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Suspension-Sprayed Calcium Phosphate Coatings with Antibacterial Properties. 具有抗菌性能的悬浮喷涂型磷酸钙涂层。
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-25 DOI: 10.3390/jfb15100281
Maria Carolina Lanzino, Long-Quan R V Le, Anika Höppel, Andreas Killinger, Wolfgang Rheinheimer, Sofia Dembski, Ali Al-Ahmad, Hermann O Mayr, Michael Seidenstuecker

Prosthesis loosening due to lack of osteointegration between an implant and surrounding bone tissue is one of the most common causes of implant failure. Further, bacterial contamination and biofilm formation onto implants represent a serious complication after surgery. The enhancement of osteointegration can be achieved by using bioconductive materials that promote biological responses in the body, stimulating bone growth and thus bonding to tissue. Through the incorporation of antibacterial substances in bioconductive, biodegradable calcium phosphate (CaP) coatings, faster osteointegration and bactericidal properties can be achieved. In this study, Cu-doped CaP supraparticles are spray-dried and suspension-sprayed CaP ceramic coatings with antibacterial properties are prepared using high-velocity suspension flame spraying (HVSFS). The objective was to increase the coatings' porosity and investigate which Cu-doped supraparticles have the strongest antibacterial properties when introduced into the coating layers. Biocompatibility was tested on human Osteosarcoma cells MG63. A porosity of at least 13% was achieved and the supraparticles could be implemented, enhancing it up to 16%. The results showed that the addition of Cu-doped supraparticles did not significantly reduce the number of viable cells compared to the Cu-free sample, demonstrating good biocompatibility. The antimicrobial activity was assessed against the bacterial strains Escherichia coli and Staphylococcus aureus, with Safe Airborne Antibacterial testing showing a significant reduction in both Gram-positive and Gram-negative strains on the Cu-doped coatings.

种植体与周围骨组织之间缺乏骨结合而导致的假体松动是种植失败的最常见原因之一。此外,种植体上的细菌污染和生物膜的形成也是术后的一个严重并发症。生物导电材料可促进体内生物反应,刺激骨生长,从而与组织结合,从而增强骨结合。通过在生物导电、可生物降解的磷酸钙(CaP)涂层中加入抗菌物质,可实现更快的骨结合和杀菌特性。本研究采用高速悬浮火焰喷涂(HVSFS)技术,对掺铜的 CaP 超微粒进行喷雾干燥,并制备出具有抗菌性能的悬浮喷涂 CaP 陶瓷涂层。目的是增加涂层的孔隙率,并研究哪种掺铜超微粒在引入涂层时具有最强的抗菌性能。在人骨肉瘤细胞 MG63 上测试了生物相容性。测试结果表明,涂层的孔隙率至少达到了 13%,超级微粒的加入可将孔隙率提高到 16%。结果表明,与不含铜的样品相比,添加掺铜的超微粒并没有明显减少存活细胞的数量,这表明该材料具有良好的生物相容性。针对细菌菌株大肠杆菌和金黄色葡萄球菌的抗菌活性进行了评估,安全空气传播抗菌测试表明,掺铜涂层上的革兰氏阳性和革兰氏阴性菌株均明显减少。
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引用次数: 0
Functional Scaffolds for Bone Tissue Regeneration: A Comprehensive Review of Materials, Methods, and Future Directions. 用于骨组织再生的功能性支架:材料、方法和未来方向综合评述》。
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-25 DOI: 10.3390/jfb15100280
Emily Ann Todd, Nicholas A Mirsky, Bruno Luís Graciliano Silva, Ankita Raja Shinde, Aris R L Arakelians, Vasudev Vivekanand Nayak, Rosemary Adriana Chiérici Marcantonio, Nikhil Gupta, Lukasz Witek, Paulo G Coelho

Bone tissue regeneration is a rapidly evolving field aimed at the development of biocompatible materials and devices, such as scaffolds, to treat diseased and damaged osseous tissue. Functional scaffolds maintain structural integrity and provide mechanical support at the defect site during the healing process, while simultaneously enabling or improving regeneration through amplified cellular cues between the scaffold and native tissues. Ample research on functionalization has been conducted to improve scaffold-host tissue interaction, including fabrication techniques, biomaterial selection, scaffold surface modifications, integration of bioactive molecular additives, and post-processing modifications. Each of these methods plays a crucial role in enabling scaffolds to not only support but actively participate in the healing and regeneration process in bone and joint surgery. This review provides a state-of-the-art, comprehensive overview of the functionalization of scaffold-based strategies used in tissue engineering, specifically for bone regeneration. Critical issues and obstacles are highlighted, applications and advances are described, and future directions are identified.

