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Platelet rich fibrin is not a barrier membrane!Or is it? 被引量:1
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作者 Amit Arvind Agrawal 《World Journal of Clinical Cases》 SCIE 2023年第11期2396-2404,共9页
Platelet-rich fibrin(PRF)is widely used in dentistry and other fields of medicine,and its use has become popular in dental implantology.In several published studies,PRF has been used as a barrier membrane.A barrier me... Platelet-rich fibrin(PRF)is widely used in dentistry and other fields of medicine,and its use has become popular in dental implantology.In several published studies,PRF has been used as a barrier membrane.A barrier membrane is a sheet of a certain material that acts as a biological and mechanical barrier against the invasion of cells that are not involved in bone formation,such as epithelial cells.Among the basic requirements of a'barrier membrane,occlusivity,stiffness,and space maintenance are the criteria that PRF primarily lacks;therefore,it does not fall under the category of barrier membranes.However,there is evidence that PRF membranes are useful in significantly improving wound healing.Does the PRF membrane act as a barrier?Should we think of adding or subtracting some points from the ideal requirements of a barrier membrane,or should we coin a new term or concept for PRF that will incorporate some features of a barrier membrane and be a combination of tissue engineering and biotechnology?This review is aimed at answering the basic question of whether the PRF membrane should be considered a barrier membrane or whether it is something more beyond the boundaries of a barrier membrane. 展开更多
关键词 platelet rich fibrin platelet rich plasma Barrier membrane Guided tissue regeneration Guided bone regeneration
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The Role of Leukocyte and Platelet-Rich Fibrin in Enhancing the Healing of Extraction Sockets: An Overview of the Literature
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作者 Yazan Alawneh Mahmoud Abu-Ta’a 《Open Journal of Stomatology》 2023年第3期97-105,共20页
Introduction: Leukocyte and platelet-rich fibrin (L-PRF) is an emerging material in dentistry, however, there are controversies surrounding its effectiveness. Despite the amount of literature available, debates regard... Introduction: Leukocyte and platelet-rich fibrin (L-PRF) is an emerging material in dentistry, however, there are controversies surrounding its effectiveness. Despite the amount of literature available, debates regarding its effect continue. This review aims to summarize and clarify the data surrounding the use of L-PRF in promoting the healing of extraction sockets, which may offer a better outcome for future treatments. Purpose: The purpose of this review is to evaluate the current literature on the use of L-PRF in promoting the healing of extraction sockets, and to provide a comprehensive overview of the available evidence. Methods: A comprehensive computer-based search of databases such as PubMed, Medline, and Cochrane Library was conducted. Results: The results of this review suggest that L-PRF has shown promise in promoting early healing of extraction sockets, but the evidence for its effectiveness over a longer period is limited. Conclusion: Although L-PRF has shown promising results in the early healing periods, its effectiveness over a longer healing period cannot be confirmed based on the available data. More clinical trials with standardized protocols and consistent measurement methods are needed to establish the role of L-PRF in enhancing the healing of extraction sockets. 展开更多
