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Journal articles on the topic 'Titanium plates'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 May 2022

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1

VLASKIN, M. S., A. V. GRIGORENKO, E. I. SHKOLNIKOV, and A. S. ILYUKHIN. "GOLD-PLATED TITANIUM VS CARBON-IMPLANTED TITANIUM AS MATERIAL FOR BIPOLAR PLATES IN PEM FUEL CELLS." Surface Review and Letters 26, no. 08 (September 5, 2019): 1950038. http://dx.doi.org/10.1142/s0218625x19500380.

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Three different types of current-collecting plates for air-hydrogen PEM fuel cell were manufactured and tested: unmodified titanium plates; gold-plated titanium plates and titanium plates treated by carbon ions implantation. It was shown that the applied surface modifications reduce contact resistance between titanium plate and carbon gas diffusion layer. Total ohmic resistance of fuel cell is reduced by 1.8 and 1.4 times in case of gold-plated titanium and carbon-implanted titanium, respectively, in comparison with uncoated titanium. Although gold plating turned out to be more profitable than carbon ion implantation in terms of electrical characteristics, in the last case, the performance enhancement was reached without using precious metals, which at mass production must play more important role. This technology promises to reduce the cost of bipolar plates manufacturing, while maintaining high electrical performance of PEM fuel cells.

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2

Bakhman, N. N., G. P. Kuznetsov, and V. M. Puchkov. "Combustion of titanium plates." Combustion, Explosion, and Shock Waves 36, no. 4 (July 2000): 470–75. http://dx.doi.org/10.1007/bf02699477.

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3

Hung, L.-W., C.-K. Chao, J.-R. Huang, and J. Lin. "Screw head plugs increase the fatigue strength of stainless steel, but not of titanium, locking plates." Bone & Joint Research 7, no. 12 (December 2018): 629–35. http://dx.doi.org/10.1302/2046-3758.712.bjr-2018-0083.r1.

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ObjectivesScrew plugs have been reported to increase the fatigue strength of stainless steel locking plates. The objective of this study was to examine and compare this effect between stainless steel and titanium locking plates.MethodsCustom-designed locking plates with identical structures were fabricated from stainless steel and a titanium alloy. Three types of plates were compared: type I unplugged plates; type II plugged plates with a 4 Nm torque; and type III plugged plates with a 12 Nm torque. The stiffness, yield strength, and fatigue strength of the plates were investigated through a four-point bending test. Failure analyses were performed subsequently.ResultsFor stainless steel, type II and type III plates had significantly higher fatigue strength than type I plates. For titanium, there were no significant differences between the fatigue strengths of the three types of plates. Failure analyses showed local plastic deformations at the threads of screw plugs in type II and type III stainless steel plates but not in titanium plates.ConclusionThe screw plugs could increase the fatigue strength of stainless steel plates but not of titanium plates. Therefore, leaving screw holes open around fracture sites is recommended in titanium plates. Cite this article: L-W. Hung, C-K. Chao, J-R. Huang, J. Lin. Screw head plugs increase the fatigue strength of stainless steel, but not of titanium, locking plates. Bone Joint Res 2018;7:629–635. DOI: 10.1302/2046-3758.712.BJR-2018-0083.R1.

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Shang, Guo Qiang, Li Ping Li, and Xin Nan Wang. "Experimental Study on Welding Process of TC4 Titanium Alloy with Different Welding Wires." Materials Science Forum 1035 (June 22, 2021): 57–62. http://dx.doi.org/10.4028/www.scientific.net/msf.1035.57.

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In present study, the effects of different welding wires on the evolution of microstructure and mechanical properties of TC4 titanium alloy test plates were studied. The results show that the test plates welded by TA20 titanium alloy wire, TC3 titanium alloy wire and TC4 titanium alloy wire are well formed, no defects are found in the cross section of the weld. The microstructures of these test plates are similar, and needle-like martensite exists in the weld area. In comparison, this is little obvious difference in tensile strength among these test plates welded by different welding wires, while the plates welded by TC4 titanium alloy has better elongation, contraction of aera, impact toughness and better balance of strength and toughness.

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Yang, Xiu Dong, Li Zhao Teng, Jian Lu, Qing Rong Wei, Hui Wang, Ji Yong Chen, and Bang Cheng Yang. "Biomimetic Coating on Titanium Metal and Its Excellent Cell Proliferation." Key Engineering Materials 330-332 (February 2007): 613–16. http://dx.doi.org/10.4028/www.scientific.net/kem.330-332.613.

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Biomimetic coating on roughed titanium plates were prepared in this work by a cathode deposition method in calcium phosphate solution electrolyte. The coatings of plate-like apatite crystals were deposited on the titanium plates under a constant potential of 2.0V for 60 min at 37. The coating crystals were identified to be carbonate-containing apatite (bone-like apatite) by X-ray diffraction and scanning electronic microscopy. The cell proliferation and adhesion of L929 cells on the titanium metal plates with biomimetic coating and the titanium plates with roughed-only were tested. The results showed that biomimetic coating on titanium surface can enhance the materials bioactivity. The study indicated that cathode method is potential to prepare biomimetic coating on titanium implants with excellent bioactivity.

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Hudecki, Andrzej, Dorota Łyko-Morawska, Wirginia Likus, Magdalena Skonieczna, Jarosław Markowski, Renata Wilk, Aleksandra Kolano-Burian, Wojciech Maziarz, Jolanta Adamska, and Marek J. Łos. "Composite Nanofibers Containing Multiwall Carbon Nanotubes as Biodegradable Membranes in Reconstructive Medicine." Nanomaterials 9, no. 1 (January 4, 2019): 63. http://dx.doi.org/10.3390/nano9010063.

