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1

Manea, Avram, Grigore Baciut, Mihaela Baciut, et al. "New Dental Implant with 3D Shock Absorbers and Tooth-Like Mobility—Prototype Development, Finite Element Analysis (FEA), and Mechanical Testing." Materials 12, no. 20 (2019): 3444. http://dx.doi.org/10.3390/ma12203444.

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Background: Once inserted and osseointegrated, dental implants become ankylosed, which makes them immobile with respect to the alveolar bone. The present paper describes the development of a new and original implant design which replicates the 3D physiological mobility of natural teeth. The first phase of the test followed the resistance of the implant to mechanical stress as well as the behavior of the surrounding bone. Modifications to the design were made after the first set of results. In the second stage, mechanical tests in conjunction with finite element analysis were performed to test
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Shadrin, Vladimir, Sergei Plaksin, and Violetta Platunova. "Mechanical properties of silicon breast implants." Russian journal of biomechanics. 28, no. 4 (2024): 164–70. https://doi.org/10.15593/rjbiomech/2024.4.17.

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Breast augmentation with silicone implants is one of the most common aesthetic procedures. Rupture of the implant is the main reason for repeated surgery and for the removal of the implant. The aim of the study is to investigate the changes in toughness and deformability of the shell of breast implants leading to their rupture depending on the conditions of mechanical loading. The methods of continuum mechanics utilized to model the behavior of elastomers are used. Cyclic stretching and cyclic stretching with increasing amplitude were performed on implant shells from different manufactures, an
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On, Sung-Woon, Sang-Min Yi, In-Young Park, Soo-Hwan Byun, and Byoung-Eun Yang. "Fracture and Fatigue of Dental Implants Fixtures and Abutments with a Novel Internal Connection Design: An In Vitro Pilot Study Comparing Three Different Dental Implant Systems." Journal of Functional Biomaterials 13, no. 4 (2022): 239. http://dx.doi.org/10.3390/jfb13040239.

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The aim of this study was to compare the mechanical behaviors of three dental implant fixtures with different abutment connection designs. Three implant systems were studied: the control (BLX implant), test group 1 (TORX++ implant), and test group 2 (IU implant). Three samples from each group were subjected to static compression to fracture tests to determine the maximum fracture load, and twelve samples were exposed to fatigue tests that measured how many cycles the implants could endure before deformation or fracture. Detailed images of the implant–abutment assemblies were obtained using mic
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Erbel, Carolin, Matthias W. Laschke, Tanja Grobecker-Karl, and Matthias Karl. "Preclinical Performance of a Novel Dental Implant Design Reducing Mechanical Stress in Cortical Bone." Journal of Functional Biomaterials 16, no. 3 (2025): 102. https://doi.org/10.3390/jfb16030102.

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This animal study compared the healing performance of a novel implant design characterized by a shift in thread geometry and core diameter with two different surfaces with that of an apically tapered implant. Test Bioactive (n = 9), Test Porous (n = 7) and Control (n = 8) implants were placed in the mandibles of minipigs. Following healing, bone samples were harvested for determining bone-to-implant contact (BIC) and marginal bone loss (MBL). Comparative statistics were based on Levene’s test, Shapiro–Wilk tests, the Kruskal–Wallis test and Wilcoxon tests with Holm correction (α = 0.05). The m
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Vinhas, Ana Sofia, Filomena Salazar, José Manuel Mendes, et al. "SEM Analysis and Micro-CT Evaluation of Four Dental Implants after Three Different Mechanical Requests—In Vitro Study." Materials 17, no. 2 (2024): 434. http://dx.doi.org/10.3390/ma17020434.

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Statement of problem: Implant-supported rehabilitations are an increasingly frequent practice to replace lost teeth. Before clinical application, all implant components should demonstrate suitable durability in laboratory studies, through fatigue tests. Objective: The purpose of this in vitro study was to evaluate the integrity and wear of implant components using SEM, and to assess the axial displacement of the implant–abutment assembly by Micro-CT, in different implant connections, after three distinct mechanical requests. Materials and methods: Four KLOCKNER implants (external connection SK
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Lopez, Camilo Andres Villabona, Marco Antônio Amorin Vasco, Edwin Ruales, et al. "Three-Dimensional Finite Element Analysis of Stress Distribution in Zirconia and Titanium Dental Implants." Journal of Oral Implantology 44, no. 6 (2018): 409–15. http://dx.doi.org/10.1563/aaid-joi-d-16-00109.

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Zirconia has been presented as an alternative biomaterial to titanium, commercially presented as a single-body implant and/or as an abutment, demonstrating clinically biocompatible favorable results in white and rose esthetics. However, the number of long-term in vivo studies and mechanical tests evaluating the response of stress distribution compared with titanium implants is still limited. The aim of the study was to compare the principal peak stresses in the peri-implant bone around titanium and zirconia implants using the finite element method. Four groups of 3-dimensional models were cons
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Vanaclocha, Vicente, Carlos Atienza, Amparo Vanaclocha, et al. "New Subperiosteal Dental Implant Design with Finite Element Analysis and Mechanical Validation: A Design Validation Study." Materials 18, no. 3 (2025): 622. https://doi.org/10.3390/ma18030622.