关键词 Leukocyte and platelet rich fibrin Extraction Sockets Hard Tissue Soft Tissue
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Evaluating the Benefits of Platelet Rich-Fibrin in Periodontal Regeneration: A Literature Review
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作者 Hadeel Albahar Mahmoud Abu-Ta’a 《Open Journal of Stomatology》 2023年第3期106-115,共20页
Introduction: Platelet Rich-Fibrin (PRF) is a biological matrix derived from a patient’s own blood, rich in growth factors and platelets. Its use in various periodontal and non-periodontal procedures is gaining recog... Introduction: Platelet Rich-Fibrin (PRF) is a biological matrix derived from a patient’s own blood, rich in growth factors and platelets. Its use in various periodontal and non-periodontal procedures is gaining recognition due to its potential in promoting tissue regeneration. The purpose of this review was to evaluate the benefits of using PRF in intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Methods: The study searched PubMed for manuscripts published between 2017 and 2022 to better understand the clinical and radiological effects of PRF. The manuscripts were divided into the following sections: intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Results: In intra-bony defects, PRF improved clinical and radiological parameters when compared with OFD alone, with a significant difference in wound healing at 7 days. In GBR, a CBCT evaluation shows no statistical difference between the PRF-autogenous bone complex group and the bovine bone-collagen membrane complex regarding volume change of the augmented bone with a 16% rate of bone loss following a 6-month healing period. Also, a slight increase in bone thickness has been seen when liquid PRF is used. In sinus floor elevation, results revealed no differences in graft volume between PRF group and control group at any of the evaluated time points. Although higher implant stability immediately postoperatively, higher new bone formation, the lesser amount of residual graft and earlier implant placement. Conclusion: Platelet Rich-Fibrin is widely accepted for use in periodontal surgery and dentistry due to its minimally invasive nature and low risk of adverse effects, with positive results in tissue regeneration. There is evidence that PRF leads to improved and faster healing, as well as cost-effective regenerative procedures compared to other treatments. 展开更多
关键词 Intra-Bony Defect Sinus Floor Elevation platelet-rich fibrin Guided Tissue Regeneration
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WHBE兔膝骨关节炎模型的建立与PRFr的干预研究
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作者 黄俊杰 陈民利 +4 位作者 朱科燕 江劲翱 张静惠 蒋超 潘永明 《中国比较医学杂志》 CAS 北大核心 2024年第5期65-73,共9页
目的采用内侧副韧带和部分髌韧带切除术建立WHBE兔KOA模型并用富血小板纤维蛋白释放液(PRFr)干预,探讨WHBE兔KOA模型软骨损伤和炎症的机制以及PRFr干预疗效。方法取WHBE兔24只,随机分成3组,即对照(NC)组(n=6)、模型(KOA)组(n=12)和治疗(... 目的采用内侧副韧带和部分髌韧带切除术建立WHBE兔KOA模型并用富血小板纤维蛋白释放液(PRFr)干预,探讨WHBE兔KOA模型软骨损伤和炎症的机制以及PRFr干预疗效。方法取WHBE兔24只,随机分成3组,即对照(NC)组(n=6)、模型(KOA)组(n=12)和治疗(PRFr)组(n=6);其中KOA组和PRFr组分别于术后第7天和第14天时向两侧关节腔内注射生理盐水和PRFr 0.5 mL。造模4、8周时,各组动物进行行为学评分、X线影像学观察,并取血清进行ELISA检测IL-1β、TNF-α、MMP-13水平,4周时KOA组处理6只,8周时处理各组剩余动物,取兔双侧膝关节,进行大体评分,脱钙后行病理切片制作,然后进行HE染色、甲苯胺蓝染色和番红O固绿染色以及TGF-β、BMP3和NF-κB免疫组化表达检测。结果与NC组比,造模后WHBE兔Lequesne MG行为学评分,Mankin’s评分,Pelletier评分均显著升高(P<0.01),可见膝关节肿胀明显、关节疼痛刺激和活动受限明显,且X光显示软组织呈高密度阴影,关节积液较多,解剖观察显示关节面粗糙,病理观察显示软骨表面缺损,软骨细胞丢失或部分丢失,表明WHBE兔KOA模型成立。与KOA组比较,PRFr干预治疗后血清炎症水平(IL-1β、TNF-α、MMP-13)均显著降低(P<0.05,P<0.01),软骨表面粗糙程度低,大部分软骨细胞分布整齐;同时TGF-β、BMP3和NF-κB表达水平亦显著降低(P<0.01)。结论本研究成功建立了WHBE兔KOA模型,且PRFr可通过TGF-β/BMP和NF-κB途径改善WHBE兔KOA模型软骨损伤和炎症。 展开更多