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We have tested titanium (Ti) plates that are used for bone reconstruction in maxillofacial surgery, in combination with five types of novel long-resorbable biomaterials: (i) PCL0—polycaprolactone without additives, (ii) PCLMWCNT—polycaprolactone with the addition of multiwall carbon nanotubes (MWCNT), (iii) PCLOH—polycaprolactone doped with multiwall carbon nanotubes (MWCNT) containing –OH hydroxyl groups, (iv) PCLCOOH—polycaprolactone with the addition of multiwall carbon nanotubes (MWCNT) containing carboxyl groups, and (v) PCLTI—polycaprolactone with the addition of Ti nanoparticles. The structure and properties of the obtained materials have been examined with the use of Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and/or X-ray powder diffraction (XRD). Titanium BR plates have been covered with: (i) PCL0 fibers (PCL0BR—connection plates), (ii) PCLMWCNT fibers (PCLMWCNTBR—plates), (iii) PCLOH fibers (PCLOHBR—plates), (iv) PCLCOOH (PCLCOOHBR—plates), (v) PCLTI fiber (PCLTIBR—connection plates). Such modified titanium plates were exposed to X-ray doses corresponding to those applied in head and neck tumor treatment. The potential leaching of toxic materials upon the irradiation of such modified titanium plates, and their effect on normal human dermal fibroblasts (NHDF) have been assessed by MTT assay. The presented results show variable biological responses depending on the modifications to titanium plates.

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Niedzielska, Iwona, Natalia Sitek-Ignac, Michał Bąk, and Damian Niedzielski. "Is Allergy to Titanium Bone Fixation Plates a Problem?" Coatings 12, no. 2 (February 7, 2022): 214. http://dx.doi.org/10.3390/coatings12020214.

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Open reduction and internal fixation (ORIF) with titanium fixation plates is the gold standard for maxillofacial fracture treatment. Titanium is considered a fully compatible material. However, reports of allergic reactions to titanium implants do occur. The aim of this work is to answer the question whether titanium devices used in the treatment of fractures in the craniofacial region can cause allergic reactions. The study comprised 50 subjects treated surgically for maxillofacial injuries with the use of titanium composite devices. Allergic tests were performed by the patch method. The control group consisted of 20 healthy people who did not have any titanium elements. There were no skin changes to titanium and its compounds in both the test and control groups. Only one patient had a positive skin test which showed an allergic reaction to silver nitrate. Titanium fixing elements, as well as titanium dental implants, according to our research, do not show allergic skin reactions.

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Khudyk, Anton, and Sergey Grigorov. "Results of using 3-D simulation methods in treatment of midfacial fractures." ScienceRise, no. 2 (April 30, 2021): 54–65. http://dx.doi.org/10.21303/2313-8416.2021.001727.

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The article publishes the results of treatment of 27 patients with fractures of the face middle area, of which 14 used standard titanium mini-plates to reposition the fragments, and 13 – individual 3D simulated titanium mini-plates / grids. Before and after treatment, its effectiveness was assessed by the values of the displacements of bone fragments and the index of the visual-analog scale, which allows determining the functional and cosmetic effect of the surgery. It was found that the use of individual 3D simulated titanium mini-plates / grids allowed obtaining in 85 % of patients displacements not exceeding 3 mm. In 72 % of patients in whom standard titanium mini-plates were used, the displacement after surgery was 3.1–6 mm, which is significantly greater than in the group with individual modeling of structures. On the 7th day after surgery in the first group (treatment with standard mini-plates), the index on the visual-analog scale was 11 (7; 13), which was significantly (p=0.00147) less than before surgery. In the second group (treatment using individual 3D simulated titanium mini-plates / grids) the index on the visual analog scale was 4 (6; 8) points, which was significantly (Z=3.3; p=0.00098) less than before surgery. Comparison of the visual-analog scale of the first and second groups on the 7th day after surgery revealed the presence of significant (U=2.47; p=0.013) differences. The obtained results testify to the greater efficiency of individual 3D modeled titanium mini-plates / grids in comparison with standard titanium mini-plates. The object of the research: fractures of the middle area of the face. Comparison of the visual-analog scale of the first and second groups on the 7th day after surgery revealed the presence of significant (U=2.47; p=0.013) differences. Investigated problem: the comparative evaluation of the effectiveness of the middle area of the face fractures treatment using individual 3D simulated titanium mini-plates / grids and standard titanium mini-plates. The main scientific results: Optimizing the treatment of fractures of the face middle area will help to achieve good cosmetic and functional results. The area of practical use of the research results: Department of Surgical Dentistry and Maxillofacial Surgery. Innovative technological product: The proposed technique using individual 3D-simulated titanium miniplates will help to optimize the treatment of patients with traumatic fractures of the face middle area. Scope of the innovative technological product: Clinical practice.

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Ashok, V., Bharanija Kalidasan Selvi, and N. Gopi Chander. "Denture marker with titanium number plates." Journal of Forensic Radiology and Imaging 5 (June 2016): 47–49. http://dx.doi.org/10.1016/j.jofri.2016.03.001.

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10

Chowdhary, S. "Mandibular osteosynthesis using 3D titanium plates." International Journal of Oral and Maxillofacial Surgery 36, no. 11 (November 2007): 1074. http://dx.doi.org/10.1016/j.ijom.2007.08.420.