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New subperiosteal dental implants were designed to offer new options to edentulous patients with severe bone resorption for whom endosseous dental implants are not advisable. In our study, we aimed to design and manufacture subperiosteal dental implants with a minimum volume to facilitate surgical maneuvers and metal coverage by mucosa while ensuring maximal long-term implant strength and functionality. With cone-beam CT-scan data obtained from an edentulous patient, a maxilla and mandible recreation were created, and subperiosteal implants were designed and analyzed with FEA (250 MPa infinite
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Olawumi, Mattew A., Francis T. Omigbodun, and Bankole I. Oladapo. "Improved Biocompatibility in Laser-Polished Implants." Biomimetics 9, no. 10 (2024): 642. http://dx.doi.org/10.3390/biomimetics9100642.

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This research aims to enhance the surface quality, mechanical properties, and biocompatibility of PEEK (polyether–ether–ketone) biomimetic dental implants through laser polishing. The objective is to improve osseointegration and implant durability by reducing surface roughness, increasing hydrophilicity, and enhancing mechanical strength. The methodology involved fabricating PEEK implants via FDM and applying laser polishing. The significant findings showed a 66.7% reduction in surface roughness, Ra reduced from 2.4 µm to 0.8 µm, and a 25.3% improvement in hydrophilicity, water contact angle d
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Hettich, G., J. B. Weiß, and T. M. Grupp. "PRE-CLINICAL EVALUATION OF CUSTOM-MADE KNEE IMPLANTS USING FINITE ELEMENT ANALYSIS." Orthopaedic Proceedings 105-B, SUPP_8 (2023): 120. http://dx.doi.org/10.1302/1358-992x.2023.8.120.

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In severe cases of total knee arthroplasty which cannot be treated with off-the-shelf implants anymore custom-made knee implants may serve as one of the few remaining options to restore joint function or to prevent limb amputation. Custom-made implants are specifically designed and manufactured for one individual patient in a single-unit production, in which the surgeon is responsible for the implant design characteristics in consultation with the corresponding engineer.The mechanical performance of these custom-made implants is challenging to evaluate due to the unique design characteristics
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Junnarkar, Swapnil, Anand Sabane, Amol Patil, et al. "Optimizing orthodontic anchorage: comparative evaluation of larger diameter, shorter length mini-implants for enhanced mechanical stability." Folia Medica 66, no. 6 (2024): 849–62. https://doi.org/10.3897/folmed.66.e130813.

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Aim: We aim to assess and contrast the mechanical stability of two mini-implant designs, featuring larger diameters and shorter lengths, for orthodontic anchorage against a conventional group of implants. Materials and methods: Three groups of mini-implant underwent testing: the implants in Group 1 were 2.5 mm in diameter and 4 mm in length; the implants in Group 2 were 3 mm in diameter and 3 mm in length; and the conventional group implants were 1.3 mm in diameter and 7 mm in length. Both types were Abso Anchor mini-implants (Dentos Inc.). The implants’ mechanical stability was assessed using
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Lopes, Patricia A., Adriana F. P. Carreiro, Rubens M. Nascimento, Brendan R. Vahey, Bruno Henriques, and Júlio C. M. Souza. "Physicochemical and microscopic characterization of implant-abutment joints." European Journal of Dentistry 12, no. 01 (2018): 100–104. http://dx.doi.org/10.4103/ejd.ejd_3_17.

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ABSTRACTObjective: The purpose of this study was to investigate Morse taper implant-abutment joints by chemical, mechanical, and microscopic analysis.Materials and Methods: Surfaces of 10 Morse taper implants and the correlated abutments were inspected by field emission gun-scanning electron microscopy (FEG-SEM) before connection. The implant-abutment connections were tightened at 32 Ncm. For microgap evaluation by FEG-SEM, the systems were embedded in epoxy resin and cross-sectioned at a perpendicular plane of the implant-abutment joint. Furthermore, nanoindentation tests and chemical analysi
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Castro, Connor, Zachary R. Brown, and Erik Brewer. "Self-healing properties of augmented injectable hydrogels over time." AIMS Materials Science 10, no. 2 (2023): 301–12. http://dx.doi.org/10.3934/matersci.2023016.

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<abstract> <p>Injectable polymers offer great benefits compared to other types of implants; however, they tend to suffer from increased mechanical wear and may need a replacement implant to restore these mechanical properties. The purpose of this experiment is to investigate an injectable hydrogel's self-healing ability to augment itself to a previously molded implant. This was accomplished by performing a tensile strength test to examine potential diminishing mechanical properties with increasing time, as well as dye penetration tests to examine the formation of interfacial bonds
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Körtvélyessy, Győző, Dávid Botond Hangyási, Tamás Tarjányi, et al. "Static and dynamic compression load tests of conically connected, screw fixed dental abutment." Analecta Technica Szegedinensia 17, no. 3 (2023): 1–12. http://dx.doi.org/10.14232/analecta.2023.3.1-12.