关键词 WHBE兔 膝骨关节炎 富血小板纤维蛋白释放液 NF-ΚB
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自体脂肪颗粒联合PRF移植填充矫治面部凹陷的效果及PRF对移植脂肪成活率的影响
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作者 彭梦龙 冯先才 王荣 《中国美容医学》 CAS 2024年第3期45-48,共4页
目的:研究自体脂肪颗粒联合富血小板纤维蛋白(Platelet-rich fibrin,PRF)移植填充矫治面部凹陷的效果及PRF对移植脂肪成活率的影响。方法:选取2019年3月-2021年12月在笔者医院择期行脂肪颗粒移植填充手术的120例面部凹陷女性就医者,按... 目的:研究自体脂肪颗粒联合富血小板纤维蛋白(Platelet-rich fibrin,PRF)移植填充矫治面部凹陷的效果及PRF对移植脂肪成活率的影响。方法:选取2019年3月-2021年12月在笔者医院择期行脂肪颗粒移植填充手术的120例面部凹陷女性就医者,按照随机分组原则分为观察组和对照组,每组60例。两组均采取脂肪颗粒移植手术,观察组在移植自体脂肪颗手术基础上联合富血小板纤维蛋白治疗。术后6个月,比较两组移植脂肪的成活率及治疗效果。结果:观察组移植成活率显著高于对照组(P<0.05),且观察组治疗效果显著优于对照组(P<0.05);两组血肿情况、局部感染情况、坏死、脂肪液化、破溃、纤维囊肿发生情况比较,差异无统计学意义(P>0.05)。结论:自体脂肪颗粒移植联合PRF在面部凹陷填充中疗效确切,不仅提升了脂肪移植成活率,而且改善了面部凹陷情况,值得临床推广应用。 展开更多
关键词 自体脂肪颗粒移植 移植成活率 富血小板纤维蛋白 面部凹陷 填充
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A-PRF促进兔膝关节骨软骨损伤愈合的观察
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作者 朱泽宇 吕成奇 +3 位作者 刘旭凌 陈昱璐 邹德荣 陆家瑜 《上海交通大学学报(医学版)》 CAS CSCD 北大核心 2024年第1期13-22,共10页
目的·探讨改良型富血小板纤维蛋白(advanced platelet-rich fibrin,A-PRF)在骨软骨再生中的作用。方法·获取新西兰兔骨髓间充质干细胞(bone-marrow mesenchymal stem cells,BMSCs)和膝关节软骨细胞;通过低速离心兔心脏血液获... 目的·探讨改良型富血小板纤维蛋白(advanced platelet-rich fibrin,A-PRF)在骨软骨再生中的作用。方法·获取新西兰兔骨髓间充质干细胞(bone-marrow mesenchymal stem cells,BMSCs)和膝关节软骨细胞;通过低速离心兔心脏血液获得A-PRF。采用光学显微镜观察A-PRF的组织学结构;ELISA法检测A-PRF中生长因子,包括血小板衍生生长因子、转化生长因子-β、胰岛素样生长因子、血管内皮生长因子、表皮生长因子和成纤维细胞生长因子的释放;采用活/死细胞双染法及MTT法检测A-PRF对兔BMSCs细胞毒性及增殖情况的影响;采用实时荧光定量聚合酶链反应(qRT-PCR)检测A-PRF对兔BMSCsⅡ型胶原蛋白、聚集蛋白聚糖、碱性磷酸酶(ALP)和骨钙素(OCN)基因表达的影响;使用transwell小室测定A-PRF对于兔BMSCs以及软骨细胞迁移能力的影响。建立兔膝关节骨软骨缺损模型,将18只兔随机分为3组:A-PRF组(n=6)在缺损处植入A-PRF;A-PRF+BMSCs组(n=6)植入接种兔BMSCs的A-PRF;对照组(n=6)不进行植入操作。术后12周处死兔,采用苏木精-伊红(H-E)、甲苯胺蓝和番红O-固绿染色进行膝关节标本的组织学观察,并根据膝关节的表面形态学与组织学情况,采用国际软骨修复协会(International Cartilage Repair Society,ICRS)评分系统进行宏观与组织学评分。结果·A-PRF具有松散的网络结构,可以缓慢释放生长因子。加入A-PRF后,未观察到其对兔BMSCs具有细胞毒性;在加入A-PRF后24、48和72 h,BMSCs的增殖能力均明显升高(均P<0.05),成软骨相关基因Ⅱ型胶原蛋白、聚集蛋白聚糖,以及成骨相关基因ALP和OCN均显著上调(均P<0.05)。加入A-PRF后,兔BMSCs与软骨细胞的迁移能力均显著增强(均P<0.05),且兔BMSCs的迁移能力显著高于软骨细胞(P=0.025)。在兔膝关节缺损模型中,观察关节表面形态,可见A-PRF组和A-PRF+BMSCs组缺损均基本恢复,而对照组仅有软组织覆盖。在ICRS宏观评分方面,A-PRF组与A-PRF+BMSCs组的差异无统计学意义,但2组评分均显著高于对照组(均P<0.05)。组织学观察显示,A-PRF组和A-PRF+BMSCs组均产生骨软骨修复,但A-PRF组软骨更加成熟,对照组则形成纤维修复。在ICRS组织学评分方面,A-PRF组与A-PRF+BMSCs组的差异无统计学意义,但2组评分均显著高于对照组(均P<0.05)。结论·自体A-PRF具有良好的生物相容性和促进BMSCs增殖的能力,在体外和体内均可促进软骨和软骨下骨的修复。 展开更多
关键词 骨软骨损伤 改良型富血小板纤维蛋白 生长因子 硬组织再生
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自体牙本质颗粒联合PRF在拔牙位点保存术中的应用1例
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作者 梁韩莹 仲维剑 马国武 《实用口腔医学杂志》 CAS CSCD 北大核心 2024年第1期128-130,共3页
报告1例利用未脱矿的自体牙本质颗粒(UADP)联合自体血液浓缩物富血小板纤维蛋白(PRF),为左下颌第二磨牙进行拔牙位点保存术,术后3、 9、 24个月的CBCT显示骨量维持效果明显。组织学切片可见牙本质颗粒周围有大量新生骨形成。
关键词 位点保存术 自体牙本质颗粒 富血小板纤维蛋白
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Platelet-rich fibrin-induced bone marrow mesenchymal stem cell differentiation into osteoblast-like cells and neural cells 被引量:12
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作者 Qi Li Yajun Geng +3 位作者 Lei Lu Tingting Yang Mingrui Zhang Yanmin Zhou 《Neural Regeneration Research》 SCIE CAS CSCD 2011年第31期2419-2423,共5页
Bone marrow mesenchymal stem cells were allowed to develop for 14 days in a platelet-rich fibrin environment.Results demonstrated that platelet-rich fibrin significantly promoted bone marrow mesenchymal stem cell prol... Bone marrow mesenchymal stem cells were allowed to develop for 14 days in a platelet-rich fibrin environment.Results demonstrated that platelet-rich fibrin significantly promoted bone marrow mesenchymal stem cell proliferation.In addition,there was a dose-dependent increase in Runt-related transcription factor-2 and bone morphogenetic protein-2 mRNA expression,as well as neuron-specific enolase and glial acidic protein.Results showed that platelet-rich fibrin promoted bone marrow mesenchymal stem cell proliferation and differentiation of osteoblast-like cells and neural cells in a dose-dependent manner. 展开更多
