 2 than Model 1, nevertheless, VMs around the abutments in Model 1 were twice much as Model 2. There were not observed quite different values at the other parameters.
Conclusion: AMSJIs are suitable options for especially severe bone defect in the jaws. In this presented study, it was observed that taking more support from the zygomatic bone and zygomaticomaxillary buttress could be suitable option for reconstruction of wide range of defected maxilla.