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The basis of the long-term success of dental implants is the mechanical stability of the implant and the superstructure anchored in it. In order to investigate the mechanical behaviour of the conical connection in implant-abutment units, static and dynamic load tests were performed with different conical angles and various Grade 4-5 titanium implant materials. The assembled units were mounted in self-developed loading machine and in an Instron ElectroPuls E3000 fatigue machine. For static loading, the samples were loaded with a force from 0 N to 500 N in steps of 100 N. For dynamic loading, th
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Karalkin, P. A., K. G. Kudrin, D. S. Svyatoslavov, D. A. Usatov, and I. V. Reshetov. "Development and Preclinical Trials of Castomized Porous Titanium Implants with Bioactive Coatings in Model Systems." Journal Biomed 19, no. 3E (2023): 104–9. http://dx.doi.org/10.33647/2713-0428-19-3e-104-109.

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This paper presents a technology for creating customized porous titanium implants with bioactive coatings, manufactured using additive technologies. The stages of creating an implant include obtaining primary data from the bone defect area using computed tomography; 3D modeling of the defect area and the corresponding implant; production of a customized implant from titanium alloys using selective laser fusion technology; application of bioactive coatings. The as-created customized implant can have several functional structures. Samples of titanium implants with bioactive coatings were subject
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Alemayehu, Dawit Bogale, Masahiro Todoh, and Song-Jeng Huang. "Nonlinear Finite Element Analysis of Bone–Implant Contact in Three Short Dental Implant Models with Varying Osseointegration Percentages." Oral 4, no. 4 (2024): 505–24. http://dx.doi.org/10.3390/oral4040040.

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Objectives: Dental implants have become a cornerstone of restorative dentistry, providing a long-lasting method for tooth replacement. The degree of osseointegration has a significant effect on biomechanical stability at the bone–implant contact (BIC), determining the continued efficacy of these implants. However, the exact consequences of changing osseointegration levels on different implant designs, especially in bones with variable densities, are not well known. Methods: This study used 3D finite element analysis (FEA) to look at the biomechanical performance of three short dental implants:
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Cicciù, Cervino, Terranova, et al. "Prosthetic and Mechanical Parameters of the Facial Bone under the Load of Different Dental Implant Shapes: A Parametric Study." Prosthesis 1, no. 1 (2019): 41–53. http://dx.doi.org/10.3390/prosthesis1010006.

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In recent years the science of dental materials and implantology have taken many steps forward. In particular, it has tended to optimize the implant design, the implant surface, or the connection between implant and abutment. All these features have been improved or modified to obtain a better response from the body, better biomechanics, increased bone implant contact surface, and better immunological response. The purpose of this article, carried out by a multidisciplinary team, is to evaluate and understand, through the use also of bioengineering tests, the biomechanical aspects, and those i
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Fonseca, Darcio, Beatriz de Tapia, Ramon Pons, et al. "The Effect of Implantoplasty on the Fatigue Behavior and Corrosion Resistance in Titanium Dental Implants." Materials 17, no. 12 (2024): 2944. http://dx.doi.org/10.3390/ma17122944.

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Implantoplasty is a technique increasingly used to remove the biofilm that causes peri-implantitis on dental implants. This technique of mechanization of the titanium surface makes it possible to eliminate bacterial colonies, but it can generate variations in the properties of the implant. These variations, especially those in fatigue resistance and electrochemical corrosion behavior, have not been studied much. In this work, fatigue tests were performed on 60 dental implants without implantoplasty, namely 30 in air and 30 in Hank’s solution at 37 °C, and 60 with implatoplasty, namely 30 in ai
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Řehounek, Luboš, Aleš Jíra, Gabriela Javorská, and Daniel Bodlák. "NUMERICAL COMPARISON OF TRANSGINGIVAL AND SUBGINGIVAL DENTAL IMPLANTS IN REGARD TO THEIR STRESS DISTRIBUTIONS." Acta Polytechnica CTU Proceedings 30 (April 22, 2021): 81–86. http://dx.doi.org/10.14311/app.2021.30.0081.

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Most modern dental implants differentiate in regard to the fixation of the abutment into two main categories - the external or internal hexagon or octagon. We performed mechanical tests according to the ČSN EN ISO 14801 standard on a dental implant variant using the external hex. We found that failure of all implant specimens occured below the screw head. To improve the current geometry, we performed numerical analysis of an alternative variant (internal hex) and compared it with analysis of the current geometry (external hex). It was found that the stress distribution of the variant with inte
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Frayne, Ryan J., Marvin Schwartz, and James P. Dickey. "A Mastication Mechanism Designed for Testing Temporomandibular Joint Implants." Applied Bionics and Biomechanics 9, no. 3 (2012): 241–47. http://dx.doi.org/10.1155/2012/324034.

