喷砂酸蚀对钛铌锆锡合金表面成骨细胞粘附、增殖和分化的影响

目的:研究喷砂酸蚀(SLA)对钛及钛铌锆锡合金(Ti-24Nb-4Zr-7.9Sn,TNZS)表面形貌的影响,观察合金的形貌学特征,评价其生物相容性。方法:将试样分为钛机械打磨并抛光组(Ti组),钛铌锆锡机械打磨并抛光组(TNZS组),钛喷砂酸蚀组(Ti-SLA组)和钛铌锆锡喷砂酸蚀组(TNZS-SLA组),共4组。通过扫描电镜观察各组试样的表面形貌,3D激光共聚焦显微镜和接触角测量仪测量各组试样表面的粗糙度与亲水性。接种MC3T3-E1小鼠前成骨细胞于各组试样表面,检测细胞在试样表面的粘附、增殖与矿化的能力,评估其生物相容性。结果:SLA处理后在材料表面形成纳米级及微米级的凹坑,产生均匀分布的粗糙结构,经过处理后材料仍保持亲水性。细胞在TNZS组上短期粘附明显高于其它组(P<0.05),TNZS-SLA组细胞增殖、分化能力均明显高于其它组(P<0.05)。结论:喷砂酸蚀后材料表面相对于光滑材料表面能更有效的促进成骨细胞在其表面增殖、分化,经喷砂酸蚀的钛铌锆锡合金具有良好的细胞相容性。     

喷砂酸蚀复合MAO纯钛表面对成骨细胞粘附的影响

目的:研究喷砂酸蚀(sandblast-acid etch,SA)复合微弧氧化(micro arc oxidation,MAO)纯钛表面对成骨细胞粘附的影响,探讨SA与MAO复合处理技术在钛种植体表面改性中的价值.材料和方法:将纯钛按表面处理方法的不同分为4组:MAO-SA组为250μm直径Al2O3颗粒喷砂HF酸蚀后MAO处理,MAO组为单纯MAO处理,MAO-HT组为MAO处理后水热处理8h,SM组为光滑组.通过扫描电镜、激光共聚焦显微镜观察、Bradford蛋白定量法、四唑盐比色法和实时荧光定量PCR反应检测分析各表面对蛋白吸附、成骨细胞形态和骨架改建、粘附水平、粘附强度以及整合素表达的影响.数据采用SPSS16.0进行方差分析.结果:MAO-SA表面促进纤连蛋白的后期吸附,有利于成骨细胞粘附和骨架改建,使成骨细胞较早表现出良好的分泌功能形态,增强细胞粘附强度,显著上调成骨细胞整合素αv亚基的mRNA表达水平,但对β1亚基的表达无促进作用.讨论:对纯钛表面进行SA和MAO复合处理,获得独特的表面微形貌,提高粗糙度,从而促进细胞外基质蛋白吸附和成骨细胞粘附.结论:MAO-SA表面显著促进成骨细胞的粘附,具有良好的生物相容性.     

纯钛微弧氧化-壳聚糖-海藻酸钠涂层的细胞相容性研究

目的:通过对不同涂层表面进行成骨细胞生物相容性检测,评价其生物相容性。方法:纯钛微弧氧化组为对照A组、纯钛微弧氧化-碱处理-壳聚糖复合处理为实验B组、纯钛微弧氧化-碱处理-壳聚糖-海藻酸钠复合处理为C组。通过CCK-8实验检测不同时间细胞黏附情况以及增殖情况,激光共聚焦检测早期细胞骨架形态,扫描电镜观察试件表面形貌,ALP检测其不同时间碱性磷酸酶活性。结果:激光共聚焦显示B组和C组表面细胞的生长和黏附均优于A组,C组优于B组。CCK-8和ALP的检测结果显示3组材料表面细胞的增殖、活性的顺序为C组>B组>A组,3组的比较差异均具有统计学意义。结论:3组材料均具有良好的生物相容性,纯钛微弧氧化--碱处理-壳聚糖-海藻酸钠复合处理涂层细胞相容性最佳。[关键词]纯钛成骨细胞壳聚糖海藻酸钠生物相容性     

