Bio-medical materials and engineering最新文献

Effect of coamorphization on meloxicam/saccharine: Intermolecular interaction investigations using chemometrics. 共定型对美洛昔康/糖精的影响：利用化学计量学研究分子间相互作用。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-21 DOI: 10.1177/09592989251341175

Yuta Otsuka

{"title":"Effect of coamorphization on meloxicam/saccharine: Intermolecular interaction investigations using chemometrics.","authors":"Yuta Otsuka","doi":"10.1177/09592989251341175","DOIUrl":"https://doi.org/10.1177/09592989251341175","url":null,"abstract":"Background: Aqueous solubility of pharmaceuticals is a factor as it is directly associated with bioavailability; accordingly, strategies to enhance solubility have been well investigated. Objectives: The purpose of this study was to determine the effects of coamorphization on meloxicam (MX) and saccharine (SA) mixtures. Methods: An equimolar mixture of MX and SA was ground for 4 h at 300 rpm. The obtained samples were evaluated using Fourier-transform mid-infrared spectroscopy, Fourier transform near-infrared spectroscopy, powder X-ray diffraction (PXRD), and thermal analysis. No molecular interactions were observed in the physical mixture sample. The ground samples showed broad peaks in the PXRD patterns and an exothermic peak at an early temperature. Results: The results suggested that the grinding process transformed MX and SA into a coamorphous phase. The attenuated total reflection - IR spectra exhibited new peaks at 1719 cm-1 and 1398 cm-1, and the NH peak disappeared with grinding time. Measurement data of MX and SA ground sample suggested they constructed coamorphous phase. Conclusion: It was indicated by multivariate analysis that the formation of the MX/SA coamorphous system occurred in a two-step process.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"9592989251341175"},"PeriodicalIF":1.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144682014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lumbar stress distribution in sitting posture with considering spinal alignment: A finite element analysis. 腰椎应力分布在坐姿与考虑脊柱对齐：一个有限元分析。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-13 DOI: 10.1177/09592989251358151

Ryota Toyohara, Takahiro Hiramukai, Toshiro Ohashi

{"title":"Lumbar stress distribution in sitting posture with considering spinal alignment: A finite element analysis.","authors":"Ryota Toyohara, Takahiro Hiramukai, Toshiro Ohashi","doi":"10.1177/09592989251358151","DOIUrl":"https://doi.org/10.1177/09592989251358151","url":null,"abstract":"BackgroundSitting on a chair is an essential part of daily life, however the posture is a heavy burden on the lower back, leading to lower back pain.ObjectiveIn this study, lumbar stress distribution was analyzed when sitting on a chair with different backrest inclination, sitting distance and seat pan inclination in order to visualize the stress on intervertebral discs and sacroiliac joints (SIJs).MethodsBody pressure distribution was measured on backrests and seat pans of six subjects. Each sitting posture on a chair was reproduced using a finite element model of a spine and pelvis, and the stress distribution in the lower back was analyzed based on the results of the body pressure distribution measurements.ResultsWhen the seat pan was tilted forward, the pressure on the backrest decreased, whereas the pressure increased with large sitting distance. Finite element analyses showed that equivalent stresses on the SIJs and intervertebral discs was decreased when sitting on a chair shallowly and with the seat pan tilted forward.ConclusionBoth sitting shallowly and with a forward-tilted seat are postures that increase the trunk-thigh angle, and the load on the lower back was reduced by reducing the moment applied to the sacrum.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"9592989251358151"},"PeriodicalIF":1.0,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144625371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hepatitis nursing robot based on RP-lidarA1 sensor. 基于RP-lidarA1传感器的肝炎护理机器人。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-01 Epub Date: 2025-01-22 DOI: 10.1177/09592989241313110