关键词 alkaline phosphatase bone marrow mesenchymal stem cells glial fibrillary acidic protein neural regeneration neuron-specific enolase platelet-rich fibrin
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Flapless immediate implant placement into fresh molar extraction socket using platelet-rich fibrin: A case report 被引量:2
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作者 Xiao-Lin Sun Mahmoud Mudalal +4 位作者 Man-Lin Qi Yue Sun Liu-Yi Du Zhan-Qi Wang Yan-Min Zhou 《World Journal of Clinical Cases》 SCIE 2019年第19期3153-3159,共7页
BACKGROUND There are some challenges concerning immediate implant placement in the molar region.Platelet-rich fibrin(PRF),an autologous biomaterial,has been used widely for periodontal intra-bony defects,sinus augment... BACKGROUND There are some challenges concerning immediate implant placement in the molar region.Platelet-rich fibrin(PRF),an autologous biomaterial,has been used widely for periodontal intra-bony defects,sinus augmentation,socket preservation,and gingival recession.However,the literature remains scarce for reports on immediate implants with PRF,particularly in the case of fresh molar extraction socket.CASE SUMMARY The patient was a 43-year-old woman with maxillary molar vertical crown-root fracture.She underwent flapless immediate implant placement into the fresh molar socket with PRF.At the follow-up visit 15 d post procedure,the vascularization of soft tissue was visible.There was no swelling or pain after the surgery.Six months postoperatively,the regeneration of bone and soft tissues was visible.Subsequently,the definitive restoration was placed.The patient was satisfied with the aesthetic outcomes.CONCLUSION The flapless immediate implant placement into the fresh molar socket with PRF is a feasible procedure.This case report demonstrates that PRF promotes bone and soft tissue regeneration apart from having an enhanced anti-inflammatory ability.Furthermore,the procedure involves a minimally invasive technique,thus reducing the surgical complexity. 展开更多
关键词 IMMEDIATE implant placement platelet-rich fibrin MOLAR TOOTH Bone augmentation Soft tissue regeneration Case report
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Early therapeutic effect of platelet-rich fibrin combined with allogeneic bone marrow-derived stem cells on rats’ critical-sized mandibular defects 被引量:4
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作者 Muhammad A Awadeen Fouad A Al-Belasy +2 位作者 Laila E Ameen Mohamad E Helal Mohammed E Grawish 《World Journal of Stem Cells》 SCIE 2020年第1期55-69,共15页
BACKGROUND Critically sized bone defects represent a significant challenge to orthopaedic surgeons worldwide.These defects generally result from severe trauma or resection of a whole large tumour.Autologous bone graft... BACKGROUND Critically sized bone defects represent a significant challenge to orthopaedic surgeons worldwide.These defects generally result from severe trauma or resection of a whole large tumour.Autologous bone grafts are the current gold standard for the reconstruction of such defects.However,due to increased patient morbidity and the need for a second operative site,other lines of treatment should be introduced.To find alternative