聚四氟乙烯膜表面改性后成骨细胞相容性研究

目的:评价O2-PIII表面处理聚四氟乙烯(PTFE)膜后,其上培养生长的成骨细胞生物学相容性变化.方法: O2等离子体浸入离子植入技术(plasma immersion ion implantation,PIII)处理PTFE膜表面,进行膜表面改性;O2-PIII处理组和未处理组的PTFE膜分别通过扫描电镜 (SEM) 观察表面形态、表面接触角测定分析其亲水性;分别在2 组膜上接种成骨细胞, 6 h后SEM观察成骨细胞贴附情况,并分别于6、 24、 48 h后4', 6二脒基-2-苯吲哚盐酸(DAPI)核染色,荧光显微镜下观察成骨细胞的数量,进一步评估2 种膜表面对成骨细胞生物相容性的影响.结果: O2-PIII处理改变了PTFE膜表面形态和增强了其亲水性. 2 组样本表面接种成骨细胞后SEM及荧光照片显示:O2-PIII处理组相对于未处理组更利于成骨细胞的吸附和增殖.结论: O2-PIII处理后可提高PTFE膜表面成骨细胞的相容性,可望在临床实际应用中促进组织的修复和再生.     

改良喷砂表面影响牙种植体骨结合形式的体外实验研究

目的：采用已建立的体外研究牙种植体骨界面的三维实验模型，研究改良喷砂表面对种植体骨结合形式的影响。方法：以相差显微镜跟踪观察钛片和成骨细胞之间的界面变化；以细胞培养1个月后制取的界面细胞切片观察界面的结合形式及结合状态。结果：在引导成骨细胞向钛片移行贴附的能力方面改良喷砂表面与光滑表面无显著差异，但界面处细胞与钛表面的结合形工却存在着明显的不同。成骨细胞与光滑表面多为平行排列，而与改良喷砂表面则呈垂直或成角连接。另外，界面处细胞的形态亦存在明显的差别，光滑表面的细胞呈梭形，而改良喷砂表面的细胞则呈圆形、椭圆形，且胞体较大、胞浆丰富。结论：改良喷砂表面处理有利于牙种植体的骨愈合、并形成骨纤维垂直连接式的骨结合。     

纯镁微弧氧化-HF-硅溶胶复合处理涂层细胞相容性研究

目的:对纯镁微弧氧化经HF-硅溶胶复合处理涂层进行成骨细胞生物相容性检测,评价纯镁表面微弧氧化经不同复合处理涂层后的细胞相容性。方法:实验分为3组,纯镁微弧氧化组为对照组(A组)、纯镁微弧氧化-硅溶胶复合处理组(B组)、纯镁微弧氧化-HF-硅溶胶复合处理组(C组)。将MC3T3-E1系成骨细胞接种在3组材料表面,分别通过扫描电镜、激光共聚焦、CCK-8、ALP对成骨细胞的生长、黏附、增殖以及活性进行检测。结果:扫描电镜和激光共聚焦显示B组和C组表面细胞的生长和黏附均优于A组,C组优于B组。CCK-8和ALP的检测结果显示3组材料表面细胞的增殖、活性为C组＞B组＞A组,3组的比较差异均具有统计学意义。结论:3组材料均具有良好的生物相容性,而纯镁微弧氧化-HF-硅溶胶复合处理后的生物相容性最佳。     

碱性成纤维细胞生长因子对成骨细胞骨架蛋白作用的研究

目的探讨碱性成纤维细胞生长因子(bFGF)对成骨细胞骨架蛋白的作用。方法用含不同浓度bFGF F12培养基对成骨细胞进行24 h预孵后,将成骨细胞接种于喷砂处理的钛片上,第3天终止培养,利用激光共聚焦显微镜以及免疫荧光的方法对细胞骨架进行形态学观察以及荧光定量检测。结果成骨细胞中的微丝骨架呈纤维状,以与细胞长轴平行的方向排列。9 ng/mL和27 ng/mL bFGF预孵成骨细胞,能增加成骨细胞中细胞微丝骨架蛋白F-actin的含量。结论一定浓度的bFGF能促进成骨细胞骨架蛋白的表达。     