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The development of temporomandibular joint implants has involved simplified mechanical tests that apply pure vertical forces or pure rotational movements to the implant. The aim of this study was to develop a biological based mastication mechanism and conduct preliminary testing of a novel temporomandibular joint implant. The mechanism was designed to mimic temporomandibular joint loads by performing compression and anterior/posterior translation. Pilot testing was performed on six implant/joint specimens for seven consecutive hours, completing approximately 22,000 cycles at a frequency of app
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Chang, Jenny Zwei-Chieng, Pei-I. Tsai, Mark Yen-Ping Kuo, Jui-Sheng Sun, San-Yuan Chen, and Hsin-Hsin Shen. "Augmentation of DMLS Biomimetic Dental Implants with Weight-Bearing Strut to Balance of Biologic and Mechanical Demands: From Bench to Animal." Materials 12, no. 1 (2019): 164. http://dx.doi.org/10.3390/ma12010164.

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A mismatch of elastic modulus values could result in undesirable bone resorption around the dental implant. The objective of this study was to optimize direct metal laser sintering (DMLS)-manufactured Ti6Al4V dental implants’ design, minimize elastic mismatch, allow for maximal bone ingrowth, and improve long-term fixation of the implant. In this study, DMLS dental implants with different morphological characteristics were fabricated. Three-point bending, torsional, and stability tests were performed to compare the mechanical properties of different designs. Improvement of the weaker design wa
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V Silva Júnior, Eduardo, Roberta T Basting, Cecilia P Turssi, and Fabiana MG França. "Precision of polyether ether ketone (PEEK) or cobalt-chrome implant bar fit to implants after mechanical cycling." Acta Odontológica Latinoamericana 36, no. 2 (2023): 71–77. http://dx.doi.org/10.54589/aol.36/2/71.

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Based on its mechanical properties, PEEK (polyether-ether-ketone) might be useful in restorative procedures. In oral rehabilitation, its viability has been studied mainly for prostheses and dental implants. Aim: The aim of this study was to evaluate the fit accuracy of dental implant bars made of either PEEK or cobalt-chrome submitted to cycling mechanics. Materials and Method: This was an experimental in vitro study, where units were treated with two implants and mini-abutments, joined by cobalt-chrome or polyether-ether-ketone PEEK bars. A total 20 bars were prepared (n=10 per group) and sub
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Sun, Fei, Li-Tao Lv, Wei Cheng, et al. "Effect of Loading Angles and Implant Lengths on the Static and Fatigue Fractures of Dental Implants." Materials 14, no. 19 (2021): 5542. http://dx.doi.org/10.3390/ma14195542.

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Mechanical properties play a key role in the failure of dental implants. Dental implants require fatigue life testing before clinical application, but this process takes a lot of time. This study investigated the effect of various loading angles and implant lengths on the static fracture and fatigue life of dental implants. Implants with lengths of 9 mm and 11 mm were prepared. Static fracture tests and dynamic fatigue life tests were performed under three loading angles (30°, 40°, and 50°), and the level arm and bending moment were measured. After that, the fracture morphology and fracture mo
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Siring, Janina, Anil Cökelek, Norman Mohnfeld, Hendrik Wester, and Bernd-Arno Behrens. "Evaluating the Degradation of WE43 for Implant Applications: Optical and Mechanical Insights." Applied Sciences 15, no. 6 (2025): 3300. https://doi.org/10.3390/app15063300.

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In the context of an ageing society, advancements in medicine and biomedical technology are becoming increasingly important. A major goal is to minimise the number of surgical operations. Magnesium alloys are gaining attention due to their degradable properties, good biocompatibility, and osteoconductivity. However, for implants made from this material to be usable, a precise understanding of the degradation rate and a correspondingly adapted design must be available. This work focuses on constructing a suitable experimental chamber for degradation analysis, as well as investigating the impact
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Sridhar, Sathyanarayanan, Zain Abidi, Thomas G. Wilson, et al. "In Vitro Evaluation of the Effects of Multiple Oral Factors on Dental Implants Surfaces." Journal of Oral Implantology 42, no. 3 (2016): 248–57. http://dx.doi.org/10.1563/aaid-joi-d-15-00165.

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Presence of metal ions and debris resulting from corrosion processes of dental implants in vivo can elicit adverse tissue reactions, possibly leading to peri-implant bone loss and eventually implant failure. This study hypothesized that the synergistic effects of bacterial biofilm and micromotion can cause corrosion of dental implants and release of metal ions in vivo. The goal is to simulate the oral environment where an implant will be exposed to a combination of acidic electrochemical environment and mechanical forces. Four conditions were developed to understand the individual and synergis
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Kawamura, Naohiko, Yuya Nakao, Rina Ishikawa, Dai Tsuchida, and Masahiro Iijima. "Degradation and Biocompatibility of AZ31 Magnesium Alloy Implants In Vitro and In Vivo: A Micro-Computed Tomography Study in Rats." Materials 13, no. 2 (2020): 473. http://dx.doi.org/10.3390/ma13020473.

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In current orthodontic practice, miniscrew implants (MSIs) for anchorage and bone fixation plates (BFPs) for surgical orthodontic treatment are commonly used. MSIs and BFPs that are made of bioabsorbable material would avoid the need for removal surgery. We investigated the mechanical, degradation and osseointegration properties and the bone-implant interface strength of the AZ31 bioabsorbable magnesium alloy to assess its suitability for MSIs and BFPs. The mechanical properties of a Ti alloy (TiA), AZ31 Mg alloy (MgA), pure Mg and poly-L-lactic acid (PLA) were investigated using a nanoindenta
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Armentia, Mikel, Mikel Abasolo, Ibai Coria, and Joseba Albizuri. "Fatigue Design of Dental Implant Assemblies: A Nominal Stress Approach." Metals 10, no. 6 (2020): 744. http://dx.doi.org/10.3390/met10060744.