Yunxia Dai, Bei Xue, Qian Zhang, Juxiang Shao

{"title":"Hepatitis nursing robot based on RP-lidarA1 sensor.","authors":"Yunxia Dai, Bei Xue, Qian Zhang, Juxiang Shao","doi":"10.1177/09592989241313110","DOIUrl":"10.1177/09592989241313110","url":null,"abstract":"BackgroundTo alleviate the workload of medical staff and provide personalized care for hepatitis patients, this study focuses on developing a hepatitis care robot.ObjectiveThe objective of this study is to integrate the RP-lidarA1 sensor into a hepatitis care robot to achieve high-precision environmental perception, mapping, and navigation, thereby improving healthcare services.MethodsThe RP-lidarA1 sensor was utilized for environmental scanning, and the MPU6050 chip was used to collect attitude data. An improved RBPF-SLAM algorithm was employed for high-precision map construction. For positioning and navigation, a combination of the A* algorithm and Dynamic Window Approach (DWA) algorithm was used to optimize path planning and obstacle avoidance.ResultsSimulation experiments demonstrated that the improved algorithm reduced the number of particles to 50 in a 140 m2 area and shortened the map construction time to 1200 s. The A* algorithm effectively planned optimal paths, while the DWA algorithm improved navigation efficiency. Satisfaction surveys indicated that 92.4% of hepatitis patients and 81.8% of nurses were highly satisfied with the robot's performance.ConclusionsThe hepatitis care robot integrating the RP-lidarA1 sensor showed excellent performance in autonomous navigation, map construction, and obstacle avoidance, significantly enhancing the quality and efficiency of medical services.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"222-233"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lung cancer diagnosis with GAN supported deep learning models. 用GAN支持的深度学习模型诊断肺癌。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-01 Epub Date: 2025-01-31 DOI: 10.1177/09592989241308775

Talip Çay

{"title":"Lung cancer diagnosis with GAN supported deep learning models.","authors":"Talip Çay","doi":"10.1177/09592989241308775","DOIUrl":"10.1177/09592989241308775","url":null,"abstract":"BackgroundLung cancer is a leading cause of cancer-related deaths worldwide, making early diagnosis crucial for improving treatment success and survival rates. Traditional diagnostic methods, such as biopsy and manual CT image interpretation, are time-consuming and prone to variability, highlighting the need for more efficient and accurate tools. Advances in deep learning offer promising solutions by enabling faster and more objective medical image analysis.ObjectiveThis study aims to classify benign, malignant, and normal lung CT images using advanced deep learning techniques, including a specially developed CNN model, to improve diagnostic accuracy.MethodsA dataset of 1097 lung CT images was balanced using GANs and preprocessed with techniques like histogram equalization and noise reduction. The data was split into 70% training and 30% testing sets. Models including VGG19, AlexNet, InceptionV3, ResNet50, and a custom-designed CNN were trained. Additionally, Faster R-CNN-based region proposal methods were integrated to enhance detection performance.ResultsThe custom CNN model achieved the highest accuracy at 99%, surpassing other architectures like VGG19, which reached 97%. The Faster R-CNN integration further improved sensitivity and classification precision.ConclusionThe results demonstrate the effectiveness of GAN-supported deep learning models for lung cancer classification, highlighting their potential clinical applications for early detection and diagnosis.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"209-221"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibacterial activity of carbonate hydroxyapatite-based honeycomb scaffolds doped with zinc for medical implants. 医用植入物中掺杂锌的碳酸盐羟基磷灰石基蜂窝支架的抗菌活性。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-01 Epub Date: 2025-03-13 DOI: 10.1177/09592989241313112

Moch Izzul Haq Al Maruf, Wahyu Widiawati, Al Viyah Rahmaidah, Mona Sari, Yusril Yusuf