聚己内酯静电纺丝支架与人牙周膜干细胞的生物相容性

目的：观察荧光标记的人牙周膜干细胞在聚己内酯静电纺丝支架上的生长情况,评价聚己内酯静电纺丝支架与人牙周膜干细胞的生物相容性.方法：采用有限稀释法,体外分离培养人牙周膜干细胞.用荧光染料对牙周膜干细胞进行标记,检测细胞增殖情况,评价荧光标记对细胞生长特性的影响.制备聚己内酯静电纺丝支架,与牙周膜干细胞直接接触共培养7d,激光共聚焦显微镜观察细胞在支架材料上的黏附和增殖情况,扫描电镜观察细胞在支架材料上的生长状态.结果：成功分离培养人牙周膜干细胞;荧光染料标记后细胞发红色荧光,标记对细胞形态和生长特性无显著影响.激光共聚焦显微镜观察,可见牙周膜干细胞能够在聚己内酯静电纺丝支架上黏附增殖,局部细胞生长融合.扫描电镜观察,可见牙周膜干细胞在聚己内酯静电纺丝支架上黏附牢固,可进入支架内部复层生长.结论：荧光标记的牙周膜干细胞在聚己内酯静电纺丝支架上生长良好,聚己内酯静电纺丝支架与牙周膜干细胞具有良好的生物相容性,有望作为牙周组织工程的载体材料.     

亲水性纯钛表面对成骨细胞黏附行为的影响

目的:体外研究亲水性喷砂酸蚀钛表面对成骨细胞黏附、铺展行为和黏着斑激酶(FAK)表达的影响.方法:钛片表面分别采用大颗粒喷砂酸蚀表面处理(sandblasted,large-grit,acid-etched,SLA)及亲水性化学活化大颗粒喷砂酸蚀表面处理(chemically-modified hydrophilic SLA,modSLA),在其表面接种人成骨细胞,对细胞黏附率、细胞铺展情况以及黏着斑激酶(FAK)的表达进行检测.应用SAS6.0软件包对数据进行统计学分析.结果:成骨细胞在modSLA表面的早期黏附率(1h、3h)显著高于SLA表面(P<0.05);接种3h后,modSLA表面的成骨细胞呈现更多的肌动蛋白结构和明显的成骨细胞骨架结构,细胞铺展更加明显,modSLA组细胞形状因子均值显著低于SLA组(P<0.05);免疫荧光分析显示,6h modSLA表面细胞内FAK的荧光强度高于SLA组(P<0.05).结论:亲水性化学活化大颗粒喷砂酸蚀处理钛表面较大颗粒喷砂酸蚀处理钛表面能显著增强成骨细胞在材料表面的贴附,促进细胞骨架沿一定方向伸展,促进黏着斑激酶(FAK)的表达,从而增强细胞的黏附力.     

微弧氧化钛表面对成骨细胞形态及细胞骨架的影响

目的 研究微弧氧化钛表面对成骨细胞形态及细胞骨架的影响。方法 将直径15 mm、厚度1 mm的纯钛片根据表面处理方法不同分为4组：机械打磨（G）组、喷砂（SB）组、打磨微弧氧化（GMAO）组和喷砂微弧氧化（SBMAO）组。采用扫描电子显微镜（SEM）、激光共聚焦显微镜（LSCM）研究钛片表面成骨细胞生长情况及细胞骨架的改变。结果 成骨细胞接种12 h后,各组细胞均沿钛片表面铺展开,且GMAO组和SBMAO组细胞覆盖于火山口状微孔上。各组肌动蛋白纤维清晰可见,GMAO组和SBMAO组肌动蛋白纤维平行排列,汇聚成束伸向微孔内。结论 微弧氧化后的钛表面可以影响成骨细胞铺展的形态及细胞骨架的排列。     

A comparison of biocompatibility and osseointegration of ceramic and titanium implants: an in vivo and in vitro study

This study compared the biocompatibility in vitro and the osseointegration in vivo of zirconium and titanium implants regarding implant surfaces and the bone-implant contacts. The different implant surfaces and the biocompatibility of zirconium versus titanium implants were determined by vitality and cytotoxic tests in vitro. The contact of the osteoblasts to the implant surface was determined by scanning electron microscopy (SEM). The in vivo study for osseointegration was performed in domestic pigs over 4 and 12 weeks. In each animal, 4 zirconium and 4 titanium implants (WhiteSky, BlueSky, Bredent, Germany) were inserted in the os frontale and analysed by histomorphometry. Cytotoxicity and SEM showed good biocompatibility in relation to the investigated implant materials. Histological results showed direct bone-implant contact of the implant surfaces. The zirconium implants showed a slight delay in osseointegration in terms of bone-implant contact as measured by histomorphometry (after 4 weeks, zirconium (59.3 ± 4.6%) versus titanium (64.1 ± 3.9%); after 12 weeks, zirconium (67.1 ± 2.3%) versus titanium (73.6 ± 3.2%). A statistically significant difference between the two groups was not observed. The results indicated similar biocompatibility and osseointegration for zirconium compared to titanium implants.     