unconventional therapies to manage such defects,bone tissue engineering using a combination of suitable bioactive factors,cells,and biocompatible scaffolds offers a promising new approach for bone regeneration.AIM To evaluate the healing capacity of platelet-rich fibrin(PRF)membranes seeded with allogeneic mesenchymal bone marrow-derived stem cells(BMSCs)on critically sized mandibular defects in a rat model.METHODS Sixty-three Sprague Dawley rats were subjected to bilateral bone defects of critical size in the mandibles created by a 5-mm diameter trephine bur.Rats were allocated to three equal groups of 21 rats each.Group I bone defects were irrigated with normal saline and designed as negative controls.Defects of group II were grafted with PRF membranes and served as positive controls,while defects of group III were grafted with PRF membranes seeded with allogeneic BMSCs.Seven rats from each group were killed at 1,2 and 4 wk.The mandibles were dissected and prepared for routine haematoxylin and eosin(HE)staining,Masson's trichrome staining and CD68 immunohistochemical staining.RESULTS Four weeks postoperatively,the percentage area of newly formed bone was significantly higher in group III(0.88±0.02)than in groups I(0.02±0.00)and II(0.60±0.02).The amount of granulation tissue formation was lower in group III(0.12±0.02)than in groups I(0.20±0.02)and II(0.40±0.02).The number of inflammatory cells was lower in group III(0.29±0.03)than in groups I(4.82±0.08)and II(3.09±0.07).CONCLUSION Bone regenerative quality of critically sized mandibular bone defects in rats was better promoted by PRF membranes seeded with BMSCs than with PRF membranes alone. 展开更多
关键词 platelet-rich fibrin membrane Bone marrow-derived stem cells Critical-sized mandibular defects RATS Histological and immunohistochemical staining
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Autologous Adipose-Derived Mesenchymal Stem Cells Embedded in Platelet-Rich Fibrin in Diabetic Foot Ulcers 被引量:1
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作者 Charbel Khalil Diana Chaker +7 位作者 Rawad Salameh Yvonne-Elise Germanos Elie El Kayem Fady Nader Jessica Habbouche Rodrigue Chemaly Albert Azar Ahmad Ibrahim 《Open Journal of Regenerative Medicine》 2021年第2期19-30,共12页
<b>Context and Aim:</b> Mesenchymal stem cells (MSCs) and platelet-rich fibrin (PRF) have emerged as ideal candidates for advanced therapies of various therapeutically-challenging diseases;however, their r... <b>Context and Aim:</b> Mesenchymal stem cells (MSCs) and platelet-rich fibrin (PRF) have emerged as ideal candidates for advanced therapies of various therapeutically-challenging diseases;however, their regenerative potential in diabetic foot ulcers (DFU) has not been well determined. In this study, we reviewed our clinical experience in mitigating chronic ulcer complications of diabetic foot through a conventional treatment of autologous adipose-derived MSCs embedded in PRF with pure PRF injections. <b>Materials and Methods:</b> The present study was carried out in 10 patients with an open DFU wound selected over a period of 1 year starting from April 2019. Patients were either injected with PRF alone (Group A) or injected with MSCs derived from adipose tissue (ADMSC) embedded in (PRF (Group B). <b>Results:</b> Patients in Group B had a better healing index when compared to Group A. <b>Conclusion:</b> Use of ADMSC embedded in PRF showed promising results to treat DFU. 展开更多
关键词 Diabetic Foot Ulcer DIABETES Mesenchymal Stem Cells Adipose Tissue platelet rich fibrin
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预成型钛网联合胶原膜及PRF在前牙牙槽嵴严重骨缺损种植中的应用