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11

IWASAKI, Keiji, Shoji OHKAWA, Iosif D. ROSCA, Motohiro UO, Tsukasa AKASAKA, and Fumio WATARI. "Distortion of Laser Welded Titanium Plates." Dental Materials Journal 23, no. 4 (2004): 593–99. http://dx.doi.org/10.4012/dmj.23.593.

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Opris, Horia, Gabriel Armencea, Avram Manea, Ileana Mitre, Mihaela Baciut, Florin Onișor, Florica Imre-Lucaci, et al. "Titanium Periimplant Tissue Alterations: A Prospective Cohort Plate Retrieval Study." Applied Sciences 11, no. 14 (July 8, 2021): 6315. http://dx.doi.org/10.3390/app11146315.

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Commercially pure titanium and titanium alloys have been extensively used in materials to reconstruct the facial skeleton in different forms and sizes. There is yet to be a consensus on removing (or not) the plates and screws after osteosynthesis. Our study tries to investigate the adjacent tissues of the titanium plates used in jaw surgery using inductively coupled plasma optical emission spectrometry. Twenty samples of soft tissue surrounding the titanium plates were retrieved 1 year after placement (fracture sites or orthognathic surgery) and were investigated using inductively coupled plasma optical emission spectrometry. The study found 1.06 ppm titanium in the adjacent soft tissues. Even if there are no clinical signs of the presence of titanium in the soft tissues, our findings suggest that a plate removal is a feasible option for patients to avoid local complications due to titanium migration.

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13

Wiggins, Anthony, Richard Austerberry, David Morrison, Kwok M. Ho, and Stephen Honeybul. "Cranioplasty With Custom-Made Titanium Plates—14 Years Experience." Neurosurgery 72, no. 2 (November 10, 2012): 248–56. http://dx.doi.org/10.1227/neu.0b013e31827b98f3.

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Abstract BACKGROUND: There is no consensus on which material is best suited for repair of cranial defects. OBJECTIVE: To investigate the outcomes following custom-made titanium cranioplasty. METHODS: The medical records for all patients who had titanium cranioplasty at 2 major neurosurgical centers in Western Australia were retrieved and analyzed for this retrospective cohort study. RESULTS: Altogether, 127 custom-made titanium cranioplasties on 113 patients were included. Two patients had 3 titanium cranioplasties and 10 patients had 2. Infected bone flap (n = 61, 54%), either from previous craniotomy or autologous cranioplasty, and contaminated bone flap (n = 16, 14%) from the initial injury were the main reasons for requiring titanium cranioplasty. Complications attributed to titanium cranioplasty were common (n = 33, 29%), with infection being the most frequent complication (n = 18 patients, 16%). Complications were, on average, associated with an extra 7 days of hospital stay (interquartile range 2–17). The use of titanium as the material for the initial cranioplasty (P = .58), the presence of skull fracture(s) (P > .99) or scalp laceration(s) (P = .32) at the original surgery, and proven local infection before titanium cranioplasty (P = .78) were not significantly associated with an increased risk of infection. Infection was significantly more common after titanium cranioplasty for large defects (hemicraniectomy [39%] and bifrontal craniectomy [28%]) than after cranioplasty for small defects (P = .04). CONCLUSION: Complications after using titanium plate for primary or secondary cranioplasty were common (29%) and associated with an increased length of hospital stay. Infection was a major complication (16%), and this suggested that more vigorous perioperative infection prophylaxis is needed for titanium plate cranioplasty.

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Madaan, Vishwas, Ashvini M. Padhye, and Manjeet Mapara. "Comparative Evaluation of Microroughness created on Titanium Alloy for use in Dental Implants subjected to Two Different Acid Etching Techniques: An in vitro Study." Journal of Contemporary Dentistry 6, no. 1 (2016): 1–8. http://dx.doi.org/10.5005/jp-journals-10031-1134.

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ABSTRACT Aim The aim of this study was to comparatively evaluate the microroughness created on titanium alloy for use in dental implants subjected to two different acid etching techniques. Materials and Methods Commercially available grade 5 pure titanium plates were machine prepared into 26 plates measuring 3 × 1 cm × 5 mm for acid etching with hydrofluoric acid (HF) and dual acid etching technique using sulfuric acid (H2SO4) followed by hydrochloric acid (HCl). Twenty-five plates were divided into four groups based on the duration and sequence of acid etching. Upon completion of the acid etching procedure, the titanium plates were assessed for their surface characteristics by a surface profilometer. The average roughness parameters values Ra, Rq, Rz obtained for each titanium plate were compared against each other and with unetched titanium plate. Results The average roughness value Ra obtained was 0.480 μm for untreated surface and 3.65 μm maximum for the titanium plate etched for 72 hours in H2SO4 and 48 hours in HCl, which is about seven times the value of surface roughness on the unetched plates. The roughness values obtained after acid etching with HF for any duration were nonsignificant compared with the unetched plates. Conclusion The dual acid etching technique seems to be a simple method to develop a titanium implant surface, though evaluation of the biological response to this surface is necessary. Clinical significance The present study showed that by optimizing the parameters of acid etching, a rough titanium surface can be obtained similar to the various implant surfaces available commercially. How to cite this article Madaan VU, Mapara M, Padhye AM. Comparative Evaluation of Microroughness created on Titanium Alloy for use in Dental Implants subjected to Two Different Acid Etching Techniques: An in vitro Study. J Contemp Dent 2016;6(1):1-8.