钛-75合金与纯钛犬股骨内长期种植后的组织学比较研究

目的 :为弥补纯钛在机械性能方面存在的缺陷 ,开发新的牙种植材料 ,我们选用机械性能优于纯钛的新型的钛合金材料 :钛 - 75 (钛铝钼锆TiAlMoZr)作为实验对象。方法 :以纯钛作对照 ,将两种材料种植于犬股骨中 ,分别经 3个月、6个月、12个月、2 4个月、36个月后取材 ,进行种植体、骨界面的X -线检查 ,不脱钙骨切片光镜观察和电镜等组织学观察。结果 :钛 - 75与骨组织结合紧密 ,无结缔组织介入 ,界面组织结构与纯钛比较无明显差异。结论 :提示钛 - 75具有与纯钛相近的组织相容性     

Antimicrobial Agents Used in the Treatment of Peri‐Implantitis Alter the Physicochemistry and Cytocompatibility of Titanium Surfaces

Background: Chemotherapeutic agents (ChAs) are considered an integral part of current treatment protocols for the decontamination of titanium implants with peri‐implantitis, based on their antimicrobial effect. Despite the proven antimicrobial effect of ChAs on titanium‐bound biofilms, previous studies have elucidated an unexpected disassociation between bacterial reduction and biologically acceptable treatment outcomes. In this study, the authors hypothesize that ChAs residues alter titanium physicochemistry and thus compromise cellular response to decontaminated surfaces. Methods: Grit‐blasted acid‐etched titanium disks were contaminated with multispecies microcosm biofilms grown from in vivo peri‐implant plaque samples. To simulate implant decontamination, the contaminated disks were burnished with 0.12% chlorhexidine, 20% citric acid, 24% EDTA/1.5% NaOCl, or sterile saline and assessed surface physicochemical properties. Sterile untreated surfaces were the controls. The biologic effects of decontamination were assessed via cell proliferation and differentiation assays. Results: Bacterial counts after decontamination confirmed that the ChAs were antimicrobial. X‐ray photoelectron spectroscopy invariably detected elemental contaminants associated with each ChA molecule or salt that significantly altered wettability compared with controls. Notably, all surfaces with ChA residues showed some cytotoxic effect compared with controls (P <0.05). Increased cell counts were consistently found in the saline‐treated group compared with chlorhexidine (P = 0.03). Interestingly, no association was found between antimicrobial effect and cell counts (P >0.05). Conclusions: ChA‐specific residues left on the titanium surfaces altered titanium physical properties and adversely affected the osteoblastic response irrespective of their observed antimicrobial effect. Chlorhexidine may compromise the biocompatibility of titanium surfaces, and its use is not recommended to detoxify implants. Sterile saline, citric acid, and NaOCl‐EDTA may be proposed for use in the treatment of peri‐implantitis. Contrary to previous studies that recommended the selection of ChAs for the decontamination of titanium implants according to their antimicrobial effects, the present study demonstrated that the restoration of the biocompatibility of contaminated titanium surfaces is also contingent on the preservation of titanium material properties.     

Cell culture tests for assessing the tolerance of soft tissue to variously modified titanium surfaces

The aim of our research project was to achieve an improvement in the integration of enossal dental implants in the region of peri-implantary soft tissue. Improvement in the adhesion of the gingiva of the surface of enossal implants was to be achieved by modification of the titanium surface. The effect of different modifications on the biocompatibility of the modified titanium surfaces was tested: sulfur dioxide plasma treatment of titanium; acetylene plasma treatment of titanium followed by sulfur dioxide plasma etching; plasma nitration of titanium; replacement of titanium by glycidoxypropyltrimethoxy silane; coating titanium with poly[(ethene-co-vinyl acetate)-graft-vinyl chloride] and coating titanium with fibronectin. Determination of the chemical composition of the surface was carried out using X-ray photospectroscopy. The adsorption of fibronectin at the surface of the titanium was tested using an Enzyme Linked Immunosorbent Assay. In selected in vitro tests with human gingival fibroblasts, cell morphology was assessed using scanning electron microscopy and light microscopy. Cell proliferation and protein synthesis, as well as the activity of mitochondrial dehydrogenases were evaluated. By means of centrifugation and by determining initial cell adhesion, the adhesion of gingival fibroblasts was investigated. According to the kind of modification made to the titanium surfaces, it was possible to observe differences in the cellular behavior of gingiva fibroblasts on the differently modified surfaces of the implants. Coating the titanium using fibronectin produced optimization of cell growth and improvement in the adhesion of gingiva fibroblasts to the implant surface. In contrast, modification of the titanium with poly[(ethene-co-vinyl acetate)-graft-vinyl chloride] generally resulted in a deterioration of the biocompatibility of the surface. A marked correlation between the cellular compatibility of the modified titanium and the surface modification made did not become apparent. One reason for this is the large number of parameters determining the interaction between implant and tissue.     

