Magnesium Plate Research Articles

Use of corn carbon as an additive to enhance magnesium metal self-corrosion and recover phosphorus from swine wastewater in the form of struvite.

Recovery of phosphate from swine wastewater is significant for alleviating eutrophication in aquatic ecosystems and addressing the increasing scarcity of phosphorus resources. In this study, a method for phosphate recovery from swine wastewater using corn carbon as an additive and non-dynamic magnesium metal self-corrosion was studied. The effects of reaction time, C:Mg mass ratio, stirring rate, and aeration rate on phosphate recovery were discussed, and eight experimental models were explored. The results demonstrated that when the optimal reaction time was 7h, the mass ratio of corn carbon to the magnesium plate was 5:1. When the stirring rate was 800rpm/min and the aeration rate was 0.48m3/L·h, the pH value of wastewater was 9.24, and the phosphate recovery rate was 95.61%. The recovered precipitate was characterized by SEM-EDS and XRD as struvite with excellent crystal shape. This method not only successfully achieved waste treatment but also recovered phosphorus from swine wastewater.

Biomechanical stability of magnesium plate and screw fixation systems in LeFort I osteotomy: a three-dimensional finite element analysis

BackgroundTitanium (Ti–6Al–4 V) is used for fixation in LeFort I osteotomy, a procedure for treating midface deformities. This study assessed the biomechanical stabilities of two Mg alloys (WE43 and ZK60) as biodegradable alternatives and compared them against Ti using finite element analyses. The LeFort I osteotomy procedure was simulated, and various plate and screw configurations were tested. The maximum principal and peak von Mises stresses in the metal plates and bone screws were measured under four load conditions, and the stability was evaluated.ResultsThe holes in the Mg screws, as compared with the Ti counterparts, exhibited higher and lower stress levels in the cortical and cancellous bones, respectively. The Mg screws also exhibited a higher fracture risk. The ZK60 plate, as compared with the Ti and WE43 plates, exhibited a lower fracture risk under all load conditions. ZK60 exhibited higher biomechanical stability in terms of maintaining the gap between osteotomy surfaces and lower fracture risk; the osteotomy surfaces with Ti im-plants underwent bone impaction, resulting in gap closure.ConclusionsAlthough the Mg implants exhibited better stress distribution, their screw strength requires improvement. Appropriate improvements can promote the use of Mg alloys in bone fixation applications.

A multi-domain computational framework investigating the short- and long-term viability of bioabsorbable magnesium fixation for tibial fractures

This study presents a multi-domain computational framework to investigate the long-term performance of permanent and bioabsorbable magnesium fixation devices in orthopaedic fracture applications. The framework integrates a coupled model for bone fracture healing and remodeling, with an enhanced surface-based corrosion model to predict the performance of bioabsorbable magnesium devices. It was found that plated fracture fixation enabled fracture healing outcomes compare to non-plated models by facilitating direct fracture healing. During the fracture healing phase, it was found that the stiff titanium plate provided a better healing response compared to the less stiff bioabsorbable magnesium plates. However, in the longer-term remodeling phase, the titanium plate showed evidence of stress-shielding and inhibited bone remodeling. On the other hand, the magnesium plates showed that there was continued remodeling, which meant that the bone tissue gradually returned to the pre-fracture stress state. While the corrosion rate and pit severity heavily influenced the mechanical support provided by the corroding magnesium fixator, the results showed that fixation was only required to provide mechanical stability to the fracture region for approximately the first 30 days for successful fracture union to occur. This coupled computational framework provides a platform to investigate the role of a wide range of magnesium fixation devices and their design and optimisation in orthopaedic applications.

Improving Corrosion Resistance By Anodizing of Aluminum Vapor-Deposited Magnesium