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Yamamoto, H., Y. Shibata, and T. Miyazaki. "Anode Glow Discharge Plasma Treatment of Titanium Plates Facilitates Adsorption of Extracellular Matrix Proteins to the Plates." Journal of Dental Research 84, no. 7 (July 2005): 668–71. http://dx.doi.org/10.1177/154405910508400717.

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Glow discharge plasma (GDP) supplied to an anode (GDP+) promotes calcium phosphate adsorption onto titanium better than that supplied to a cathode (GDP-). However, the adsorption of extracellular matrix (ECM) proteins is crucial for cell adhesion to titanium. Since GDP+ induced both inorganic adsorption and cell adhesion, we hypothesized that the inorganic adsorption in a culture medium might affect the adsorption of the ECM proteins. In this study, ECM proteins adsorbed on titanium with and without GDP were examined by x-ray photoelectron spectroscopy. After 1 hr of incubation, increasing sodium adsorption on GDP+ specimens induced adsorption of ECM proteins as shown by NH+ and COO− signals without calcium adsorption. In contrast, since no specific adsorption of sodium on GDP-specimens was detected, GDP-did not contribute to the adsorption of ECM proteins. Thus, promotion of sodium adsorption of GDP+ was effective, at least in the initial ECM protein adsorption on a titanium surface.

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Morrison, D. A., D. T. Guy, R. E. Day, and G. Y. F. Lee. "Simultaneous repair of two large cranial defects using rapid prototyping and custom computer-designed titanium plates: a case report." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 225, no. 11 (September 19, 2011): 1108–12. http://dx.doi.org/10.1177/0954411911422766.

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Custom titanium cranioplasty plates, manufactured by a variety of techniques, have been used to repair a range of cranial defects. The authors present a case where two relatively large, adjacent cranial defects were repaired by custom computer-designed titanium plates. The two plates were designed and fabricated simultaneously using a unique methodology. A 28-year-old woman underwent a corpus callosotomy for medically intractable epilepsy. The surgery was complicated by unexpected haemorrhage which necessitated a second craniotomy. Subsequent deep infection required the removal of bilateral bone flaps, presenting a challenge in the reconstruction of extensive, bilateral but asymmetrical cranial defects. The patient underwent a head computed tomography scan, from which a rapid-prototype model of the skull was produced. The surfaces for the missing cranial segments were generated virtually using a combination of software products and two titanium plates that followed these virtual contours were manufactured to cover the defects. The cranioplasty procedure to implant both titanium cranial plates was performed efficiently with no intra-operative complications. Intra-operatively, an excellent fit was achieved. The careful planning of the plates enhanced the relative ease with which the cranial defects were repaired with an excellent cosmetic outcome.

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Zhang, Zhaoxiong, Yuanchun Li, Ting Zhang, Xiaoyang Yang, Kaihu Fan, Daohan Wang, Shuliang Li, Yahui Hu, and Weihua Fu. "Titanium implants modified by laser microtexturing enhance the bioactivity of gastric epithelial cells and fibroblast cells." Journal of Applied Biomaterials & Functional Materials 19 (January 2021): 228080002110649. http://dx.doi.org/10.1177/22808000211064951.

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The clinical application of anastomotic instruments improves the efficiency of the digestive tract surgery. However, the stapler with titanium nails implanted is still controversial in terms of anastomotic complications, and further improvement and optimization are needed. The purpose of this study was to explore the optimal microtextured parameters that could enhance the bioactivity of titanium implants in vitro. Laser microtexturing technology was used to construct the groove-type microstructural surfaces with different parameters, and human gastric mucosal epithelial cells (GES-1 cells) and mouse fibroblasts (3T3 cells) were cultured on the surface of the titanium plates in vitro. The data of cell adhesion, cell proliferation and cell activity were obtained and statistically analyzed. The textured titanium plates meet the expected design. GES-1 and 3T3 cell adhesion were better in the surface of titanium plates in microstructural group than that in the polished group. GES-1 and 3T3 cells also showed higher proliferative activity in the microstructural group compared with the polished group. The laser textured titanium plates have good groove-type microstructure, which increase the surface roughness, change the surface wettability, promote the adhesion, proliferating and orderly growth of GES-1 and 3T3 cells, and show good biological properties.

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Gokce, Anil, Seyhan Babaroglu, Hasan Murat Ergani, and Yucel Akkas. "Multidisciplinary Surgery in Thoracic Wall Reconstruction for Sternal Osteomyelitis." Clinics in Surgery 6, no. 1 (May 1, 2016): 1–3. http://dx.doi.org/10.25107/cis-v6-id3075.

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Abstract Sternal osteomyelitis and dehiscence are a common problem with an incidence rate of 0.5% to 5.0% after major cardiac surgery. However, the management of separation of the sternum in the patient's thorax remains a challenge for cardiac surgeons and thoracic surgeons using the incision. After cardiac surgery, post-op sternal dehiscence and osteomyelitis was developed in the patient. The old steel wires were removed and the sternum was resected due to long-term infection and extensive deformation of the sternum. Pectoralis muscle flaps were partially mobilized and adducted. The large defect was closed using a large prolene patch. Proper sized transversal titanium plates were selected. Due to the sternum bone was severely destroyed by infection, longer transversal titanium plates were chosen to achieve thoracic stability. Healthy tissues were detected on the ribs. A total of 4 titanium plates were placed intermittently. The plates were fixed to the ribs with titanium locking screws. The pectoral muscle flaps adducted to the plates by the plastic surgery team. A total of 3 drains were placed, one in the mediastinum and two between the thoracic wall and muscle structures.