复合牛骨形成蛋白多孔中空种植体成骨效应的研究

目的　利用激光扫描共聚焦显微镜(LSCM)观察牛骨形成蛋白复合种植体成骨效应。方法　将天然提取的牛骨形成蛋白(bBMP)与多孔中空钛种植体相复合形成人工复合种植体,植入狗下颌骨,并设同等规格的实心柱状钛种植体及不复合bBMP的多孔中空柱状钛种植体植入狗下颌骨为对照组。应用三色荧光标记LSCM观察复合种植体周围骨整合情况。结果　实验组复合种植体在各时期成骨能力和成骨量均明显优于对照组。结论　复合种植体可诱导早期、大量、较持久的成骨;LSCM对种植体周围成骨行为进行观察是一种准确、有效的手段。     

Effects of an air-powder abrasive system on plasma-sprayed titanium implant surfaces: an in vitro evaluation

The purpose of this study was to conduct an in vitro evaluation of the effects of an air-powder abrasive system, commonly used in clinical dentistry for periodontal maintenance, on the surfaces of plasma-sprayed titanium dental implants. Twenty-eight plasma-coated titanium implant specimens were divided into a sterile water-treated control group and an air-powder-abrasive-treated test group. All specimens were subjected to three different in vitro testing conditions and post-treatment evaluations by scanning electron microscopy (SEM): (1) Topographical features of implant surfaces were studied before and after direct exposure to the abrasive; (2) biocompatibility of treated implant surfaces was evaluated and compared with those of control specimens via in vitro fibroblast attachment studies; and (3) the attachment of a common oral microbe to the implant surface and its subsequent removal by exposure to the air-powder abrasive were also evaluated. Results indicate that exposure of implant specimens to the air-powder abrasive for various periods resulted in only slight changes in surface topography, i.e., rounding of angles and edges of the plasma-spray coating and occasional surface pitting. Examination by SEM and a statistical comparison of the difference between the mean numbers of attached fibroblasts between control and test groups revealed no statistical significance. In both specimen groups, fibroblasts exhibited uniform attachment over the entire implant surface. A comparison of test and control groups demonstrated 100% removal of bacteria from the surfaces of test specimens exposed to the air-powder abrasive and approximately a 75% removal from control specimens exposed to sterile water.     

In vitro biocompatibility of a new titanium-29niobium-13tantalum-4.6zirconium alloy with osteoblast-like MG63 cells

BACKGROUND: Titanium-29niobium-13tantalum-4.6zirconium (TiNb) has recently been developed as a new implant material. TiNb is composed of non-toxic elements and has a lower modulus of elasticity than the other titanium alloys. However, its biocompatibility has not been adequately characterized. The aim of this study was to evaluate the biocompatibility of TiNb using an osteoblast-titanium co-culture system. METHODS: MG63 cells were cultured on three kinds of titanium disks: TiNb, pure titanium (pTi), and titanium-6aluminum-4vanadium (TiAl), prepared with two different surfaces, a polished and acid-etched surface and a machined-grooved surface. The surface topography and roughness were evaluated by scanning electron microscopy (SEM). After 48 hours culture, the number of proliferating cells and prostaglandin E2 (PGE2) production in the culture supernatant were determined. RESULTS: There was no significant difference in surface roughness among the three titanium disks with a polished and acid-etched surface. After 48 hours of culture, the number of cells was significantly reduced on pTi and TiAl compared to TiNb and the control. PGE2 production was significantly higher on pTi than on TiAl, TiNb, and the control. We further examined the effect of surface roughness on PGE2 production using machine-grooved titanium disks. While pTi and TiAl stimulated the production of PGE2 depending on surface roughness, roughened TiNb did not affect PGE2 production. CONCLUSIONS: These results suggest that TiNb may exhibit favorable biocompatibility because it has an efficient surface topography for cell proliferation, and the level of PGE2 production does not depend on surface roughness. We conclude that TiNb may be useful as an implant material.     