{"title":"Antibacterial activity of carbonate hydroxyapatite-based honeycomb scaffolds doped with zinc for medical implants.","authors":"Moch Izzul Haq Al Maruf, Wahyu Widiawati, Al Viyah Rahmaidah, Mona Sari, Yusril Yusuf","doi":"10.1177/09592989241313112","DOIUrl":"10.1177/09592989241313112","url":null,"abstract":"BackgroundThe utilization of bioceramics for medical implants necessitates the incorporation of antibacterial properties to mitigate post-surgical inflammation of bone tissue.ObjectiveIn this research, Zn2+ ions were introduced as an antibacterial agent into carbonate-hydroxyapatite-based honeycomb Scaffold bioceramics (CHA/HCB), with varying doping concentrations, to investigate the impact of Zn2+ on the antibacterial activity of CHA/HCB against Staphylococcus aureus and Pseudomonas aeruginosa.MethodsCHA was synthesized from abalone shells through the co-precipitation method, followed by the fabrication of a CHA-based scaffold with HCB using the porogen leaching technique. Subsequently, the Zn ion doping process was executed through the ion exchange method, using concentrations of 0.05 M, 0.1 M, 0.15 M, and 0.2 M. The samples were characterized using XRF and antibacterial test.ResultsThe XRF results revealed that the Ca/P ratio of CHA/HCB was within the range of 1.48-1.85, indicating a declining trend with the introduction of Zn2+ as a dopant. Nevertheless, these results remained within acceptable ranges, ensuring compatibility with bone tissue. In terms of antibacterial activity, the measured inhibition zone diameters increased alongside the increase of Zn concentration. The zone diameters ranged from 14.3 to 22.0 mm against Staphylococcus aureus and 13.7 to 21.4 mm against Pseudomonas aeruginosa.ConclusionThe findings suggest that Zn doping in CHA/HCB bioceramics has a potential an antibacterial agent in CHA scaffolds as well as potential for practical applications, particularly in reducing the risk of postoperative infection in bone tissue implantation.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"234-240"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using a polyurea resin-bonded mounted wheel, dental resin composites and porcelain are polished precisely. 使用聚脲树脂粘接安装轮，牙科树脂复合材料和瓷器被精确抛光。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-01 Epub Date: 2025-04-15 DOI: 10.1177/09592989241313327

Hideaki Sato, Yutaka Kameyama, Ryokichi Shimpo, Yuanyuan Yang, Satoshi Komasa

{"title":"Using a polyurea resin-bonded mounted wheel, dental resin composites and porcelain are polished precisely.","authors":"Hideaki Sato, Yutaka Kameyama, Ryokichi Shimpo, Yuanyuan Yang, Satoshi Komasa","doi":"10.1177/09592989241313327","DOIUrl":"10.1177/09592989241313327","url":null,"abstract":"BackgroundThe success of dental restorations depends on achieving adequate surface integrity. However, grinding and polishing are generally ineffective because of the special physical and chemical compositions and properties of the composites. Polyurea resin is an elastomer with high elasticity, abrasion resistance, heat resistance, and toughness. When it is used as a bond, grinding wheels with high grain grip strength can be fabricated.ObjectiveWe fabricated a mounted wheel with a polyurea resin as the bond and used it to polish a composite resin and porcelain under clinical polishing conditions. The effects of the approach on the polished surface roughness and morphology were evaluated with respect to the type of mounted wheel, initial surface roughness, abrasive particle size, and polishing time.MethodsThis study fabricates a mounted wheel with polyurea resin as the bond and uses it to polish composite resin and porcelain under clinical polishing conditions. The effects of the approach on the polished surface roughness and morphology are evaluated against the type of mounted wheel, initial surface roughness, abrasive particle size, and polishing time.ResultsAmong single-crystal diamond, siliconcon carbide (GC), and alumina (WA) abrasive grains, diamond abrasive grains produced the best finish for most tested resin composites. However, WA abrasive grains are effective for polishing Estenia (it has the highest filler content). The polishing performance of the porcelain varied with the initial surface roughness and abrasive particle diameter.ConclusionThis study provides guidance for improving and developing mounted wheels for clinical applications.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"241-256"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12264306/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional evaluation of lower extremity alignment during gait and standing in healthy elderly individuals: A comparative study using fluoroscopy and 3D to 2D image matching. 健康老年人步态和站立时下肢对齐的三维评估：使用透视和3D到2D图像匹配的比较研究

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-07-01 Epub Date: 2025-02-04 DOI: 10.1177/09592989251315369

Tatsuya Soeno, Takashi Sato, Koichi Kobayashi, Ryota Katsumi, Kazutaka Otani, Hiroyuki Kawashima