Magnesium can be widely available in various engineering applications, such as electronic components and vehicles, due to their light weight and high specific strength. However, magnesium easily corrodes in our environments, thus surface finishing is very important for improving corrosion resistance of magnesium. Although plasma electrolytic oxidation (PEO) is widely used for the corrosion protection of magnesium, this method requires higher voltages more than 200-300 V. In the present investigation, we describe a novel corrosion protection method of magnesium via vacuum vapor deposition of thin aluminum and subsequent anodizing.Commercially available 99.95 wt% magnesium plates were electrochemically polished in a 0.5 M NaCl/diethylene glycol solution (308 K) at 75 V for 3 min. After electropolishing, a thin aluminum layer measuring up to 2 µm in thickness was coated onto the magnesium specimens by vacuum deposition. The aluminum-deposited magnesium specimens were anodized in a 0.3 M oxalic acid solution at a constant current of 30 Am-2 for up to 60 min to form anodic porous alumina. Finally, the anodized specimens were immersed in boiling water for 15 min to seal the pores. The surface and cross-section of the anodized specimens were examined by optical microscopy (OM) and scanning electron microscopy (SEM).Figure 1 shows the voltage-time curves of the aluminum-deposited magnesium specimens during constant current anodizing in a 0.3 M oxalic acid solution at 30 Am-2. Here, the thickness of aluminum layer was adjusted to a) δ = 100 nm, b) 500 nm, c) 1 µm, and d) 2 µm. In the case of thinner aluminum thickness such as 100 nm and 500 nm, the voltages exhibit an almost steady value, and the dissolution of the bottom magnesium substrate was observed by SEM observations. This is due to the presence of microdefects reaching the magnesium substrate in the thin aluminum film. On the other hand, the voltages increase to approximately 30-35 V during anodizing using thick aluminum layer-deposited specimens, and an anodic porous alumina was formed. However, the voltage drastically decreased, and the magnesium substrate dissolved. Consequently, a corrosion-resistant porous alumina film could be successfully formed on the magnesium specimen by choosing the appropriate anodizing time. Figure 1

Electropolishing of Magnesium and Its Alloys in Highly Safe Sodium Chloride/Glycol Solutions

Magnesium and its alloys are expected to be used in various engineering fields, such as automobiles, trains, and electronic product enclosures due to their lightness and mechanical properties. Electropolishing of magnesium surfaces is an important technique for fundamental research works and industrial applications, and perchloric acid or nitric acid is typically used for electropolishing. However, these acids are highly reactive and hazardous, thus the usage should be avoided in the industrial application processes. In this study, we demonstrated a highly safe electropolishing process of magnesium using a novel sodium chloride/glycol solution.High-purity magnesium plates (99.95 wt%, 1 mm thick) were used as the starting materials. The specimens were ultrasonically degreased in ethanol for 10 min. The magnesium specimen as the anode and a platinum plate as the cathode were immersed in four types of glycol solutions including 0.5 M NaCl/ethylene glycol (EG), diethylene glycol (DEG), triethylene glycol (TrEG), and tetraethylene glycol (TeEG) solutions at 278-308 K, and linear sweep voltammetry (0.1 Vs-1) and constant voltage electrolysis (25-100 V) were carried out. After electrolysis, the surface of the specimens was examined by stereo microscopy (SM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The regular reflectance from the magnesium surfaces was measured using a spectrophotometer. Two types of industrial magnesium alloys including Mg-Al alloy, AZ31, and Mg-Li alloy, LZ91, were also used for electrolysis.As the voltage-current curves were measured by linear sweep voltammetry of the pure magnesium specimen in four types of glycol solutions, clear diffusion limiting currents were obtained after the initial current increases. We found that the unevenness of the magnesium specimens decreased by constant voltage electrolysis at appropriate applied voltages in NaCl/DEG and NaCl/TeEG solutions. Figure 1a shows the surface appearances of pure magnesium, LZ91, and AZ31 after constant voltage electrolysis at 50 V in NaCl/DEG solution for 60 min. The pure magnesium specimen and LZ91 alloy were successfully electropolished by constant voltage electrolysis and mirror-finished surfaces were obtained. On the other hand, the AZ31 alloy exhibited a nonuniform appearance with the coexisting of metallic luster and brownish regions, although a mirror-finished surface was obtained. The difference of the electropolishing behaviors between LZ91 and AZ31 alloys may be due to the metallographic structure such as the solid solution and intermetallic compound. Three-dimensional magnesium specimens possessing the curved and spiral structures could also be electropolished by constant voltage electrolysis in NaCl/DEG (Fig. 1b). Figure 1

(General Student Poster Award Winner, 2nd Place) 3D Impedance Analysis on Mg Dissolution and Its Application to Machine Learning