Surface properties and biocompatibility of nitrided titanium for abrasion resistant implant materials

Corrosion, other related properties and biocompatibility of surface nitrided titanium were investigated to examine its possible use as an abrasion resistant implant material. The nitrided layer about 2 microm thick composed of TiN and Ti2N was formed on titanium by a gas nitriding method. The dissolved amount of titanium ion in SBF was as low as the detection limit of ICP, and that in the 1% lactic acid showed no significant difference from titanium. The tissue reaction of the cylindrical implant in soft tissue of rats showed no inflammation, and fine particles of 1 microm induced phagocytosis, which was similar to titanium. The implantation in the femor showed the new bone formed in direct contact with implants. All the results suggested that the wettability, corrosion resistance, S. mutans adhesion and biocompatibility were nearly equivalent to those of titanium. The surface of nitrided titanium was promising, with biocompatibility comparable with titanium, as an implant material such as for an abutment part of a dental implant, which requires high abrasion resistance.     

Influence of different treatment approaches on the removal of early plaque biofilms and the viability of SAOS2 osteoblasts grown on titanium implants

The aim of the present study was to evaluate the influence of different treatment approaches on: (1) the removal of early plaque biofilms grown on titanium implants, and (2) the biocompatibility of the instrumented implant surfaces. Five volunteers wore acrylic splints with sand-blasted and acid-etched titanium discs for 24 h to build up supragingival plaque. A total of 80 specimens were randomly assigned to the following groups: (1) an Er:YAG laser (100 mJ/pulse, 10 Hz) (Y), (2) an ultrasonic system (U), (3) plastic curettes and rinsing with chlorhexidine digluconate (P), or (4) unworn titanium discs (C). Autoclaved specimens were incubated with SAOS2 cells for three days. The following parameters were measured: treatment time (T), residual plaque biofilm (RPB) and clean implant surface (CIS) areas (%), and mitochondrial cell activity (MA) (counts/s). Statistical analysis within and between groups revealed the following mean scores (±SD): RPB areas: P (61.1±11.4) > U (36.8±4.5) > Y (5.8±5.1); CIS areas: Y (94.2±5.1) > U (63.2±4.5) > P (38.9±11.2); T: Y (5.6±1.2) > U (2.4±0.5) > P (2.3±0.5); MA: C (1.528.636±188.371) > U (831.594±370.228) > Y (678.250±367.902) > P (144.105±120.961). Within the limits of the present study, it may be concluded that Y seems to be most suitable for the removal of supragingival early plaque biofilms grown on SLA titanium implants, and (2) all treatment procedures failed to restore the biocompatibility of previously-contaminated SLA titanium surfaces.     

应用IBAD方法制备纯钛表面多孔TCP／HA涂层材料的微观分析

目的:为了改善钛种植体的生物相容性,对纯钛表面沉积多孔磷酸三钙/羟基磷灰石(Tricalciumphosphate/hydroxyapatite,TCP/HA)复合涂层材料的表面结构和化学成分进行分析,并与沉积羟基磷灰石(Hydroxyapatite,HA)的钛表面进行对比。方法:用离子束辅助沉积方法(Ionbeamassisteddeposition,IBAD)在纯钛表面沉积HA和TCP/HA涂层材料,通过扫描电镜(Scanningelectronmicroscope,SEM)、原子力显微镜(Atomicforcemicroscopy,AFM)、X射线能谱分析(EnergydispersiveX-rayanalysis,EDX)以及X射线衍射(X-raydiffraction,XRD)技术,检测两种涂层材料表面的微观形态和化学成分,并进行比较。结果:SEM和AFM显示TCP/HA涂层材料表面存在多孔结构,表面化学成分分析显示TCP/HA涂层的钙磷比低于HA,XRD证实TCP/HA涂层内同时存在TCP和HA两种化合物。结论:用IBAD方法在纯钛表面成功地沉积了具有多孔结构的TCP/HA复合涂层材料,该涂层材料和基体材料的结合牢固,改善了基体材料的生物相容性,是一种有应用前景的种植体表面涂层材料。