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作者 吕晔 李泓运 陈青 《中国美容医学》 CAS 2024年第9期126-129,共4页
目的:分析预成型钛网联合胶原膜及富血小板纤维蛋白(Platelet-rich fibrin,PRF)在前牙牙槽嵴严重骨缺损种植中的应用效果。方法:选取2021年1月-2021年12月青岛市市立医院西院区收治的202例前牙牙槽嵴严重骨缺损患者,按随机数字表法分为... 目的:分析预成型钛网联合胶原膜及富血小板纤维蛋白(Platelet-rich fibrin,PRF)在前牙牙槽嵴严重骨缺损种植中的应用效果。方法:选取2021年1月-2021年12月青岛市市立医院西院区收治的202例前牙牙槽嵴严重骨缺损患者,按随机数字表法分为两组。对照组101例,采用预成型钛网联合胶原膜治疗;观察组101例,采用预成型钛网联合胶原膜及PRF治疗。比较两组治疗后不同时间点牙槽骨形态变化、牙周指标、美学指标及并发症发生情况。结果:治疗后6个月、12个月,观察组牙槽骨量体积增加值、高度增加值及宽度增加值均高于对照组(P<0.05);种植修复后6个月,两组种植体周围菌斑指数(Plaque index,PLI)、牙龈指数(Gingival index,GI)及探诊深度(Probing depth,PD)比较,差异无统计学意义(P>0.05);治疗后6个月,观察组红色美学指数(Pink ethetic score,PES)高于对照组(P<0.05),治疗后12个月,两组PES评分比较差异无统计学意义(P>0.05);两组并发症发生率比较,差异无统计学意义(P>0.05)。结论:预成型钛网联合胶原膜及PRF在前牙牙槽嵴严重骨缺损种植中的应用效果确切,能促进牙槽骨形成,提供稳定的种植体环境,提高美学效果,安全性良好。 展开更多
关键词 前牙牙槽嵴 严重骨缺损 预成型钛网 胶原膜 富血小板纤维蛋白
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PRF联合GTR治疗牙周牙髓联合病变的临床价值
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作者 陈颖 岳二丽 +1 位作者 李蓓蕾 王云燕 《海南医学》 CAS 2024年第6期834-838,共5页
目的观察富血小板纤维蛋白(PRF)联合引导组织再生术(GTR)治疗牙周牙髓联合病变的疗效,并探讨其对患者牙周状况、炎症因子和组织再生指标的影响。方法将2020年9月至2022年9月郑州大学第一附属医院收治的190例牙周牙髓联合病变患者按电脑... 目的观察富血小板纤维蛋白(PRF)联合引导组织再生术(GTR)治疗牙周牙髓联合病变的疗效,并探讨其对患者牙周状况、炎症因子和组织再生指标的影响。方法将2020年9月至2022年9月郑州大学第一附属医院收治的190例牙周牙髓联合病变患者按电脑随机数表法分为GTR组和联合组,每组95例。两组患者均予以常规治疗,在此基础上,GTR组予以GTR治疗,联合组予以PRF+GTR治疗。治疗2个月后评估两组患者临床疗效,比较两组患者治疗前、治疗1个月后和治疗2个月后的龈沟液炎症因子[白细胞介素-1(IL-1)、白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)]、组织再生指标[骨形态发生蛋白-2(BMP-2)、转化生长因子-β1(TGF-β1)、血管内皮生长因子(VEGF)]水平,比较两组治疗前、治疗6个月后和治疗12个月后的患牙探诊深度(PD)、附着丧失水平(AL)、牙龈退缩松动度(GR)、出血指数(BI)、牙槽骨密度、牙周袋深度,同时比较两组患者的不良反应发生情况。结果联合组患者的治疗总有效率为95.79%,明显高于GTR组的86.32%,差异有统计学意义(P<0.05);治疗1个月和2个月后,联合组患者的IL-1、IL-6和TNF-α水平明显低于GTR组,差异均有统计学意义(P<0.05);治疗1个月和2个月后,联合组患者的BMP-2、TGF-β1和VEGF水平明显高于GTR组,差异均有统计学意义(P<0.05);治疗6个月和12个月后,联合组患者的AL、PD、BI和牙周袋深度明显低于GTR组,而GR和牙槽骨密度明显高于GTR组,差异均有统计学意义(P<0.05);术后门诊随访3个月,两组患者均未见其他不良反应。结论PRF联合GTR治疗牙周牙髓联合病变可减轻炎症反应,改善牙周状况,提高牙槽骨密度,降低牙周袋深度,促进牙髓组织再生,其疗效确切且安全性较高。 展开更多
关键词 牙周牙髓联合病变 富血小板纤维蛋白 引导组织再生术 炎症因子 疗效 牙周状况 牙髓组织
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PRF结合MTA材料支架在龋病性年轻恒牙再生性牙髓治疗中的应用
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作者 付航宇 张洁 +1 位作者 朱惠芳 贾靖 《河南医学研究》 CAS 2024年第15期2782-2785,共4页
目的探讨富血小板纤维蛋白(PRF)结合矿物三氧化物凝聚体(MTA)支架在龋病性年轻恒牙再生性牙髓治疗中的应用价值。方法选取2020年1月至2021年10月在濮阳市第三人民医院治疗的龋病性年轻恒牙再生性牙髓患儿86例,采用随机数字表法将患儿分... 目的探讨富血小板纤维蛋白(PRF)结合矿物三氧化物凝聚体(MTA)支架在龋病性年轻恒牙再生性牙髓治疗中的应用价值。方法选取2020年1月至2021年10月在濮阳市第三人民医院治疗的龋病性年轻恒牙再生性牙髓患儿86例,采用随机数字表法将患儿分为观察组(43例,50颗)和对照组(43例,52颗),给予观察组PRF结合MTA材料支架治疗,给予对照组iRoot BP Plus支架治疗,观察两组治疗疗效、根管长度、根管壁厚度、患牙恢复情况等。结果观察组治疗效果优于对照组(P<0.05)。与治疗前比较,观察组和对照组治疗后根管长度和根管壁厚度增加(P<0.05);治疗后根管长度和根管壁厚度比较,观察组高于对照组(P<0.05)。观察组牙体色泽正常、萌出高度增加、根尖孔封闭、牙髓活力正常比例高于对照组(P<0.05)。与治疗前比较,观察组和对照组治疗后咬合力和咀嚼效率升高(P<0.05);治疗后两组咬合力和咀嚼效率比较,观察组高于对照组(P<0.05)。结论PRF结合MTA材料支架在龋病性年轻恒牙再生性牙髓治疗中有较好的效果,可帮助改善患儿根管长度、根管壁厚度及患牙恢复情况,治疗后患儿具有良好的咬合力和咀嚼效率,值得临床使用。 展开更多
关键词 富血小板纤维蛋白 矿物三氧化物凝聚体 龋病 年轻恒牙 再生性牙髓治疗
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APRF和CGF提高行上颌窦外提升种植术患者成骨能力的作用研究
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作者 曹白雨 林毅 《医学理论与实践》 2023年第16期2723-2726,共4页
目的:研究浓缩生长因子(CGF)和改良富血小板纤维蛋白(APRF)对进行上颌窦外提升种植术患者成骨能力的影响。方法:选择2021年1月—2022年1月到我院进行诊治的上颌磨牙缺失、进行上颌窦外提升种植术且RBH在2~4mm之间的患者20例,随机分为APR... 目的:研究浓缩生长因子(CGF)和改良富血小板纤维蛋白(APRF)对进行上颌窦外提升种植术患者成骨能力的影响。方法:选择2021年1月—2022年1月到我院进行诊治的上颌磨牙缺失、进行上颌窦外提升种植术且RBH在2~4mm之间的患者20例,随机分为APRF组和CGF组,每组10例。两组患者均进行上颌窦外提升种植术,APRF组患者将APRF层剪碎混合Bio-Oss骨粉填入提升后的上颌窦窦底和上颌窦黏膜的骨板之间,CGF组患者将CGF层剪碎混合Bio-Oss骨粉填入提升后的上颌窦窦底和上颌窦黏膜的骨板之间。对患者的骨密度值(HU)、种植体边缘骨水平变化和存留率进行表征。结果:治疗前,APRF组和CGF组患者的骨密度值相似(P>0.05);术后2个月,两组植骨区骨密度值相对治疗前有明显升高(P<0.05);术后4个月,CGF组密度值高于APRF组,其中APRF组骨密度接近术前骨密度值(P>0.05);术后6个月,两组骨密度值相似(P>0.05),且APRF组与术前基本一致(P>0.05)。APRF组有1例患者种植体在2期修复时出现松动进行拔除,其余患者种植体均成功,APRF组种植体存留率为90%,CGF组种植体存留率为100%。术后2个月,两组患者种植体近中和远中边缘骨水平相似(P>0.05);术后4个月和6个月,APRF组患者种植体近远中边缘骨水平小于CGF组(P<0.05)。术后即刻,两组患者骨高度相似(P>0.05);术后2个月和4个月,APRF组患者的骨高度低于CGF组(P<0.05);但术后6个月,两组患者的骨高度基本一致(P>0.05)。术后2个月和4个月,CGF组患者的ISQ优于APRF组(P<0.05);但术后6个月,两组患者的ISQ基本一致(P>0.05)。结论:APRF和CGF应用于上颌窦外种植提升术患者均具有较好的成骨能力,其中CGF效果优于APRF。 展开更多
