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Biomechanical impact of thread type in complex bone fixation systems of favourable mandibular angle fracture: A finite element pre-study

The aim of this study is to determine the difference of biomechanical stability between four types of screw thread definitions in Abaqus simulations on a human mandible with a favourable fracture using conventional locking plate system. The conducted simulations show that the thread on screws which will be used for further comparison studies involving the design of novel osteosynthesis material for mandibular angle fractures can be a smooth cylinder with a 65% tied surface to the bendable plate. Needless to say, research involving experimental validation of this model will be conducted in the upcoming analyses, but using the forementioned screw’s thread definition will substantially lower computing time while simultaneously remaining the models’ accuracy.

mandibular angle ; favourable fracture ; finite element method ; medical implant ; maxillofacial surgery

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