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Sakuma, Takashi, Mitsumori Sakuma, and Yayoi Shirai. "Clinical Evaluation of Pure Titanium Cast Plates." Nihon Hotetsu Shika Gakkai Zasshi 41, no. 4 (1997): 544–51. http://dx.doi.org/10.2186/jjps.41.544.

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SAKAMOTO, Eiichi, Ken ASHIZAWA, Jun SHIMADA, and Yoshiro YAMAMOTO. "Mandibular reconstruction with titanium mandibular reconstruction plates." Japanese Journal of Oral & Maxillofacial Surgery 35, no. 8 (1989): 2149–56. http://dx.doi.org/10.5794/jjoms.35.2149.

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Takizawa, Takashi, Noboru Nakayama, Hisao Haniu, Kaoru Aoki, Masanori Okamoto, Hiroki Nomura, Manabu Tanaka, et al. "Titanium Fiber Plates for Bone Tissue Repair." Advanced Materials 30, no. 4 (December 7, 2017): 1703608. http://dx.doi.org/10.1002/adma.201703608.

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Lieberman, I. H., and J. K. Webb. "Occipito-cervical fusion using posterior titanium plates." European Spine Journal 7, no. 4 (August 27, 1998): 308–12. http://dx.doi.org/10.1007/s005860050080.

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HE, Jianmei, Shigeki SUZUKI, and Ung-il CHUNG. "Developments of 3D free form titanium mesh plates for implantation (Design of mesh structures for titanium mesh plates)." Transactions of the JSME (in Japanese) 80, no. 809 (2014): SMM0003. http://dx.doi.org/10.1299/transjsme.2014smm0003.

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Lee, K. H., C. K. Jin, C. G. Kang, H. Y. Seo, and J. D. Kim. "Fabrication of Titanium Bipolar Plates by Rubber Forming Process and Evaluation Characteristics of TiN coated Titanium Bipolar Plates." Fuel Cells 15, no. 1 (December 16, 2014): 170–77. http://dx.doi.org/10.1002/fuce.201400091.

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Yamada, Shoko Merrit, Katsuya Gorai, and Koichi Gonda. "Pinwheel-Shaped Titanium Plates Should Be Fixed to the Skull Using All Screw Holes to Protect the Plates from Being Bent." Case Reports in Surgery 2019 (August 19, 2019): 1–3. http://dx.doi.org/10.1155/2019/5709285.

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Introduction. In cranioplasty, pinwheel-shaped titanium mini plates are frequently used to cover bone defects produced by burr holes, and it is common to insert screws through only a few of the holes in cranial flap fixation. Presentation of Case. A 69-year-old man who had undergone clipping surgery for subarachnoid hemorrhage 16 years previously visited our clinic because a titanium plate had penetrated his scalp one month after he was hit on the head by a wall cabinet. Imaging studies revealed that part of the titanium plate had bent outwards and penetrated the skin. The plate was surgically removed, a relief skin incision was made 6 cm posterior to the skin defect to suture the defected portion without causing tension, and a skin graft was applied to the relief skin incision portion. Two months after the maneuver, the skin graft had been successfully incorporated without infection. Discussion. Even after the subcutaneous and the cutaneous tissue have completely covered the pinwheel-shaped titanium mini plate, an edge without screw fixation can be easily bent by a hard blow to the overlying scalp. We recommend fixation of pinwheel-shaped titanium plates used in cranioplasty through all screw holes to protect against the plate being bent.

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Bardhoshi, Esat. "Fractures of the Zygomaticomaxillary Complex and Their Treatment: A Case Report." Balkan Journal of Dental Medicine 20, no. 1 (March 1, 2016): 40–43. http://dx.doi.org/10.1515/bjdm-2016-0006.

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SummaryFractures of the zygomaticomaxillary complex are the second most common of all facial fractures. Several fixation methods have been used over the years, including wire osteosynthesis, lag screw fixation, transfacial Kirschner wire fixation, titanium plate and screw fixation, and more recently, resorbable plating system. Internal fixation with titanium plates and screw provides the most rigid fixation and thus greater immobility of the fracture segments. The degree of immobilization created with titanium plates and screws also allows fixation at fewer anatomic points.

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Vallés, M. A., and J. L. Vérez-Fraguela. "Maxillofacial surgery: maxillary osteosynthesis craneomaxillofacial CMS-titanium plates." Veterinary and Comparative Orthopaedics and Traumatology 13, no. 03 (2000): 119–22. http://dx.doi.org/10.1055/s-0038-1632645.

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SummaryA maxillary fracture is presented which we classified as Le Fort Type III. Treatment was by the application of two craniomaxillofacial CMS titanium plates placed intrabuccally and paramedially on both sides of the palatal suture.This technique was used as an alternative to the classical treatment using interdental wires or intermaxillary fixation.A clinical case was diagnosed with a craniofacial fracture caused from being bitten by another dog. This was successfully treated using CMS titanium plates. Many methods exist for maxillofacial fixation, from the cyanocrylates to interdental wires, etc. The indications for these plates are similar to other methods of fixation. Due to their small mass they are ideal for use in fragile bones with little soft tissue covering.

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Velich, Norbert, Zsolt Németh, Csongor Suba, and György Szabó. "Removal of Titanium Plates Coated With Anodic Titanium Oxide Ceramic: Retrospective Study." Journal of Craniofacial Surgery 13, no. 5 (September 2002): 636–40. http://dx.doi.org/10.1097/00001665-200209000-00008.