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Fatigue is the most common mechanical failure type in dental implants. ISO 14801 standardizes fatigue testing of dental implants, providing the load-life curve which is most useful for comparing the fatigue behavior of different dental implant designs. Based on it, many works were published in the dental implant literature, comparing different materials, component geometries, connection types, surface treatments, etc. These works are useful for clinicians in order to identify the best options available in the market. The present work is intended not for clinicians but for dental implant manufa
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Schumacher, Lukas, Ikra-Nur Cetin, Sira Bielefeldt, Frank Rupp, and Ariadne Roehler. "Enhanced Experimental Setup and Methodology for the Investigation of Corrosion Fatigue in Metallic Biodegradable Implant Materials." Materials 17, no. 21 (2024): 5146. http://dx.doi.org/10.3390/ma17215146.

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Biodegradable implants as bone fixations may present a safe alternative to traditional permanent implants, reducing the risk of infections, promoting bone healing, and eliminating the need for removal surgeries. Structural integrity is an important consideration when choosing an implant material. As a biodegradable implant is being resorbed, until the natural bone has regrown, the implant material needs to provide mechanical stability. However, the corrosive environment of the human body may affect the fatigue life of the material. Conversely, mechanical stress can have an effect on electroche
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Cho, Su-Min, Soo-Hwan Byun, So-Yee Ahn, et al. "Biomechanical Evaluation of a Novel Non-Engaging Abutment and Screw in Internal Implant Systems: Comparative Fatigue and Load Testing." Journal of Functional Biomaterials 16, no. 3 (2025): 107. https://doi.org/10.3390/jfb16030107.

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Dental implants rely on precise prosthetic design and biomechanical stability to ensure long-term success. This study evaluates the mechanical performance of non-engaging abutments in multi-unit combined screw- and cement-retained prostheses (CSCRP) using two internal implant systems: the BlueDiamond (BD) and AnyOne (AO) systems. Unlike conventional implant systems that utilize the same type of screw for both engaging and non-engaging abutments, the BD system employs a distinct screw design for non-engaging abutments. A total of 80 implants were tested, with 40 in each group. Mechanical testin
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Fedorová, Lucia, Irenej Poláček, Radovan Hudák, Mária Mihaliková, and Jozef Živčák. "A Comparison of Mechanical Properties of Lumbar Bilateral Implants Manufactured by Additive and Conventional Technologies." Key Engineering Materials 635 (December 2014): 139–42. http://dx.doi.org/10.4028/www.scientific.net/kem.635.139.

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Spinal implants are mechanical equipments that facilitate fusion, correct deformities, and stabilize and strengthen the spine. To make an implant efficient, it has to endure without any failure, especially mechanical damage, stand all the static and dynamic loads incurred in spine during everyday activities, and maintain the necessary position of motive segments during the bone adhesion. [1] Human spine is exposed to the highest load in the lumbar section [2]; therefore, lumbar bilateral implants require higher attention in terms of mechanical parameters verification. The main objective of thi
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Řehounek, Luboš, and Aleš Jíra. "NUMERICAL AND MECHANICAL ANALYSES OF A 3D-PRINTED TITANIUM TRABECULAR DENTAL IMPLANT." Acta Polytechnica 57, no. 3 (2017): 218–28. http://dx.doi.org/10.14311/ap.2017.57.0218.

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The main focus of this paper is to investigate and describe a novel biomaterial structure. The trabecular structure has only recently been recognized as a viable alternative for prostheses and implants and seems to have very promising biocompatibility and mechanical properties. The 3D printing technique was used to create test specimens. These specimens were then tested by nanoindentation and tensile and compression tests. A numerical model was created and curve-fitted to represent the mechanical behavior of the trabecular structure. A significant reduction in the values of Young’s modulus &lt
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Taratuta, Anna, Julia Lisoń, Alicja Kazik-Kęsik, Magdalena Antonowicz, and Marcin Basiaga. "STUDY OF THE MECHANICAL AND ANTIBACTERIALPROPERTIES OF SURFACE MODIFIED STEEL FOR MEDICALAPPLICATIONS." Tribologia 304, no. 2 (2023): 85–95. http://dx.doi.org/10.5604/01.3001.0053.6128.

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Various types of metal implants, both in Poland and worldwide, are mainly manufactured from stainlesssteel due to their biocompatibility, strength, and relatively low price. However, any such procedure involvesthe risk of peri-implant infection, stimulated, among other things, by the formation of a bacterial biofilmon the surface of the implant. In this paper, several methods of modifying the surface of steel for medicalapplications were proposed, such as mechanical polishing, electropolishing, sandblasting, and the applicationof a thin surface layer. This was followed by a series of physicoch
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Valente, Mariana Lima da Costa, Cesar Penazzo Lepri, and Andréa Candido dos Reis. "In Vitro Microstructural Analysis of Dental Implants Subjected to Insertion Torque and Pullout Test." Brazilian Dental Journal 25, no. 4 (2014): 343–45. http://dx.doi.org/10.1590/0103-6440201302402.