{"title":"Three-dimensional evaluation of lower extremity alignment during gait and standing in healthy elderly individuals: A comparative study using fluoroscopy and 3D to 2D image matching.","authors":"Tatsuya Soeno, Takashi Sato, Koichi Kobayashi, Ryota Katsumi, Kazutaka Otani, Hiroyuki Kawashima","doi":"10.1177/09592989251315369","DOIUrl":"10.1177/09592989251315369","url":null,"abstract":"BackgroundThe differences in bony alignment of the lower extremities during gait compared to standing remain unclear.ObjectiveThis study aimed to evaluate three-dimentional (3D) lower extremity alignment in healthy elderly individuals during the stance phase of gait and compare it with static standing alignment.MethodsThirty-four knees (9 females, 8 males; mean age 73.2 years) were assessed using single-plane X-ray fluoroscopy and a 3D to two-dimensional (2D) image matching technique. Alignment during stance phase and standing was evaluated in a world coordinate system, using the direction of gravity and frontal X-ray (aligned with the gait direction) as references.ResultsCompared to standing, the femur (3.5°), tibia (3.2°) and tibial joint line relative to the floor (3.3°) exhibited increased lateral inclination during stance phase (p < 0.01). In the transverse plane, the femur showed a significant increase in external rotation during stance phase (5.0°, p < 0.01) compared to standing, with no significant difference in tibial rotation.ConclusionLower extremity alignment significantly differs between static standing and gait, making it challenging to accurately infer the alignment during gait from standing assessments. This approach offers a practical means for assessing functional lower extremity alignment, potentially improving clinical outcomes in realignment surgeries.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"257-266"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical failure analysis of Thompson hip prosthesis. Thompson髋关节假体的实验与数值失效分析。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-06-30 DOI: 10.1177/09592989251353462

Ali Motameni, Ömer Can Farukoğlu, Rıza Gürbüz, İhsan Korkut

{"title":"Experimental and numerical failure analysis of Thompson hip prosthesis.","authors":"Ali Motameni, Ömer Can Farukoğlu, Rıza Gürbüz, İhsan Korkut","doi":"10.1177/09592989251353462","DOIUrl":"https://doi.org/10.1177/09592989251353462","url":null,"abstract":"BackgroundThere are different surgical procedures to fix femoral head-neck fractures, such as total hip arthroplasty and hemiarthroplasty. Under optimal conditions, the inserted prosthesis should last a long time, possibly a lifetime, with only trace amounts of wear each year due to the friction between the femur bone and the prosthesis stem. However, in some cases, failure due to excessive wear, creep, fatigue, corrosion, etc., can occur.ObjectiveThis study investigates the failure causes of a Thompson hip prosthesis both experimentally and numerically.MethodsThe stem of the prosthesis, which is inserted into the femur, broke inside a patient's body over time. Following the removal surgery, the severely damaged and fractured stem was examined to determine the root causes of the failure. For this purpose, fractographic examination of the fractured surfaces was conducted with scanning electron microscope (SEM). Microstructural analyses were performed using optical microscope, and the chemical composition of the prosthesis was analyzed with energy dispersive spectroscopy (EDS). Vickers hardness (HV30) test was conducted on the femoral stem. Additionally, finite element method (FEM) was applied to estimate the forces acting on the prosthesis.ResultsIt was observed that fatigue cracks initiated and propagated from the outer surface of the femoral stem at locations very close to the maximum von Mises stresses observed in the FEM analysis. However, the load magnitudes in the FEM analysis were not high enough to initiate any cracks.ConclusionIt is considered that crack initiation occurred due to material defects from the prosthesis manufacturing process, and the cyclic loading during body motion propagated these cracks. Ultimately, the fracture of the Thompson hip prosthesis occurred.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"9592989251353462"},"PeriodicalIF":1.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144526410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of breast cancer using fractional discrete sinc transform based on empirical Fourier decomposition. 基于经验傅里叶分解的分数阶离散正弦变换检测乳腺癌。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-06-20 DOI: 10.1177/09592989251351608