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Lin, Xuezhi, Xingling Xiao, Yimeng Wang, Cheng Gu, Canbin Wang, Jiahui Chen, Han Liu, et al. "Biocompatibility of Bespoke 3D-Printed Titanium Alloy Plates for Treating Acetabular Fractures." BioMed Research International 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/2053486.

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Treatment of acetabular fractures is challenging, not only because of its complicated anatomy but also because of the lack of fitting plates. Personalized titanium alloy plates can be fabricated by selective laser melting (SLM) but the biocompatibility of these three-dimensional printing (3D-printed) plates remains unknown. Plates were manufactured by SLM and their cytocompatibility was assessed by observing the metabolism of L929 fibroblasts incubated with culture medium extracts using a CCK-8 assay and their morphology by light microscopy. Allergenicity was tested using a guinea pig maximization test. In addition, acute systemic toxicity of the 3D-printed plates was determined by injecting extracts from the implants into the tail veins of mice. Finally, the histocompatibility of the plates was investigated by implanting them into the dorsal muscles of rabbits. The in vitro results suggested that cytocompatibility of the 3D-printed plates was similar to that of conventional plates. The in vivo data also demonstrated histocompatibility that was comparable between the two manufacturing techniques. In conclusion, both in vivo and in vitro experiments suggested favorable biocompatibility of 3D-printed titanium alloy plates, indicating that it is a promising option for treatment of acetabular fractures.

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Jin, Chul Kyu, Min Geun Jeong, and Chung Gil Kang. "Fabrication of titanium bipolar plates by rubber forming and performance of single cell using TiN-coated titanium bipolar plates." International Journal of Hydrogen Energy 39, no. 36 (December 2014): 21480–88. http://dx.doi.org/10.1016/j.ijhydene.2014.03.013.

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Orakzai, Gulmina Saeed, Eruj Shuja, Kausar Niazi, Zarah Afreen, Ammarah Afreen, and Omer Siddiqui. "Causes of Removal of metallic hardware employed in oral and maxillofacial surgery - A cross sectional survey." Professional Medical Journal 28, no. 10 (September 30, 2021): 1508–12. http://dx.doi.org/10.29309/tpmj/2021.28.10.6393.

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Objective: This study was conducted to evaluate the causes of removal of titanium bone plates used routinely in maxillofacial region. Study Design: Cross Sectional Survey. Setting: Department of Oral & Maxillofacial Surgery, Armed Forces Institute of Dentistry (AFID). Period: January 2016 to June 2018. Material & Methods: A total of 60 patients previously operated in maxillofacial surgery department with open reduction and internal fixation with tru-dynamic titanium plating system in Operation Theater, who reported with complaints due to metallic hardware were included in the study. Data was collected regarding age, gender, time between plate insertion and removal, cause and site of plate removal was also recorded for each patient. Data was analyzed using SPSS 23.0 version. Results: During the study period, 60 patients underwent titanium plate removal out of which 34 were male and 26 were females. Most common cause of plate removal was infection followed by non-union. Majority of plates (43.3%) were removed within 6 to 12 months of insertion. Mandible was found to be the most common site of plate removal (60%). Gender was significantly associated with causes while age was associated with cause, site and duration of removing the metallic plates (P-Value, < 0.05). Conclusion: Removal of symptomatic titanium plates is likely to occur within first year of insertion. Infection was identified as the most common cause for removing the metallic plates.

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Lyons, Karen Swider, and Benjamin D. Gould. "Lightweight Titanium Metal Bipolar Plates for PEM Fuel Cells." Materials Science Forum 879 (November 2016): 613–18. http://dx.doi.org/10.4028/www.scientific.net/msf.879.613.

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Bipolar plates (BPPs) serve multiple roles in polymer electrolyte membrane fuel cells (PEMFCs). When assembled in a stack, they provide the structural backbone of the stack, plus serial electronic connections. They also provide gas (air and fuel) and coolant distribution pathways. Traditionally, bipolar plates have been made of carbon, but these are being replaced in favor of metal bipolar plates made of stamped foils. The Naval Research Laboratory has explored making titanium metal BPPs using 3D printing methods (direct metal laser sintering – DMLS) and superplastic forming, and then using a gold/TiO2 surface layer for corrosion resistance. The 3D printed plates are made as one piece with the coolant flow internal to the resulting 2-mm thick structure. Their surface roughness requires smoothing prior to coating to increase their cell-to-cell conductivity. We found that 3D printed cells with 22 and 66 cm2 active areas are slightly warped, preventing the robust sealing of the stacks. The formed plates are made in separate pieces and then joined. Despite the high temperatures required for superplastic forming, the resulting plates are thin and lightweight, making them highly attractive for lightweight compact PEMFC stacks.

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Emurlaeva, Yulia Yu, Natalie S. Aleksandrova, and Kemal I. Emurlaev. "Structural Transformations at the Interface of Explosively Welded Al and Ti: Experimental Research and Numerical Simulation." Key Engineering Materials 910 (February 15, 2022): 1056–62. http://dx.doi.org/10.4028/p-205qdj.

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In this work, the features of plastic deformation of titanium and aluminum plates under high-speed impact conditions were studied. The structure and phase composition of the explosively welded bimetal were analyzed using both scanning and transmission electron microscopy. The deformation and heating of titanium and aluminum under high-velocity impact were simulated using the smoothed particle hydrodynamics method. The features of shockwave and deformation-thermal processes during the collision of plates were described. The phase composition of the weld and heat-affected zone have been studied. The contribution of the welded plates to the jet formation is estimated.