骨组织再生是一个快速发展的领域,旨在开发生物相容性材料和装置(如支架),以治疗病变和受损的骨组织。功能性支架可在愈合过程中保持结构的完整性,并在缺损部位提供机械支撑,同时通过放大支架与原生组织之间的细胞线索,促进或改善再生。为了改善支架与宿主组织之间的相互作用,人们对功能化进行了大量研究,包括制造技术、生物材料选择、支架表面改性、生物活性分子添加剂的整合以及后处理改性。这些方法中的每一种都在使支架不仅支持而且积极参与骨关节手术的愈合和再生过程中发挥着至关重要的作用。本综述全面概述了组织工程中使用的基于支架的功能化策略,特别是用于骨再生的策略。文章强调了关键问题和障碍,介绍了应用和进展,并指出了未来的发展方向。
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引用次数: 0
Radioprotection Performance Evaluation of 3D-Printed and Conventional Heat-Cured Dental Resins for Radiotherapy Prostheses. 用于放射治疗假体的三维打印和传统热固化牙科树脂的放射防护性能评估
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-25 DOI: 10.3390/jfb15100282
Jiangyu Wang, Mai Murase, Yuka I Sumita, Ryoichi Notake, Masako Akiyama, Ryoichi Yoshimura, Noriyuki Wakabayashi

3D printing is increasingly used in dentistry, with biocompatible resins playing a key role. This study compared the radioprotective properties of a commonly used 3D-printed resin (Formlabs surgical guide resin) with traditional heat-cured resin and examined the relationship between material thickness and radiation attenuation. The specimens consisted of 3D-printed and heat-cured resin specimens, each measuring 45 × 45 mm2, with five different thicknesses (6, 8, 10, 12, and 14 mm), totaling 100 samples. Both types of resin specimens underwent testing with 150 MU external beam radiation therapy (EBRT) and 400 cGy brachytherapy. Radiation experiments indicated that under EBRT conditions, there were no significant differences in radiation attenuation between the 3D-printed and heat-cured resins across all thickness groups. In brachytherapy, the attenuation of the 3D-printed resin was significantly lower than the heat-cured resin in the 6 mm and 8 mm groups. Specifically, attenuation rates were 48.0 ± 0.7 (3D-printed) vs. 45.2 ± 1.9 (heat-cured) in the 6 mm group, and 39.6 ± 1.3 vs. 37.5 ± 1.1 in the 8 mm group. Both resins showed significant positive linear correlations between thickness and attenuation (p < 0.001) within 6-14 mm. Thus, 3D-printed resin shows promising radioprotective properties and is a viable alternative to traditional heat-cured resin.

三维打印技术在牙科领域的应用越来越广泛,其中生物相容性树脂发挥着关键作用。本研究比较了一种常用 3D 打印树脂(Formlabs 手术导板树脂)与传统热固化树脂的辐射防护特性,并研究了材料厚度与辐射衰减之间的关系。试样由三维打印和热固化树脂试样组成,每个试样的尺寸为 45 × 45 平方毫米,有五种不同的厚度(6、8、10、12 和 14 毫米),共计 100 个试样。两种类型的树脂试样都接受了 150 MU 外照射疗法(EBRT)和 400 cGy 近距离放射治疗的测试。辐射实验表明,在 EBRT 条件下,3D 打印树脂和热固化树脂在所有厚度组的辐射衰减方面均无明显差异。在近距离放射治疗中,在 6 毫米和 8 毫米组中,三维打印树脂的衰减率明显低于热固化树脂。具体来说,6 毫米组的衰减率为 48.0 ± 0.7(三维打印)对 45.2 ± 1.9(热固化),8 毫米组的衰减率为 39.6 ± 1.3 对 37.5 ± 1.1。在 6-14 毫米范围内,两种树脂的厚度与衰减之间均呈明显的正线性相关(p < 0.001)。因此,三维打印树脂显示出良好的辐射防护特性,是传统热固化树脂的可行替代品。
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引用次数: 0
Microfilm Coatings: A Biomaterial-Based Strategy for Modulating Femoral Deflection. 微薄膜涂层:基于生物材料的股骨变形调节策略
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-25 DOI: 10.3390/jfb15100283
Ana Elisabeth Olivares-Hernandez, Miguel Angel Olivares-Robles, Juan Vicente Méndez-Méndez, Claudia Gutiérrez-Camacho