关键词 牙槽骨高度 上颌窦外提升种植术 浓缩生长因子 改良富血小板纤维蛋白
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A-PRF联合Bio-Oss对种植体周围骨缺损的修复效果实验研究 被引量:2
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作者 黄仙波 何志良 +7 位作者 曹雷 贺成功 马慧颖 李燕波 李士辉 李春佳 张艳波 田茜 《临床误诊误治》 CAS 2023年第4期136-141,共6页
目的探讨改良型富血小板纤维蛋白(A-PRF)联合Bio-Oss对种植体周围骨缺损的修复效果。方法12只新西兰大白兔建立下颌骨缺损模型,在每只大白兔双侧下颌骨制备6个骨缺损孔,并分别植入A-PRF与Bio-Oss骨粉2∶1混合物(A组)、1∶1混合物(B组)、... 目的探讨改良型富血小板纤维蛋白(A-PRF)联合Bio-Oss对种植体周围骨缺损的修复效果。方法12只新西兰大白兔建立下颌骨缺损模型,在每只大白兔双侧下颌骨制备6个骨缺损孔,并分别植入A-PRF与Bio-Oss骨粉2∶1混合物(A组)、1∶1混合物(B组)、1∶2混合物(C组)、空白对照(D组)、单独植入A-PRF(E组)、单独植入Bio-Oss骨粉(F组),于植入后4、8、12周处死动物,行大体观察、影像学及组织学观察,并对成骨效果进行分析。结果术后4周,D组可见纤维结缔组织围绕,A组、E组骨质完全覆盖螺纹钉,其余3组出现不同程度骨质覆盖,术后8、12周相同部位种植体表面骨质覆盖增厚。术后4、8、12周骨体积分数A组>E组>B组>C组>F组>D组(P<0.05)。术后4周,A组有新生血管、骨基质形成,骨小梁钙化良好,有大量新骨形成;术后8、12周,A组骨小梁融合成岛状,可见不同程度的板状骨。术后4、8、12周骨形成率A组>E组>B组>C组>F组>D组(P<0.05)。结论A-PRF与Bio-Oss混合物具有良好骨缺损修复效果,A-PRF与Bio-Oss 2∶1混合物成骨效果更佳,可提高种植体骨愈合能力。 展开更多
关键词 改良型富血小板纤维蛋白 BIO-OSS 下颌骨 骨缺损 牙种植体 修复 骨体积分数 骨生成
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PRF在上颌窦底提升术中的应用效果及对种植体稳定系数的影响 被引量:3
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作者 张晓浩 王晓飞 王珏 《中国美容医学》 CAS 2023年第2期120-123,共4页
目的:探讨富血小板纤维蛋白(Platelet-rich fibrin,PRF)在凹面型上颌窦底形态患者行上颌窦底提升术(Maxillary sinus lifting,MSL)中的效果。方法:选取2018年3月-2021年3月在笔者医院行MSL的92例患者为研究对象,随机分为对照组和研究组... 目的:探讨富血小板纤维蛋白(Platelet-rich fibrin,PRF)在凹面型上颌窦底形态患者行上颌窦底提升术(Maxillary sinus lifting,MSL)中的效果。方法:选取2018年3月-2021年3月在笔者医院行MSL的92例患者为研究对象,随机分为对照组和研究组,每组46例。对照组给予常规MSL术,研究组在对照组基础上加用PRF。术后,观察两组的自觉症状、骨水平、创口愈合情况及种植体稳定系数(Implant stability quotient,ISQ)及并发症情况。结果:治疗后,研究组的自觉症状评分低于对照组(P<0.05),研究组的骨高度、骨宽度、术后1个月ISQ值、创口愈合情况均优于对照组(P<0.05),差异均有统计学意义。两组术后6个月ISQ值、并发症总发生率比较,差异无统计学意义(P>0.05)。结论:PRF应用于MSL术中具有良好的效果,能够促进骨组织生成,加速创口愈合,维持种植体的稳定,且安全性高。 展开更多
关键词 上颌窦底提升术 凹面型 富血小板纤维蛋白 种植体稳定系数 创口愈合
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Platelet-rich plasma gel in combination with Schwann cells for repair of sciatic nerve injury 被引量:11
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作者 Fagang Ye Haiyan Li Guangxi Qiao Feng Chen Hao Tao Aiyu Ji Yanling Hu 《Neural Regeneration Research》 SCIE CAS CSCD 2012年第29期2286-2292,共7页
Bone marrow mesenchymal stem cells were isolated from New Zealand white rabbits, culture-expanded and differentiated into Schwann cell-like cells. Autologous platelet-dch plasma and Schwann cell-like cells were mixed ... Bone marrow mesenchymal stem cells were isolated from New Zealand white rabbits, culture-expanded and differentiated into Schwann cell-like cells. Autologous platelet-dch plasma and Schwann cell-like cells were mixed in suspension at a density of 1 x 106 cells/mL, prior to introduction into a poly (lactic-co-glycolic acid) conduit. Fabricated tissue-engineered nerves were implanted into rabbits to bridge 10 mm sciatic nerve defects (platelet-rich plasma group). Controls were established using fibrin as the seeding matrix for Schwann cell-like cells at identical density to construct tissue-engineered nerves (fibrin group). Twelve weeks after implantation, toluidine blue staining and scanning electron microscopy were used to demonstrate an increase in the number of regenerating nerve fibers