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Budacu, Cristian, Alexandru Nemtoi, Mihai Constantin, Marius Cristian Martu, and Danisia Haba. "Biomaterials used in Reduction and Fixation of Unstable Fractures of the Zygomaticomaxillary Complex." Materiale Plastice 54, no. 4 (December 30, 2017): 773–76. http://dx.doi.org/10.37358/mp.17.4.4943.

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This study evaluated a series of cases of fracture in the zygomaticomaxillary complex with displacement of the fractured segment which were evaluated before and after treatment with cone beam CT. The treatment perfomed was represented by titanium micro-plates and screws. The study sample which consist of 25 patients of both genders with fractures in the zygomaticomaxillary bones. After clinical examination to arrive at correct diagnosis and treatment plan, each patient was subjected to 2D and 3D reconstruction using cone beam CT. Reffering to the type of treatment was evaluated the procces of bone remodelling and also the osseointegration process of the titanium micro-plates and screws used for reduction and fixation of the fractures. The treatment performed for all patients was reduction and fixation with titanium micro-plates which were osseointegrated partially in 45 % of patients and 3 screws were not osseointegrated.

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Tugirumubano, Alexandre, Kyoung Soo Kim, Hee Jae Shin, Chang Hyeon Kim, Lee Ku Kwac, and Hong Gun Kim. "The Design and Performance Study of Polymer Electrolyte Membrane Using 3-D Mesh." Key Engineering Materials 737 (June 2017): 393–97. http://dx.doi.org/10.4028/www.scientific.net/kem.737.393.

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The production of hydrogen and oxygen using the water electrolysis technology is mostly influenced by the performance and efficiency of the components that are used in the production systems. In this study, the flow field’s channels of the bipolar plates of polymer electrolyte membrane electrolyzer were replaced by 3-D titanium mesh, and the polymer electrolyte membrane (PEM) electrolyzer cell that uses 3-D titanium mesh was designed. A numerical analysis was conducted to study the performance of the designed model. By comparing the results with the electrochemical performance of PEM electrolyzer cell with flow field channels on the plates, it was found that the cell with 3-D titanium mesh has greater performance and higher total power dissipation density. Therefore, the use of 3-D mesh can be used instead of machining the flow field channels on the bipolar plates.

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Chao, Ching-Kong, You-Lin Chen, and Jinn Lin. "Half-threaded holes markedly increase the fatigue life of locking plates without compromising screw stability." Bone & Joint Research 9, no. 10 (October 1, 2020): 645–52. http://dx.doi.org/10.1302/2046-3758.910.bjr-2019-0237.r2.

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Aims To determine whether half-threaded screw holes in a new titanium locking plate design can substantially decrease the notch effects of the threads and increase the plate fatigue life. Methods Three types (I to III) of titanium locking plates were fabricated to simulate plates used in the femur, tibia, and forearm. Two copies of each were fabricated using full- and half-threaded screw holes (called A and B, respectively). The mechanical strengths of the plates were evaluated according to the American Society for Testing and Materials (ASTM) F382-14, and the screw stability was assessed by measuring the screw removal torque and bending strength. Results The B plates had fatigue lives 11- to 16-times higher than those of the A plates. Before cyclic loading, the screw removal torques were all higher than the insertion torques. However, after cyclic loading, the removal torques were similar to or slightly lower than the insertion torques (0% to 17.3%), although those of the B plates were higher than those of the A plates for all except the type III plates (101%, 109.8%, and 93.8% for types I, II, and III, respectively). The bending strengths of the screws were not significantly different between the A and B plates for any of the types. Conclusion Removing half of the threads from the screw holes markedly increased the fatigue life of the locking plates while preserving the tightness of the screw heads and the bending strength of the locking screws. However, future work is necessary to determine the relationship between the notch sensitivity properties and titanium plate design. Cite this article: Bone Joint Res 2020;9(10):645–652.

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Faddeev, Nikita, Victor Klushin, and Nina Smirnova. "Bio-Based Anti-Corrosion Polymer Coating for Fuel Cells Bipolar Plates." Key Engineering Materials 869 (October 2020): 413–18. http://dx.doi.org/10.4028/www.scientific.net/kem.869.413.

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A highly corrosion resistant and conductive polymer coating for polymer electrolyte membrane fuel cells bipolar plates have been successfully prepared from renewable plant biomass sources. The coating is based on the 5-hydroxymethylfurfural synthesis by-product resin that consists of complex furanic oligomers and polymers. The corrosion resistance and conductivity of coated titanium plates have been studied. As-prepared coated Ti samples are shown 0.083 μA/cm2 and 0.32 μA/cm2 corrosion current in the simulated PEMFCs cathode and anode environment respectively. In addition, the polymer coating are reduced the interfacial contact resistance of bare titanium up to 40 %. The Ti plates coated with by-products of 5-HMF synthesis are shown a great potential application as bipolar plates for PEMFCs.

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ITO, Seishiro, Jun KURAKI, Hiroaki TADA, and Mitsunobu IWASAKI. "Preparation of Anodized Titanium Plates with Photocatalytic Activity." Journal of the Surface Finishing Society of Japan 50, no. 12 (1999): 1171–72. http://dx.doi.org/10.4139/sfj.50.1171.

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Reich, R. "Can steel screws be combined with titanium plates?" International Journal of Oral and Maxillofacial Surgery 21, no. 3 (June 1992): 188. http://dx.doi.org/10.1016/s0901-5027(05)80800-8.