Wear on the surface of the femoral head increases the risk of hip and femur fractures. Biomechanical experiments conducted on the femur are based on its bending and torsional rigidities. Studies regarding the deflection of the femur bone when the femoral head is coated with microfilms composed of durable and compatible biomaterials are poor. This study aimed to investigate the effects of different biomaterial microfilm coatings over the femoral head on the deflection of the human femur. We utilized 2023 R1 finite element analysis (FEA) software to model the directional deformation on the femoral head and examine the femur's deflection with varying microfilm thicknesses. The deflection of the femur bone was reported when the femoral head was uncoated and coated with titanium, stainless steel, and pure gold microfilms of different thicknesses (namely, 50, 75, and 100 μm). Our results show that the femur's minimum and maximum deflection occurred for stainless steel and gold, respectively. The deformation of the femur was lower when the femoral head was coated with a 50-micrometer microfilm of stainless steel, compared to the deformation obtained with gold and titanium. When the thickness of the microfilm for each of the materials was increased, the deformation continued to decrease. The minimum deformation of the femur occurred for a thickness of 100 μm with stainless steel, followed by titanium and gold. The difference in the directional deformation of the femur between the materials was more significant when the coating was 100 μm, compared to the thicknesses of 50 and 75 μm. The findings of this study are expected to significantly contribute to the development of advanced medical techniques to enhance the quality of life for patients with femur bone-related issues. This information can be used to develop more resilient coatings that can withstand wear and tear.

股骨头表面的磨损增加了髋部和股骨骨折的风险。对股骨进行的生物力学实验以其弯曲和扭转刚性为基础。有关股骨头表面涂有由耐用且兼容的生物材料组成的微薄膜时股骨头变形的研究还很少。本研究旨在探讨股骨头上不同生物材料微膜涂层对人体股骨挠度的影响。我们利用 2023 R1 有限元分析(FEA)软件建立了股骨头定向变形模型,并研究了不同微膜厚度下的股骨挠度。报告了股骨头未涂层和涂层不同厚度(即 50、75 和 100 μm)的钛、不锈钢和纯金微膜时的股骨头挠度。结果表明,不锈钢和金的股骨变形量分别最小和最大。与金和钛的变形量相比,在股骨头上覆盖 50 微米不锈钢微膜时,股骨的变形量较小。当每种材料的微膜厚度增加时,变形继续减小。不锈钢厚度为 100 μm 时,股骨变形最小,其次是钛和金。与 50 微米和 75 微米的厚度相比,当涂层厚度为 100 微米时,不同材料的股骨定向变形差异更为显著。这项研究的结果有望极大地促进先进医疗技术的发展,从而提高股骨头相关问题患者的生活质量。这些信息可用于开发更有弹性、更能承受磨损的涂层。
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引用次数: 0
Cyanoacrylate versus Collagen Membrane as a Sealing for Alveolar Ridge Preservation: A Randomized Clinical Trial. 氰基丙烯酸酯与胶原蛋白膜作为牙槽嵴保留的密封方法:随机临床试验。
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-24 DOI: 10.3390/jfb15100279
Fabio Camacho-Alonso, Osmundo Gilbel-Del Águila, Paula Ferrer-Díaz, David Peñarrocha-Oltra, Yolanda Guerrero-Sánchez, Juan Carlos Bernabeu-Mira

This study involved a randomized clinical trial that included 140 patients. Alveolar ridge preservation was performed with xenografts. Sealing in the control group consisted of a collagen membrane versus cyanoacrylate in the test group. The dental implants were placed immediately after extraction. The variables were evaluated at 3, 12, and 18 months of follow-up. Pearson's chi-squared test was used for qualitative variables and the Student t-test for related samples was used for quantitative variables. The change in buccolingual alveolar bone width was significantly greater in the CMX group than in the CX group after three months (p < 0.005). However, significance was not reached at the other follow-up timepoints (p > 0.005). CAL showed significantly greater values in the CMX group than in the CX group (p < 0.005), and MBL proved greater in the CMX group than in the CX group, with p < 0.001. Five membrane exposures were recorded in the CMX group. Cyanoacrylate as a sealing method for alveolar ridge preservation seems to afford better clinical and radiological results than collagen membrane.