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The change in the implant microstructure during handling may reduce the potential of surface treatment on the osteoinduction and, therefore, on the osseointegration. The aim of this study was to evaluate by energy-dispersive X-ray spectroscopy (EDX) the effect of insertion torque and pullout test on the microstructure of dental implants with different shapes. Four shapes of implants (n=8) were selected: conical with surface treatment (COTS), cylindrical with surface treatment (CTS), cylindrical with double surface treatment (CTSD) and cylindrical with machined surface (CSU). Before and after p
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Schulz, Annika, Virgilia Klär, Tanja Grobecker-Karl, and Matthias Karl. "Biomechanical Rationale for a Novel Implant Design Reducing Stress on Buccal Bone." Applied Sciences 13, no. 1 (2023): 666. http://dx.doi.org/10.3390/app13010666.

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Modern implant designs should allow for adequate primary stability but limit mechanical stress on buccal bone in order to prevent initial marginal bone loss. A dental implant characterized by a shift in core diameter and thread geometry was evaluated. Polyurethane foam was used as bone surrogate material and implant placement was performed measuring insertion torque and strain development on buccal bone using strain gauges as well as primary stability by using damping capacity assessments. An existing tapered bone-level implant was used as a control while the novel experimental implant describ
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Mehta, Sahil, Gurmohan Singh, Harvinder Singh, and Abhineet Saini. "A Review of Tribological Behavior of Different Bio-Implant Materials." ECS Transactions 107, no. 1 (2022): 5147–53. http://dx.doi.org/10.1149/10701.5147ecst.

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Biomedical implants are extensively gaining popularity owing to ever increasing health complications and growth in trauma numbers globally. Metallic implants are the most widely used bio-implants for various orthopedics and dentistry related problems owing to their superior mechanical strength when compared to ceramics and polymers. Furthermore, titanium alloys are the preferred choice these days, because of their proximate nature to human bone and light weight. However, few shortcomings make these artificial bio-implants capricious like short life span, wear rate, surface finish, etc. Tribolo
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35

Martí-Vigil, Jordi, Joan Casamitjana, Xavier Marimon, et al. "Impact Testing in Implant-Supported Prostheses and Natural Teeth: A Systematic Review of Properties and Performance." Materials 17, no. 16 (2024): 4040. http://dx.doi.org/10.3390/ma17164040.

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Dental implants offer an effective solution for partial and total edentulism, but mechanical and biological complications exist. Furthermore, high occlusal loads challenge implants and lead to potential failures. This review focuses on impact testing in contrast to incremental and static tests, an underexplored aspect of assessing daily loads on implants, bringing to light potential complications. The review examines studies employing impact forces to assess implant-supported prostheses and natural teeth properties, highlighting their significance in dental research. A systematic search follow
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Kazarinov, Nikita, Andrey Stotskiy, Alexander Polyakov, Ruslan Z. Valiev, and Nariman Enikeev. "Finite Element Modeling for Virtual Design to Miniaturize Medical Implants Manufactured of Nanostructured Titanium with Enhanced Mechanical Performance." Materials 15, no. 21 (2022): 7417. http://dx.doi.org/10.3390/ma15217417.

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The study is aimed to virtually miniaturize medical implants produced of the biocompatible Ti with improved mechanical performance. The results on the simulation-driven design of medical implants fabricated of nanostructured commercially pure Ti with significantly enhanced mechanical properties are presented. The microstructure of initially coarse-grained Ti has been refined to ultrafine grain size by severe plastic deformation. The ultrafine-grained (UFG) Ti exhibits remarkably high static and cyclic strength, allowing to design new dental and surgical implants with miniaturized geometry. The
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Matos, Jefferson David Melo de, Guilherme da Rocha Scalzer Lopes, Daher Antonio Queiroz, et al. "Influence of the Peek Abutments on Mechanical Behavior of the Internal Connections Single Implant." Materials 15, no. 22 (2022): 8133. http://dx.doi.org/10.3390/ma15228133.

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The present study aimed to evaluate the biomechanical behavior of PEEK abutments with different heights on single titanium implants. To investigate the implant surface, different tests (scanning electron microscopy, energy-dispersive X-ray, and X-ray diffraction) were adopted. Herein, 20 implants received the 4.5 × 4.0 mm PEEK short abutment (SA) and 20 received the 4.5 × 5.5 mm PEEK long abutment (LA). The abutments were installed using dual-cure resin cement. To determine the fatigue test, two specimens from each group were submitted to the single load fracture test. For this, the samples we
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Zhang, Xiao, Jin Yang Zhang, Jian Yu Chen, and Xian Shuai Chen. "Numerical and Experimental Analysis of Segmented Porous Implant Fabricated by 3D Printing and CNC Composite Machining Technology." Applied Mechanics and Materials 909 (September 28, 2022): 45–53. http://dx.doi.org/10.4028/p-1d4650.