Mohamed Moustafa Azmy

{"title":"Detection of breast cancer using fractional discrete sinc transform based on empirical Fourier decomposition.","authors":"Mohamed Moustafa Azmy","doi":"10.1177/09592989251351608","DOIUrl":"10.1177/09592989251351608","url":null,"abstract":"Breast cancer is the most common cause of death among women worldwide. Early detection of breast cancer is important; for saving patients' lives. Ultrasound and mammography are the most common noninvasive methods for detecting breast cancer. Computer techniques are used to help physicians diagnose cancer. In most of the previous studies, the classification parameter rates were not high enough to achieve the correct diagnosis. In this study, new approaches were applied to detect breast cancer images from three databases. The programming software used to extract features from the images was MATLAB R2022a. Novel approaches were obtained using new fractional transforms. These fractional transforms were deduced from the fraction Fourier transform and novel discrete transforms. The novel discrete transforms were derived from discrete sine and cosine transforms. The steps of the approaches were described below. First, fractional transforms were applied to the breast images. Then, the empirical Fourier decomposition (EFD) was obtained. The mean, variance, kurtosis, and skewness were subsequently calculated. Finally, RNN-BILSTM (recurrent neural network-bidirectional-long short-term memory) was used as a classification phase. The proposed approaches were compared to obtain the highest accuracy rate during the classification phase based on different fractional transforms. The highest accuracy rate was obtained when the fractional discrete sinc transform of approach 4 was applied. The area under the receiver operating characteristic curve (AUC) was 1. The accuracy, sensitivity, specificity, precision, G-mean, and F-measure rates were 100%. If traditional machine learning methods, such as support vector machines (SVMs) and artificial neural networks (ANNs), were used, the classification parameter rates would be low. Therefore, the fourth approach used RNN-BILSTM to extract the features of breast images perfectly. This approach can be programed on a computer to help physicians correctly classify breast images.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"9592989251351608"},"PeriodicalIF":1.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144339831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of artificial tooth root materials on temperature distribution in peri-implantitis for photothermal therapy. 光热治疗种植周炎人工牙根材料对温度分布的影响。

IF 1 4区医学

Bio-medical materials and engineering Pub Date : 2025-06-18 DOI: 10.1177/09592989251346472

Donghyuk Kim, Hyunjung Kim, Hee-Sun Kim

{"title":"The influence of artificial tooth root materials on temperature distribution in peri-implantitis for photothermal therapy.","authors":"Donghyuk Kim, Hyunjung Kim, Hee-Sun Kim","doi":"10.1177/09592989251346472","DOIUrl":"https://doi.org/10.1177/09592989251346472","url":null,"abstract":"BackgroundA representative method for compensating for tooth loss is implant placement. Dental implants consist of a crown, an abutment, and an artificial tooth root, and are made of various materials. Proper care is essential for the long-term use of implants, and negligence in care can lead to inflammation around the implant. The most representative inflammation that occurs around implants is peri-implantitis, and various laser treatments are being studied recently to eliminate it.ObjectiveIn this study, the effect of implant materials on temperature rise within inflamed tissue was analyzed both theoretically and numerically in removal of peri-implantitis using photothermal therapy.MethodsThe temperature distribution in tissue for various artificial root materials, laser irradiation angles, and intensities was calculated, and degree of tissue death was determined using the Arrhenius damage integral. Furthermore, percentage of tissue death was analyzed using the Arrhenius thermal damage ratio and the normal tissue Arrhenius thermal damage ratio to identify trends in the results based on treatment conditions.ResultsConsequently, with regard to materials used for artificial tooth roots, the prevailing trend in treatment indicates that zirconia is the most effective material, followed by Ti-6Al-4V, titanium, and tantalum. The efficacy of laser irradiation increases as the angle approaches vertical.ConclusionThe findings indicate that increasing laser power and reducing the irradiation angle are beneficial when focusing solely on inflammation.","PeriodicalId":9109,"journal":{"name":"Bio-medical materials and engineering","volume":" ","pages":"9592989251346472"},"PeriodicalIF":1.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0