这项研究是一项随机临床试验,共有 140 名患者参与。牙槽嵴保存采用异种移植。对照组使用胶原膜进行密封,而试验组则使用氰基丙烯酸酯进行密封。牙科植入物在拔牙后立即植入。在 3 个月、12 个月和 18 个月的随访中对各变量进行了评估。定性变量采用皮尔逊卡方检验,定量变量采用相关样本的学生 t 检验。三个月后,CMX 组的颊舌侧牙槽骨宽度变化明显大于 CX 组(P < 0.005)。但是,在其他随访时间点上没有达到显著性(P > 0.005)。CMX 组的 CAL 值明显高于 CX 组(p < 0.005),CMX 组的 MBL 值高于 CX 组(p < 0.001)。CMX 组记录了五次膜暴露。与胶原膜相比,氰基丙烯酸酯作为牙槽嵴保存的密封方法似乎能提供更好的临床和放射学效果。
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引用次数: 0
Core-Shell Microspheres with Encapsulated Gold Nanoparticle Carriers for Controlled Release of Anti-Cancer Drugs. 包裹金纳米粒子载体的核壳微球用于抗癌药物的控释。
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-24 DOI: 10.3390/jfb15100277
Lin Guo, Qilong Zhao, Min Wang

Cancer is one of the major threats to human health and lives. However, effective cancer treatments remain a great challenge in clinical medicine. As a common approach for cancer treatment, chemotherapy has saved the life of millions of people; however, patients who have gone through chemotherapy often suffer from severe side effects owing to the inherent cytotoxicity of anti-cancer drugs. Stabilizing the blood concentration of an anti-cancer drug will reduce the occurrence or severity of side effects, and relies on using an appropriate drug delivery system (DDS) for achieving sustained or even on-demand drug delivery. However, this is still an unmet clinical challenge since the mainstay of anti-cancer drugs is small molecules, which tend to be diffused rapidly in the body, and conventional DDSs exhibit the burst release phenomenon. Here, we establish a class of DDSs based on biodegradable core-shell microspheres with encapsulated doxorubicin hydrochloride-loaded gold nanoparticles (DOX@Au@MSs), with the core-shell microspheres being made of poly(lactic-co-glycolic acid) in the current study. By harnessing the physical barrier of the biodegradable shell of core-shell microspheres, DOX@Au@MSs can provide a sustained release of the anti-cancer drug in the test duration (which is 21 days in the current study). Thanks to the photothermal properties of the encapsulated gold nanoparticle carriers, the core-shell biodegradable microspheres can be ruptured through remotely controlled near-infrared (NIR) light, thereby achieving an NIR-controlled triggered release of the anti-cancer drug. Furthermore, the route of the DOX-Au@MS-enabled controlled release of the anti-cancer drug can provide durable cancer cell ablation for the long period of 72 h.

癌症是人类健康和生命的主要威胁之一。然而,有效的癌症治疗仍然是临床医学面临的巨大挑战。作为治疗癌症的常用方法,化疗挽救了数百万人的生命;然而,由于抗癌药物固有的细胞毒性,接受化疗的患者往往会出现严重的副作用。稳定抗癌药物的血药浓度可以降低副作用的发生率或严重程度,这有赖于使用适当的给药系统(DDS)来实现持续甚至按需给药。然而,由于抗癌药物主要是小分子药物,在体内扩散速度快,而传统的给药系统会出现猝发释放现象,因此这仍是一个尚未解决的临床难题。在这里,我们建立了一类基于可生物降解的核壳微球的 DDSs,其中封装了盐酸多柔比星负载的金纳米粒子(DOX@Au@MSs)。通过利用核壳微球可生物降解外壳的物理屏障,DOX@Au@MSs 可在测试期间(本研究中为 21 天)持续释放抗癌药物。由于封装金纳米粒子载体的光热特性,核壳生物可降解微球可通过远程控制的近红外(NIR)光破裂,从而实现近红外控制的抗癌药物触发释放。此外,DOX-Au@MS 实现抗癌药物控释的途径可提供 72 小时的持久癌细胞消融。
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引用次数: 0
Osseointegration of Dental Implants after Vacuum Plasma Surface Treatment In Vivo. 体内真空等离子体表面处理后牙科植入物的骨结合。
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-24 DOI: 10.3390/jfb15100278
Se Hoon Kahm, Sang Hwa Lee, Youbong Lim, Hyun Jeong Jeon, Kyoung-In Yun

Previous studies have highlighted the need for post-treatment of implants due to surface aging. This study investigated the effect of vacuum plasma (VP) treatment on the osseointegration of sandblasted, large grit, acid-etched (SLA) implant surfaces. The hypothesis was that VP might enhance implant stability, measured by implant stability quotient (ISQ) and histological osseointegration through bone-to-implant contact (BIC) and bone area ratio (BA) in rabbit models. Eighteen implants were either untreated or treated with VP and installed into the femurs of six rabbits, which were sacrificed after four weeks. Histological analyses of BIC and BA, along with micro-CT analysis of bone volume and ISQ, were performed. The VP-treated group showed higher levels of BA, bone volume, and ISQ, but no statistically significant differences were observed between the control and experimental groups. Despite limitations, both groups achieved better osseointegration and regeneration, warranting further studies on plasma treatment effects over varying implantation periods.

