Altan, AhmetDamlar, IbrahimSahin, Osman2024-09-182024-09-1820160278-23911531-5053https://doi.org/10.1016/j.joms.2016.03.042https://hdl.handle.net/20.500.12483/13259Purpose: The aim of this study was to compare the nano-hardness and elastic modulus of titanium and resorbable screws and determine whether resorbable screws could completely replace titanium screws. Materials and Methods: The mechanical properties (nano-hardness and decreased elastic modulus) of TriMed titanium, resorbable Inion CPS, and Synthes RapidSorb samples were measured using a nanoindentation technique. In this study, a Hysitron TriboIndenter TI 950 with a resolution less than 1 nN and a displacement resolution of 0.04 nm was used for the nano-indentation tests. The unloading segments of the nano-indentation curveswere analyzed using the method of Oliver and Pharr (J Mater Res 7: 1564, 1992). Results: Statistical analysis showed that the values of the elastic modulus and nano-hardness of the TriMed titanium screws were significantly higher than those of the resorbable Inion CPS and Synthes RapidSorb screws (P < .05). A statistical difference was not observed between the values of the elastic modulus and the nano-hardness of the Inion CPS and Synthes RapidSorb screws (P > .05). Conclusions: In this study, the resorbable screws were found to be soft and flexible compared with the titanium screw. According to the results of this nano-indentation study, resorbable and titanium screws cannot be used interchangeably. (C) 2016 American Association of Oral and Maxillofacial Surgeonseninfo:eu-repo/semantics/closedAccessMandibular Angle FracturesBite ForcesIn-VivoStabilityOsteosynthesisPlateNanoindentationSurgerySystemsStressArticle74710.1016/j.joms.2016.03.042271341572-s2.0-84966784700Q1WOS:000378576200023Q2