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The purpose of this study was to design porous implants with particular structure and evaluate their biomechanical behavior. Thus, a segmented porous dental implant (SPDI) was designed and manufactured by 3D Printing and computer numerical control (CNC) composite machining technology. The FE analysis was used to investigate its static mechanical property. Fatigue test was performed to verify its fatigue life. Resonance frequency analysis and pull-out tests were carried out to study its primary stability. Results indicated that better stress distribution was observed for SPDI. Fatigue test show
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Velasco, Eugenio, Loreto Monsalve-Guil, Alvaro Jimenez, et al. "Importance of the Roughness and Residual Stresses of Dental Implants on Fatigue and Osseointegration Behavior. In Vivo Study in Rabbits." Journal of Oral Implantology 42, no. 6 (2016): 469–76. http://dx.doi.org/10.1563/aaid-joi-d-16-00088.

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This study focuses on the fatigue behavior and bone-implant attachment for the more usual surfaces of the different CP-titanium dental implants. The implants studied were: as-received (CTR), acid etching (AE), spark-anodization (SA), and with a grit-blasted surface (GB). Residual stresses were determined by means of X-ray diffraction. The fatigue tests were carried out at 37°C on 160 dental implants, and the stress-failure (S-N) curve was determined. The fatigue tests showed that the grit-blasting process improved fatigue life. This is a consequence of the layer of compressive residual stresse
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Ceddia, Mario, Tea Romasco, Giulia Marchioli, et al. "Finite Element Analysis of Implant Stability Quotient (ISQ) and Bone Stresses for Implant Inclinations of 0°, 15°, and 20°." Materials 18, no. 7 (2025): 1625. https://doi.org/10.3390/ma18071625.

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This study aimed to utilize finite element analysis (FEA) to evaluate the primary stability of Cyroth dental implants (AoN Implants Srl, Grisignano di Zocco, Italy) under various biomechanical conditions, including different implant inclinations (0°, 15°, and 20°) and bone densities (D3 and D4). By comparing these results with those obtained from in vitro tests on polyurethane blocks, the study sought to determine whether FEA could provide stability information more quickly and efficiently than in vitro methods. The research involved correlating dental implant micro-mobility with the implant s
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Juryn, Margaret S. "Comparison of the Mechanical and Osseointegrative Performance of Porous Tantalum and Titanium for Acetabular Implantation in Total Hip Arthroplasty: A Literature Review." Undergraduate Research in Natural and Clinical Science and Technology (URNCST) Journal 7, no. 6 (2023): 1–7. http://dx.doi.org/10.26685/urncst.481.

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Introduction: Stability of the acetabular component is a critical factor in the success of primary and revision total hip arthroplasty (THA) procedures. As such, the identification of implant surface characteristics that maximize stability of the acetabular cup is an important research objective. While titanium has historically been the most commonly used implant material, the proportion of THA procedures utilizing porous tantalum (PTa) implants has increased in recent years. The objective of this review is to examine the comparative mechanical and osseointegrative performance of PTa and porou
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Sousa, T. H. S., C. A. Fortulan, E. S. Antunes, and B. de M. Purquerio. "Concept of a Bioactive Implant with Functional Gradient Structure." Key Engineering Materials 396-398 (October 2008): 221–24. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.221.

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A material able to be used as bone implant for specific applications was developed. The proposed solution establishes that all implant surfaces should be bioactive since porous surfaces in contact with bone are extremely necessary for bone adhesion. The bioactive material composite with high mechanical strength designed with a PMMA functional structure gradient produced in this work has a dense core enveloped by a porous bioactive surface. Pore sizes and shapes as well their interconnectivity was analyzed by SEM tests; the cytotoxicity was investigated in vitro using Vero cell and bone conduct
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Kallol, K., M. Motalab, M. Parvej, P. Konari, H. Barghouthi, and M. Khandaker. "Differences of Curing Effects between a Human and Veterinary Bone Cement." Materials 12, no. 3 (2019): 470. http://dx.doi.org/10.3390/ma12030470.

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The goal of the study is to understand how the curing characteristics of a human bone cement (HBC) and veterinary bone cement (VBC) influence the mechanical behavior of each cement and cement bonding with an implant. This study hypothesizes that the curing temperature and time influence the mechanical properties of the cement adjacent to the implant, which resulted in the variability in bonding strength between the implant and cement. To test this hypothesis, this study measured the exothermic temperature, flexural strength, hardness, and morphology of a HBC and VBC at different curing times.
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Li, Min, Satoshi Komasa, Shigeki Hontsu, Yoshiya Hashimoto, and Joji Okazaki. "Structural Characterization and Osseointegrative Properties of Pulsed Laser-Deposited Fluorinated Hydroxyapatite Films on Nano-Zirconia for Implant Applications." International Journal of Molecular Sciences 23, no. 5 (2022): 2416. http://dx.doi.org/10.3390/ijms23052416.