以往的研究强调,由于表面老化,需要对种植体进行后处理。本研究调查了真空等离子(VP)处理对喷砂、大颗粒、酸蚀(SLA)种植体表面骨结合的影响。假设 VP 可以提高种植体的稳定性(通过种植体稳定性商数(ISQ)来衡量),并通过兔模型中的骨-种植体接触(BIC)和骨面积比(BA)来提高组织学上的骨结合。18 个种植体在未经处理或使用 VP 处理的情况下被植入 6 只兔子的股骨,4 周后兔子被处死。对 BIC 和 BA 进行了组织学分析,并对骨量和 ISQ 进行了显微 CT 分析。VP治疗组显示出更高水平的BA、骨量和ISQ,但对照组和实验组之间没有统计学上的显著差异。尽管存在局限性,但两组都获得了更好的骨结合和再生效果,因此有必要对不同植入期的等离子处理效果进行进一步研究。
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引用次数: 0
Modular Hemipelvic Prosthesis Preserves Normal Biomechanics and Showed Good Compatibility: A Finite Element Analysis. 模块化半骨盆假体保留了正常的生物力学并显示出良好的兼容性:有限元分析
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-21 DOI: 10.3390/jfb15090276
Yuanrui Luo, Hongtao Sheng, Yong Zhou, Li Min, Chongqi Tu, Yi Luo

This study aimed to evaluate the biomechanical compatibility of a modular hemipelvic prosthesis by comparing stress distributions between an implanted pelvis and a healthy pelvis. Finite element analysis was used to simulate bilateral standing loads on both models, analyzing critical regions such as the sacroiliac joints, iliac crest, acetabulum, and prosthesis connection points. Six models with varied displacements of the hip joint rotational center were also introduced to assess the impact of deviations on stress distribution. The implanted pelvis had a stress distribution closely matching that of the intact pelvis, indicating that the prosthesis design maintained the biomechanical integrity of the pelvis. Stress patterns in displacement models with deviations of less than 10 mm were similar to the standard model, with only minor changes in stress magnitude. However, backward, upward, and inward deviations resulted in stress concentrations, particularly in the prosthesis connection points, increasing the likelihood of mechanical failure. The modular hemipelvic prosthesis demonstrated good biomechanical compatibility with minimal impact on pelvic stress distribution, even with moderate deviations in the hip joint's rotational center; outward, forward, and downward displacements are preferable to minimize stress concentration and prevent implant failure in cases where minor deviations in the rotational center are unavoidable during surgery.

本研究旨在通过比较植入骨盆和健康骨盆之间的应力分布,评估模块化半骨盆假体的生物力学兼容性。研究采用有限元分析方法模拟了两个模型的双侧站立负荷,分析了骶髂关节、髂嵴、髋臼和假体连接点等关键区域。此外,还引入了六个髋关节旋转中心位移不同的模型,以评估偏差对应力分布的影响。植入骨盆的应力分布与完整骨盆的应力分布非常接近,这表明假体设计保持了骨盆的生物力学完整性。偏差小于 10 毫米的位移模型的应力模式与标准模型相似,应力大小仅有微小变化。但是,向后、向上和向内的偏差会导致应力集中,尤其是在假体连接点,从而增加了机械故障的可能性。模块化半骨盆假体表现出良好的生物力学兼容性,即使髋关节旋转中心出现适度偏差,对骨盆应力分布的影响也很小;在手术中旋转中心出现轻微偏差不可避免的情况下,最好向外、向前和向下位移,以尽量减少应力集中,防止假体失效。
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引用次数: 0
Research Interest in Copper Materials for Caries Management: A Bibliometric Analysis. 对用于龋齿防治的铜材料的研究兴趣:文献计量分析
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-20 DOI: 10.3390/jfb15090274
Veena Wenqing Xu, Mohammed Zahedul Islam Nizami, Iris Xiaoxue Yin, John Yun Niu, Ollie Yiru Yu, Chun-Hung Chu