Magnesium is expected to be as a battery anode material because of its low standard electrode potential. However, the magnesium is actively dissolved in the electrolyte solution with hydrogen evolution [1-4], which may lead to the self-discharge of the battery. Thus, the method for the life prediction of magnesium electrode as anode material is required to develop the batteries with longer lives. In the present study, we applied the machine learning for the prediction of the Mg electrode life. The 3D impedance measurement [5] of Mg electrode was carried out to obtain the parameters attributed to the Mg dissolution. These obtained parameters were applied for the machine learning to predict the electrode life.Electrochemical measurements were performed in a three-electrode system. The working electrode was a pure magnesium plate (3 mm × 15 mm × 15 mm). A platinum wire and a saturated KCl silver / silver chloride electrode were used as the counter electrode and the reference electrode, respectively. The 3D impedance measurements were performed in a frequency range of 100 kHz to 0.01 Hz at 5 frequencies per decade and an applied DC current of 0 A. In this case, the input current amplitude was controlled to keep the output potential amplitude below 10 mV. Further, the pH detection near the magnesium electrode using iridium oxide wire and the video observation of the magnesium electrode were performed during 3D impedance measurement. The parameters estimated by the curve-fitting of the instantaneous impedance at arbitrary time from the 3D plots of impedance using an equivalent circuit were used for machine learning.Video observation of the magnesium electrode during the 3D impedance measurement indicated that the black region was observed and spread over entire the electrode surface due to the breakdown of the oxide film [2]. The detection of pH near the magnesium electrode confirmed that the pH was increased significantly due to the growth of black region [2]. The 3D plots of impedance demonstrated that the impedance was decreased with time. In the present study, the parameters involving the solution resistance, charge transfer resistance, and electric double-layer capacitance were estimated by curve-fitting of the instantaneous impedance at arbitrary time from the 3D plots of impedance using the equivalent circuit. These parameters including pH and dissolution area were applied for the machine learning to discussed the life prediction method of magnesium electrode.

Three-dimensional semiquantitative evaluation of reactive emphysema in magnesium implant models

Background Magnesium alloys have great potentials as bioabsorbable implants, whereas the difficulty in evaluating hydrogen gas produced in the degradation process has hindered their research and development. In this study, we investigated the possibility of industrial microfocus X-ray computed tomography (micro-CT) for the precise evaluation of subcutaneous emphysematous changes in a rabbit implantation model. Methods Magnesium plates with/without porous venting were implanted under skin defects on the backs of rabbits. The graft sites were examined by industrial micro-CT after sacrificing. The captured images were reconstructed three-dimensionally for volumetric analyses. The tissues of the graft site were also examined in the traditional histological investigation. Results We were able to image and numerate the shape and volume of subcutaneous emphysema using industrial micro-CT. The volume of emphysema was suppressed by pores punched in samples, and this trend increased as the number of pores increased. In the traditional histological examination, inflammatory changes were observed, but the emphysema could not be measured quantitatively. Conclusions Industrial micro-CT imaging makes it possible to visualize and evaluate magnesium-induced subcutaneous emphysema in animal experiment. This cross-border technology has the potential to be widely applied to other life science fields.

Recovering nutrients and unblocking the cake layer of an electrochemical anaerobic membrane bioreactor

The sustainable development strategy shifts water treatment from pollution removal to resource recovery. Here, an electrochemical resource-recovery anaerobic membrane bioreactor (eRAnMBR) that employed a magnesium plate and conductive membrane as dual anodes is presented and shows excellent performance in carbon, nitrogen, and phosphorus recovery, as well as 95% membrane anti-fouling. The Mg2+ released alters the physicochemical properties of sludge, unblocking the cake layer, and recovers ammonium and phosphate, yielding 60.64% purity and 0.08 g d−1 struvite deposited onto cathode to be separated from sludge. The enhanced direct interspecies electron transfer, along with hydrogen evolution and alkalinity increase due to the electrochemical reactions, significantly increase methane yield and purity (93.97%) of the eRAnMBR. This increased internal energy can cover the additional electricity and electrode consumption. This integrated eRAnMBR reactor boasts the benefits of short process, low maintenance, and low carbon footprint, introducing a concept for the next generation of wastewater treatment.