and thickness of the myelin sheath in the platelet-rich plasma group compared with the fibrin group. Fluoro-gold retrograde labeling revealed that the number of Fluoro-gold-positive neurons in the dorsal root ganglion and the spinal cord anterior horn was greater in the platelet-rich plasma group than in the fibrin group. Electrophysiological examination confirmed that compound muscle action potential and nerve conduction velocity were superior in the platelet-rich plasma group compared with the fibrin group. These results indicate that autologous platelet-rich plasma gel can effectively serve as a seeding matrix for Schwann cell-like cells to construct tissue-engineered nerves to promote perJpheral nerve regeneration. 展开更多
关键词 platelet-rich plasma extracellular matrix Schwann cells fibrin sciatic nerve peripheral nerve injury nerve tissue engineering neural regeneration
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Platelet-rich plasma,an adjuvant biological therapy to assist peripheral nerve repair 被引量:12
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作者 Mikel Sánchez Ane Garate +1 位作者 Diego Delgado Sabino Padilla 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第1期47-52,共6页
Therapies such as direct tension-free microsurgical repair or transplantation of a nerve autograft,are nowadays used to treat traumatic peripheral nerve injuries(PNI),focused on the enhancement of the intrinsic rege... Therapies such as direct tension-free microsurgical repair or transplantation of a nerve autograft,are nowadays used to treat traumatic peripheral nerve injuries(PNI),focused on the enhancement of the intrinsic regenerative potential of injured axons.However,these therapies fail to recreate the suitable cellular and molecular microenvironment of peripheral nerve repair and in some cases,the functional recovery of nerve injuries is incomplete.Thus,new biomedical engineering strategies based on tissue engineering approaches through molecular intervention and scaffolding offer promising outcomes on the field.In this sense,evidence is accumulating in both,preclinical and clinical settings,indicating that platelet-rich plasma products,and fibrin scaffold obtained from this technology,hold an important therapeutic potential as a neuroprotective,neurogenic and neuroinflammatory therapeutic modulator system,as well as enhancing the sensory and motor functional nerve muscle unit recovery. 展开更多
关键词 peripheral nerve injuries(PNI) Schwann cells axons platelet-rich plasma biomolecules fibrin scaffold intraneural perineural microenvironment
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3D打印的PU支架复合CA以及PRF促进软骨再生的研究 被引量:3
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作者 杨梦琪 全雅琦 +1 位作者 曾子瑜 王忠山 《实用口腔医学杂志》 CAS CSCD 北大核心 2023年第5期562-569,共8页
目的:研究3D打印聚氨酯(PU)材料复合体外诱导的软骨细胞聚集体(CA)以及富血小板纤维蛋白(PRF)促进软骨再生的效果。方法:运用熔融沉积技术(FDM)将PU材料快速成型为15 mm×15 mm×5 mm的多孔支架试件,孔径400μm,孔隙率60%;分离... 目的:研究3D打印聚氨酯(PU)材料复合体外诱导的软骨细胞聚集体(CA)以及富血小板纤维蛋白(PRF)促进软骨再生的效果。方法:运用熔融沉积技术(FDM)将PU材料快速成型为15 mm×15 mm×5 mm的多孔支架试件,孔径400μm,孔隙率60%;分离培养1月龄新西兰大白兔耳廓软骨细胞,将第3代软骨细胞在富含维生素C的培养基中诱导10 d,形成CA,qPCR检测Aggrecan、Collagen Ⅱ、Sox9的mRNA的相对表达量;每抽取10 m L兔耳中央动脉血,即刻高速离心制备1单位的PRF,细胞计数法检测PRF对软骨细胞增殖的影响,q-PCR检测PRF与软骨细胞共培养后上述软骨表型相关基因的表达变化。将PU支架与CA、PRF复合后移植入裸鼠背部皮下,8周后取出,硬组织切片染色检测新生软骨情况。结果:软骨细胞与PRF共培养后,Aggrecan、Collagen Ⅱ、Sox9的mRNA均呈现较高的表达(P<0.05)。1/8、1/4、1/2 PRF均促进了软骨细胞的增殖,不同剂量间比较,P>0.05。异位移植结果表明:实验组硬组织切片可见大量成熟的软骨陷窝样结构形成,与支架紧密结合,而对照组软骨陷窝样结构形成较少,可见大量的纤维结缔组织形成。结论:3D打印的PU支架可精确维持新生软骨外形,CA以及PRF的联合应用有利于软骨细胞的增殖和软骨表型维持。 展开更多
关键词 聚氨酯支架 软骨细胞聚集体 富血小板纤维蛋白 3D打印
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