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Standard zirconia implants used in restoration still present problems related to inertness and long-term stability. Various physicochemical approaches have been used to modify the implant surfaces to improve early and late bone-to-implant integration; however, no ideal surface modification has been reported. This study used pulsed laser deposition to deposit a fluorinated hydroxyapatite (FHA) film on a zirconia implant to create a biologically active surface. The film prepared was uniform, dense, and crack-free, and exhibited granular surface droplets; it also presented excellent mechanical st
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Oliscovicz, Nathalia Ferraz, Antônio Carlos Shimano, Élcio Marcantonio Junior, César Penazzo Lepri, and Andréa Candido dos Reis. "Analysis of Primary Stability of Dental Implants Inserted in Different Substrates Using the Pullout Test and Insertion Torque." International Journal of Dentistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/194987.

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The aim of the study was to evaluate mechanical behavior of implants inserted in three substrates, by measuring the pullout strength and the relative stiffness. 32 implants (Master Porous-Conexao, cylindrical, external hexagon, and surface treatment) were divided into 4 groups (n=8): pig rib bone, polyurethane Synbone, polyurethane Nacional 40 PCF, and pinus wood. Implants were installed with the exact distance of 5 mm of another implant. The insertion torque (N·cm) was quantified using the digital Kratos torque meter and the pullout test (N) was performed by an axial traction force toward the
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Camilo, Claudia C., C. A. Fortulan, N. A. Parizotto, and B. de M. Purquerio. "Porous Alumina Scaffolds with Bioactive Coating: Implants in the Rat Tibia and In Vitro Studies." Key Engineering Materials 396-398 (October 2008): 699–702. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.699.

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Ceramic scaffolds, mechanically qualified, highly porous, non biodegradable and with bioactive coating have been manufactured. The aim of this study was evaluated mechanical and in vivo responses of the porous alumina scaffolds with bioactive coating. The bioactive coating was performed under vacuum with bio-glass (45S5®)) and hydroxyapatite (HAp). Alumina ceramics (Al2O3) are used for bone implants in function of the biocompatibility and the high mechanical reliability of this material. Unfavourably alumina is a bioinert material and bone ingrowths are hard to occur and any implant anchorage
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Aşik, Emin Erkan, Bensu Tunca, Gül Ipek Nakaş, and Şakir Bor. "Fatigue Behavior of 51 Vol.% Porous Ti-6Al-4V Alloy." Materials Science Forum 783-786 (May 2014): 1221–25. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.1221.

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Porous titanium alloys are widely used as implant materials due to their mechanical behavior similar to that of bone. In addition, fatigue properties of implant materials are especially important since medical implants mostly exposed to cyclic compressive loading conditions. In this study, porous Ti-6Al-4V alloy has been produced via sintering at 12000C for 2 hours employing magnesium space holder technique. Porosity of the produced foams were measured according to Archimedes’ principle and calculated to be in the range of 51 ± 1 vol.%. Mechanical properties of the foams were characterized by
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de Sousa, Lucíola Lucena, Deborah Gouvêa Prado, Mariny Fabiéle Cabral Coelho, et al. "Evaluation of the Bactericidal Properties of the Biomimetic Coating of Ha Doped with AgNO3." Materials Science Forum 930 (September 2018): 362–67. http://dx.doi.org/10.4028/www.scientific.net/msf.930.362.

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Commercially pure titanium and its alloys have been widely applied as implant materials with excellent long-term results and present benefits compared to other metal biomaterials because of the good mechanical strength and modulus of elasticity with values close to those of the bone. Titanium implants coated with hydroxyapatite give the metal a bioactive surface, which induces a direct connection between the implant and the bone tissue. As a consequence, the time for osseointegration, and hence the total treatment time, may be reduced. This paper aimed at studying the bactericidal effect of si
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Kennedy, S. M., V. Arunachalam, and A. Kannan. "A novel carbon‐flax bioepoxy hybrid composite bone plate with enhanced bio‐mechanical performance." Materialwissenschaft und Werkstofftechnik 55, no. 4 (2024): 508–17. http://dx.doi.org/10.1002/mawe.202300230.

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AbstractThis study aimed to pioneer a transformative approach in orthopedic implant design by developing and analyzing a groundbreaking carbon‐flax reinforced bioepoxy hybrid composite bone plate. The primary objectives of the present research were to enhance the bio‐mechanical performance of orthopedic implants and explore the potential applications of the novel material for orthopedic implants. Hybrid composite plate was fabricated mimicking the human bone with the soft inner core and a rigid outer coating. Mechanical properties for the hybrid composite were obtained through material charact
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Kocak, Sait, and Tezcan Sekercioglu. "Experimental and numerical static failure analyses of total hip replacement interfaces." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 11 (2019): 1183–95. http://dx.doi.org/10.1177/0954411919877305.

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In joint replacement surgery, the critical point in the success of cemented implants is the stabilisation between the implant and bone. The stronger the interlocking achieved on both the implant–cement interface and the cement–bone interface, the more durable is the surgical intervention. However, to date, it has not been possible to prevent aseptic loosening of hip implants, thus making a revision surgery necessary after a period of about 10 years. In this study, the tensile and shear strengths of the implant–cement and cement–bone interfaces and factors which can affect these strengths such
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