Development of an implantable sensor system for in vivo strain, temperature, and pH monitoring: comparative evaluation of titanium and resorbable magnesium plates

Biodegradable magnesium is a highly desired material for fracture fixation implants because of its good mechanical properties and ability to completely dissolve in the body over time, eliminating the need for a secondary surgery to remove the implant. Despite extensive research on these materials, there remains a dearth of information regarding critical factors that affect implant performance in clinical applications, such as the in vivo pH and mechanical loading conditions. We developed a measurement system with implantable strain, temperature, pH and motion sensors to characterize magnesium and titanium plates, fixating bilateral zygomatic arch osteotomies in three Swiss alpine sheep for eight weeks. pH 1–2 mm above titanium plates was 6.6 ± 0.4, while for magnesium plates it was slightly elevated to 7.4 ± 0.8. Strains on magnesium plates were higher than on titanium plates, possibly due to the lower Young's modulus of magnesium. One magnesium plate experienced excessive loading, which led to plate failure within 31 h. This is, to our knowledge, the first in vivo strain, temperature, and pH data recorded for magnesium implants used for fracture fixation. These results provide insight into magnesium degradation and its influence on the in vivo environment, and may help to improve material and implant design for future clinical applications.

Titanium vs PEO Surface-Modified Magnesium Plate Fixation in a Mandible Bone Healing Model in Sheep.

Titanium plates are the current gold standard for fracture fixation of the mandible. Magnesium alloys such as WE43 are suitable biodegradable alternatives due to their high biocompatibility and elasticity modulus close to those of cortical bone. By surface modification, the reagibility of magnesium and thus hydrogen gas accumulation per time are further reduced, bringing plate fixation with magnesium closer to clinical application. This study aimed to compare bone healing in a monocortical mandibular fracture model in sheep with a human-standard size, magnesium-based, plasma electrolytic-oxidation (PEO) surface modified miniplate fixation system following 4 and 12 weeks. Bone healing was analyzed using micro-computed tomography and histological analysis with Movat's pentachrome and Giemsa staining. For evaluation of the tissue's osteogenic activity, polychrome fluorescent labeling was performed, and vascularization was analyzed using immunohistochemical staining for alpha-smooth muscle actin. Bone density and bone mineralization did not differ significantly between titanium and magnesium (BV/TV: T1: 8.74 ± 2.30%, M1: 6.83 ± 2.89%, p = 0.589 and T2: 71.99 ± 3.13%, M2: 68.58 ± 3.74%, p = 0.394; MinB: T1: 26.16 ± 9.21%, M1: 22.15 ± 7.99%, p = 0.818 and T2: 77.56 ± 3.61%, M2: 79.06 ± 4.46%, p = 0.699). After 12 weeks, minor differences were observed regarding bone microstructure, osteogenic activity, and vascularization. There was significance with regard to bone microstructure (TrTh: T2: 0.08 ± 0.01 mm, M2: 0.06 ± 0.01 mm; p = 0.041). Nevertheless, these differences did not interfere with bone healing. In this study, adequate bone healing was observed in both groups. Only after 12 weeks were some differences detected with larger trabecular spacing and more vessel density in magnesium vs titanium plates. However, a longer observational time with full resorption of the implants should be targeted in future investigations.

Fabrication of rapid sand filter for water treatment using sand and activated carbon

It is pertinent to provide safe drinking water to the people as quality of water keeps deteriorating. According to World Health Organization (WHO), water and hygiene are the primary drivers of public health. Filtration is a water treatment process used for removal of microorganisms and colloidal matters from raw water, therefore this study aims at comparing the effects of sand and activated carbon when used separately in rapid sand filters for water treatment. Fabrication of two models of the rapid sand filters were carried out with 1.2mm stainless steel plates. One of the filters was loaded with gravel (grain size 5mm) at the bottom and this was followed by coarse sand (grain size 3mm) and fine sand (grain size 1mm) at the top. The second filter was loaded with gravel at the bottom and this was followed by coarse sand, fine sand and capped with activated carbon. Raw water, obtained from borehole was stored in a tank and made to pass through each of these filters independently. Sample of the raw water was collected for laboratory analysis in addition to samples of the treated water from each of the two rapid sand filters. The outcomes of the tests reveal that the filtration processes had positive impact on the raw water but the filter capped with activated carbon produced better quality water. The use of activated carbon as the topmost material in a rapid sand filter is recommended as it enhances the quality of treated water in parameters such as colour, conductivity, chloride, hardness, sulphate, total dissolved solids, sodium, magnesium, iron and total plate count. The rapid sand filters would afterwards be used for students’ practical to explain filtration as a water treatment process.