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Bhadkamkar, Mohin, William McCaleb Weathers, and Larry H. Hollier. "Review of “Cranioplasty With Custom-Made Titanium Plates." Journal of Craniofacial Surgery 24, no. 4 (July 2013): 1492–93. http://dx.doi.org/10.1097/scs.0b013e3182902c7b.

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YALDIZ, CAN, TOLGA TOLUNAY, ARSLAN KAĞAN ARSLAN, ONUR YAMAN, and TEYFIK DEMIR. "CERVICAL SPINOLAMINOPLASTY WITH NEWLY DESIGNED TITANIUM MINI-PLATES." Journal of Mechanics in Medicine and Biology 16, no. 04 (June 2016): 1650050. http://dx.doi.org/10.1142/s0219519416500500.

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One of the complication of cervical laminoplasty is the restenosis of the opened laminae. Weakness of the screws placed on laminae may cause restenosis. Here, we describe a new technic ‘spinolaminoplasty (Turkish Open-door laminoplasty)’ with newly designed titanium mini plate that placed one side to lateral mass, and the other on spinous process to keep the laminae opened. Two different fixation materials were used for axial compression tests. One was Ultra high molecular weight polyethylene block with cervical vertebrae geometry and fresh ovine cervical vertebrae. In the first group, mini plates were fixed on laminae as in the conventional method described by Hirabayashi. In the second group, mini plates were fixed on spinous process to perform spinolaminoplasty with single and double screws. New fixation method with double screw provides 26% higher stiffness than the closest group, namely new fixation on polyethylene block. And new fixation method with double screw was exhibited significantly higher ([Formula: see text]) performance between the Ovine groups. As in the spinolaminoplasty technic fixing the mini plates to spinous process with longer screws instead of laminae, strengthens the system compared to the conventional method. This proves that rigidity of new construction model is more stable than the conventional method. Tight fixed laminae may prevent restenosis. Also applying the screw through spinous process instead of laminae may prevent the possible cord injuries.

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Langford, Richard J., and John W. Frame. "Tissue changes adjacent to titanium plates in patients." Journal of Cranio-Maxillofacial Surgery 30, no. 2 (April 2002): 103–7. http://dx.doi.org/10.1054/jcms.2002.0286.

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Purnell, Chad A., Elbert E. Vaca, and Marco F. Ellis. "Orbital Fracture Reconstruction Using Prebent, Anatomic Titanium Plates." Journal of Craniofacial Surgery 29, no. 5 (July 2018): e515-e517. http://dx.doi.org/10.1097/scs.0000000000004563.

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Madaree, Anil, Nondabula Moyeni, Petrus Andries Jacobus Le Roux, and Trishan Pillay. "Use of Stock Titanium Mesh Plates in Cranioplasty." Journal of Craniofacial Surgery 30, no. 8 (November 2019): 2341–44. http://dx.doi.org/10.1097/scs.0000000000005778.

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Gupta, Raghav, Nimer Adeeb, Christoph J. Griessenauer, Justin M. Moore, Apar S. Patel, Ajith J. Thomas, and Christopher S. Ogilvy. "Removal of symptomatic titanium fixation plates after craniotomy." Acta Neurochirurgica 158, no. 10 (August 12, 2016): 1845–48. http://dx.doi.org/10.1007/s00701-016-2929-7.

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Egorov, I., and A. Fomin. "Study of the welded joint of VT1-0 titanium with 1.3343 steel." Journal of Physics: Conference Series 2086, no. 1 (December 1, 2021): 012178. http://dx.doi.org/10.1088/1742-6596/2086/1/012178.

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Abstract The work describes a method for obtaining a composite structure of small plates. The resulting plates are a layered structure consisting of a substrate (1.3343 steel) and a titanium coating (VT1-0). A method of resistance welding in the open air was applied to form a layered structure. The resulting titanium-steel compound was tensile tested. The maximum force at break of the welded joint varied in the range from 1.05 to 2.17 kN.

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Hassan, Khaled, Ahmed Mohamed, and Hesham Eissa. "Biodegradable Plates Versus Titanium Mini-Plates for Fixation of Metacarpal and Phalangeal Fractures." Egyptian Journal of Plastic and Reconstructive Surgery 43, no. 3 (October 1, 2020): 581–89. http://dx.doi.org/10.21608/ejprs.2020.68224.

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Dennison, David G. "Distal Radius Fractures and Titanium Volar Plates: Should We Take the Plates Out?" Journal of Hand Surgery 35, no. 1 (January 2010): 141–43. http://dx.doi.org/10.1016/j.jhsa.2009.10.029.

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Wang, Wan Shan, Bao Gang Zhang, Hai Feng Zhao, Wei Wang, and Hu Li. "Research on Functional Surface Grinding of Medical Titanium Plate." Advanced Materials Research 565 (September 2012): 165–70. http://dx.doi.org/10.4028/www.scientific.net/amr.565.165.

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Medical titanium plates with smooth surface will be long-standing in body under the condition of free state when it used for bone fixation. To solve this problem, function-surface titanium plates with a certain roughness and shape must be grinded. So ceramic CBN abrasion wheel is used to grind titanium alloy in CNC machining tool and the status of force, heat and vibration in the grinding process will be monitored in the same time. The surface morphology which can meet the growth of tissue could be obtained in a certain technological conditions by observing the grinded surface with super depth of field microscopy devices.

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Larson, Reid A., Anthony N. Palazotto, and Hugh E. Gardenier. "Impact Response of Titanium and Titanium Boride Monolithic and Functionally Graded Composite Plates." AIAA Journal 47, no. 3 (March 2009): 676–91. http://dx.doi.org/10.2514/1.38577.

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