This study examined research interest in copper materials for caries management. We conducted an exhaustive literature search of English publications on copper materials for caries management. We removed duplicate publications and screened the titles and abstracts to identify relevant publications. Then, we analyzed the bibliometric data of the publications using the Bibliometrix and VOSviewer programs. This study included 75 laboratory studies, six clinical trials, and 17 reviews. Most of the original research studied copper or copper oxide nanoparticles (45/81, 56%). The materials could be doped into topical agents, restorative fillers, dental adhesives, dental implants, and orthodontic appliances. Since the first paper was published in 1980, publication counts gradually increased and surged in 2019. Among publications on copper materials for caries management, the publication counts and citations from 2019 to 2024 accounted for 65% (64/98) and 74% (1677/2255) over the last 45 years. Cocitation analysis revealed that the two main keywords were nanoparticles and antibacterial activity, and their burst strengths (period) were 3.84 (2021-2024) and 2.21 (2020-2021). The topics of the top two publications with the highest citation burst strength (period) are the antimicrobial effect of copper oxide nanoparticles (3.14, 2021-2022) and the dental application of copper nanoparticles (2.84, 2022-2024). In conclusion, this study revealed a growing interest in copper materials for caries management.

本研究对用于龋齿治疗的铜材料的研究兴趣进行了调查。我们对有关用于龋齿管理的铜材料的英文出版物进行了详尽的文献检索。我们删除了重复的出版物,并筛选了标题和摘要,以确定相关出版物。然后,我们使用 Bibliometrix 和 VOSviewer 程序分析了出版物的文献计量数据。本研究包括 75 项实验室研究、6 项临床试验和 17 篇综述。大多数原创研究都是研究铜或氧化铜纳米颗粒(45/81,56%)。这些材料可掺入外用制剂、修复填料、牙科粘合剂、牙科植入物和牙齿矫正器中。自1980年发表第一篇论文以来,发表论文的数量逐渐增加,并于2019年激增。在过去45年中,关于龋病管理铜材料的论文中,2019年至2024年的发表数和引用数分别占65%(64/98)和74%(1677/2255)。引文分析显示,两个主要关键词是纳米颗粒和抗菌活性,其爆发强度(周期)分别为3.84(2021-2024年)和2.21(2020-2021年)。引用突发强度(周期)最高的前两篇出版物的主题分别是纳米氧化铜的抗菌作用(3.14,2021-2022 年)和纳米铜的牙科应用(2.84,2022-2024 年)。总之,这项研究表明,人们对铜材料在龋齿防治方面的兴趣与日俱增。
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引用次数: 0
Short-Term Hydrolytic Degradation of Mechanical Properties of Absorbable Surgical Sutures: A Comparative Study. 可吸收手术缝合线机械性能的短期水解降解:比较研究
IF 5 3区 医学 Q1 ENGINEERING, BIOMEDICAL Pub Date : 2024-09-20 DOI: 10.3390/jfb15090273
Jakub Szabelski, Robert Karpiński

Surgical sutures play a crucial role in wound closure, facilitating the tissue-healing process across various fields of medicine. The objective of this study was to analyse the impact of seasoning time during the initial days/weeks of seasoning in Ringer's solution on the mechanical properties of five commercial absorbable sutures: SafilQuick+®, Novosyn®, MonosynQuick®, Monosyn® and Monoplus®, each with different absorption periods. The results demonstrated that the SafilQuick+ and MonosynQuick sutures lost strength within 9-12 days, as evidenced by statistically significant changes in tensile strength. In contrast, the Novosyn and Monoplus sutures did not exhibit significant changes in strength during the study period. Statistical analysis confirmed significant differences in the behaviour of the individual sutures, highlighting the importance of selecting appropriate suture material in the context of the specific medical procedure.

手术缝合线在伤口闭合中起着至关重要的作用,可促进各医学领域的组织愈合过程。本研究的目的是分析在林格氏溶液中浸泡最初几天/几周的浸泡时间对五种商用可吸收缝合线机械性能的影响:SafilQuick+®、Novosyn®、MonosynQuick®、Monosyn® 和 Monoplus®。结果表明,SafilQuick+ 和 MonosynQuick 缝线在 9-12 天内强度下降,拉伸强度的显著变化证明了这一点。相比之下,Novosyn 和 Monoplus 缝线在研究期间的强度变化不大。统计分析表明,每种缝合线的性能都存在明显差异,这突出说明了根据具体医疗程序选择合适缝合材料的重要性。
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Journal of Functional Biomaterials
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