Multifunctional Ni/PDMS-coated magnesium plates with highly efficient anti-electromagnetic interference design

Multifunctional Ni/PDMS-coated magnesium plates with highly efficient anti-electromagnetic interference design

Multifunctional Ni/PDMS-coated Magnesium Plates with Highly Efficient Anti-Electromagnetic Interference Design

Multifunctional Ni/PDMS-coated Magnesium Plates with Highly Efficient Anti-Electromagnetic Interference Design

Biomechanical evaluation of CAD/CAM magnesium miniplates as a fixation strategy for the treatment of segmental mandibular reconstruction with a fibula free flap

Titanium patient-specific (CAD/CAM) plates are frequently used in mandibular reconstruction. However, titanium is a very stiff, non-degradable material which also induces artifacts in the imaging. Although magnesium has been proposed as a potential material alternative, the biomechanical conditions in the reconstructed mandible under magnesium CAD/CAM plate fixation are unknown. This study aimed to evaluate the primary fixation stability and potential of magnesium CAD/CAM miniplates. The biomechanical environment in a one segmental mandibular reconstruction with fibula free flap induced by a combination of a short posterior titanium CAD/CAM reconstruction plate and two anterior CAD/CAM miniplates of titanium and/or magnesium was evaluated, using computer modeling approaches. Output parameters were the strains in the healing regions and the stresses in the plates. Mechanical strains increased locally under magnesium fixation. Two plate-protective constellations for magnesium plates were identified: (1) pairing one magnesium miniplate with a parallel titanium miniplate and (2) pairing anterior magnesium miniplates with a posterior titanium reconstruction plate. Due to their degradability and reduced stiffness in comparison to titanium, magnesium plates could be beneficial for bone healing. Magnesium miniplates can be paired with titanium plates to ensure a non-occurrence of plate failure.

Comparison study on enhancement of phosphorus recovery from low-strength wastewater treated with different magnesium-based electrochemical constructed wetland

Phosphorus (P) recovery from wastewaters treated with constructed wetlands (CWs) could alleviate the current global P crisis but has not received sufficient attention. In this study, P transformation in different magnesium-based electrochemical CWs, including micro-electrolysis CW (M-CW), primary battery CW (P-CW), and electrolysis CW (E-CW), was thoroughly examined. The results revealed that the P removal efficiency was 53.0%, 75.8%, and 61.9% in the M-CW, E-CW, and P-CW, respectively. P mass balance analysis showed that P electrode deposition was the main reason for the higher P removal in the E-CW and P-CW. Significant differences were found between the E-CW and P-CW, P was distributed primarily on the magnesium plate in the P-CW but was distributed on the carbon plate in the E-CW. The E-CW had excellent P recovery capacity, and struvite was the major P recovery product. More intense magnesium plate corrosion and alkaline environment increased struvite precipitation in the E-CW, with the proportion of 61.6%. The results of functional microbial community analysis revealed that the abundance of electroactive bacteria was positively correlated with the deposition of struvite. This study provided an essential reference for the targeted electrochemical regulation of electric field processes and microorganisms in CWs to enhance P recovery.

Effect of neutral layer migration on bending force of AZ31B magnesium alloy sheet during bending

In this paper, they are based on the micro-element stress equilibrium condition in the plastic deformation theory and the Yoon-2014 yield criterion, which can reflect the tension and compression asymmetry of AZ31B magnesium alloy, a bending force model is established to predict the required bending force at different angles according to the neutral layer migration in the bending process of magnesium plate. The offset and bending force values of the neutral layer were verified by FEM and corresponding experiments. The results show that the bending force of a magnesium plate is related to the geometrical size of the scale, the yield limit of the material, and the height of the elastic zone of deformation. The model’s prediction accuracy is better than that of the conventional calculation formula, which can realize the reliable prediction of the required bending force of the magnesium plate. In the bending process, the magnesium plate is affected by the asymmetry of tension and pressure, and the neutral layer migrates to the tensile side. The deviation degree of the neutral layer is the most obvious when the magnesium plate is bent to 90°, and the required bending force is the largest.

Newly Developed Resorbable Magnesium Biomaterials for Orbital Floor Reconstruction in Caprine and Ovine Animal Models-A Prototype Design and Proof-of-Principle Study.

orbital floor fractures have not been reconstructed using magnesium biomaterials. To test technical feasibility, ex vivo caprine and ovine heads (n = 5) were used. Head tissues were harvested from pubescent animals (n = 5; mean age: 3.2 years; mean mass: 26.3 kg) and stored below 11 degrees for 7-10 days. All procedures were performed in a university animal resource facility. Two experienced maxillofacial surgeons performed orbital floor procedures in both orbits of all animals in a step-by-step preplanned dissection. A transconjunctival approach was chosen to repair the orbital floor with three different implants (i.e., magnesium implants; titanium mesh; and polydioxanone or PDO sheets). The position of each implant was evaluated by Cone-beam computed tomography (CBCT). Axial, coronal, and sagittal plane images showed good positioning of the magnesium plates. The magnesium plates had a radiographic visibility similar to that of the PDO sheets but lower than that of the titanium mesh. The prototype design study showed a novel indication for magnesium biomaterials. Further testing of this new biomaterial may lead to the first resorbable biomaterial with good mechanical properties for extensive orbital wall defects.

On the strengthening and slip activity of Mg-3Al-1Zn alloy with pre-induced {101¯2} twins

{101¯2} twins were introduced into the magnesium (Mg) plate AZ31 via pre-rolling along its transverse direction. The plates, both with and without the pre-induced {101¯2} twins, were subjected to uniaxial tension along different directions. Using crystal plasticity modeling, we found that the strengthening effect of the pre-induced {101¯2} twins on the macroscopic flow stress primarily arised from the increased slip resistance caused by the boundaries, rather than the orientation hardening due to the twinning reorientation (although the latter did make its contribution in some specific loading directions). Besides, the pre-existing {101¯2} twins were found, by both experiments and simulation, to promote the activity of prismatic 〈a〉 and pyramidal 〈c + a〉 in the parent matrix of the material. Further analysis showed that the enhanced non-basal slip activity is related to the {101¯2} twin boundaries' low micro Hall-Petch slope ratios of non-basal slips to basal slip. With the critical resolved shear stress (CRSS) obtained from crystal plasticity modeling and the orientation data from EBSD, a probability-based slip transfer model was proposed. The model predicts higher slip transfer probabilities and thus lower strain concentration tendencies at {101¯2} twin boundaries than that at grain boundaries, which agrees with the experimental observation that the strain localization was primarily associated with the latter. The present findings are helpful scientifically, in deepening our understanding of how the pre-induced {101¯2} twins affect the strength and slip activity of Mg alloys, and technologically, in guiding the design of the pre-strain protocol of Mg alloys.

Effect of FS-SMAT on microstructure and mechanical property of pure magnesium and AZ31 magnesium alloy

ABSTRACTA novel material processing method, friction stir-surface mechanical attrition treatment (FS-SMAT) was conducted on pure magnesium plate and AZ31 magnesium alloy plate. Two types of stir tools, spherical stir tool and plane stir tool, are designed to process FS-SMAT to reduce the heat input compared with the traditional friction stir processing (FSP). Microstructure evolution during FS-SMAT and its effect on mechanical property are investigated. FS-SMAT has different effect on microstructure and mechanical property when using the spherical and plane stir tools. Different heat input and plastic deformation can be produced due to the specific shapes of stir tools. Using a spherical stir tool, the grain size of pure magnesium plate was refined to 1.74 μm. The micro-hardness was improved from 40 HV to 63 HV. In contrast, after FS-SMAT with a plane stir tool, the grain size and micro-hardness of AZ31 magnesium alloy are 0.91 μm and 125 HV, respectively.

Biomechanical Comparison of WE43-Based Magnesium vs. Titanium Miniplates in a Mandible Fracture Model in Sheep.

In fractures of the mandible, osteosynthesis with titanium plates is considered the gold standard. Titanium is an established and reliable material, its main disadvantages being metal artefacts and the need for removal in case of osteosynthesis complications. Magnesium, as a resorbable material with an elastic modulus close to cortical bone, offers a resorbable alternative osteosynthesis material, yet mechanical studies in mandible fracture fixation are still missing. The hypothesis of this study was that magnesium miniplates show no significant difference in the mechanical integrity provided for fracture fixation in mandible fractures under load-sharing indications. In a non-inferiority test, a continuous load was applied to a sheep mandible fracture model with osteosynthesis using either titanium miniplates of 1.0 mm thickness (Ti1.0), magnesium plates of 1.75 mm (Mg1.75), or magnesium plates of 1.5 mm thickness (Mg1.5). No significant difference (p > 0.05) was found in the peak force at failure, stiffness, or force at vertical displacement of 1.0 mm between Mg1.75, Mg1.5, and Ti1.0. This study shows the non-inferiority of WE43 magnesium miniplates compared to the clinical gold standard titanium miniplates.