不同树脂粘接剂对渗透陶瓷粘接强度的影响

目的观察比较不同树脂粘接剂对氧化铝渗透陶瓷粘接剪切强度的效果。方法选择无龋坏的人离体磨牙40颗,处理后随机分为4组,每组10件。A组用Solobond Plus粘接剂+Bifix QM粘接剂,B组用Fu-turabond DC粘接剂+Bifix QM粘接剂,C组用Bifix SE自酸蚀树脂粘接剂,D组用Panavia F双重聚合型粘接材料。所有样本在37℃蒸馏水中储存24 h后进行测试,记录剪切强度值,用SAS 6.12统计软件对结果进行单因素方差分析。结果 Panavia F双重聚合型粘接材料组的剪切强度显著高于其他3组(P<0.01),Bifix SE自酸蚀树脂粘接剂组的剪切强度最小。结论 Panavia F双重聚合型粘接材料用于氧化铝渗透陶瓷可获得较好的粘接效果,值得在临床上推广。     

3种树脂粘接水门汀与铸造纯钛粘接强度研究

目的：研究3种复合树脂粘固剂与铸造纯钛的粘接强度。方法：用牙科铸钛的方法制作直径分别为4mm和5mm的钛棒,切割成长度为4mm的小钛片。2种规格的钛片配对粘接面用400～1200目碳化硅砂纸在流水下打磨抛光,使之呈均匀一致的平面。50μm氧化铝喷砂,另一组表面不喷砂作为对照,分别使用Super-BondC＆B、Panavia F、Rely X Unicem 3种复合树脂粘固剂粘接。扫描电镜观察喷砂前后铸造纯钛的表面形态。复合树脂粘接剂固化后经37℃恒温水浴24h以及5000次5～55℃冷热循环,测试剪切强度。用SAS的ANOVA过程对各组数据进行分析。结果：喷砂前后纯钛与Panavia F的剪切强度最高,分别为（26.62±3.40）MPa、（23.71±5.28）MPa;5000次冷热循环后,喷砂组的铸造纯钛与Panavia F的剪切强度最高（27.12±8.68）MPa;未喷砂的铸造纯钛与Super-Bond C＆B、Rely X Unicem的粘接强度最低,并且有12.5%的脱落率。结论：本实验结果表明喷砂可以提高Super-Bond C＆B、Panavia F、Rely X Unicem的粘结力和粘结耐久力。不喷砂时,Panavia F与铸造纯钛之间能获得较高的粘接强度和良好的粘接耐久性,喷砂以后优势不再明显。     

不同树脂粘接剂对渗透陶瓷粘接强度的影响

目的观察比较不同树脂粘接剂对氧化铝渗透陶瓷粘接剪切强度的效果。方法选择无龋坏的人离体磨牙40颗,处理后随机分为4组,每组10件。A组用Solobond Plus粘接剂＋Bifix QM粘接剂,B组用Fu—turabondDC粘接剂＋BifixQM粘接剂,C组用BifixSE自酸蚀树脂粘接剂,D组用PanaviaF双重聚合型粘接材料。所有样本在37℃蒸馏水中储存24h后进行测试,记录剪切强度值,用SAS6．12统计软件对结果进行单因素方差分析。结果PanaviaF双重聚合型粘接材料组的剪切强度显著高于其他3组（P〈0．01）,BifixSE自酸蚀树脂粘接剂组的剪切强度最小。结论PanaviaF双重聚合型粘接材料用于氧化铝渗透陶瓷可获得较好的粘接效果,值得在临床上推广。     

树脂类粘接剂对全瓷与牙本质之间粘接强度的影响

目的比较3种不同粘接剂对3种全瓷材料与牙本质之间抗剪切粘接强度的影响。方法样本为热压铸造陶瓷组、氧化铝渗透陶瓷组和氧化锆切削陶瓷组,每组各18片,各组再随机分为A、B、C3个小组,每小组6片。将收集的离体恒磨牙打磨至牙本质浅层,分别采用树脂类粘接剂RelyXTM ARC、PanaviaTMF以及Rely XTM Unicem与3种全瓷片粘接。所有试件均置于37℃人工唾液,24h后测试54个试件的抗剪切强度。结果热压铸造陶瓷组与氧化锆切削陶瓷组均为RelyXTM Unicem抗剪切粘接强度最高,而氧化铝渗透陶瓷组PanaviaTM F抗剪切粘接强度最高。结论对于3种不同全瓷材料,临床上可根据全瓷修复体的种类选择适当的粘接剂系统。     

不同牙科粘接剂冷热循环前后微拉伸强度的比较研究

目的 测量不同牙科粘接剂冷热循环前后的微拉伸强度.方法 将临床常用9种粘接剂分为9组,分别为3M公司的Single Bond 2(SB)、Easy One (EO)和SE Plus B(SEPB),可乐丽公司的SE Bond(SEB)和Protect Bond (PB),松风公司的Fl-Bond Ⅱ (FLB)和Beauti Bond(BB),贺利氏古莎公司的Durafill Bond (DB)和i Bond(IB),所有材料均制备成哑铃型微拉伸试件,测量冷热循环前、后的微拉伸强度.结果 除IB和BB试件制作时不固化,微拉伸强度无法测量外,粘接剂在冷热循环前的微拉伸强度SB最低(15.41 MPa±1.46 MPa),PB最高(41.17 MPa ±7.87 MPa),各组顺序依次为:SB＜DB＜EO＜SEB＜FLB＜SEPB＜PB.冷热循环后的微拉伸强度DB最低(9.57 MPa±2.02 MPa),SEB最高(38.73 MPa ±2.48 MPa),依次为:DB＜SEPB＜FLB＜PB＜SEB,SB和EO循环后严重变形,无法测量.除PB之外,冷热循环前、后的微拉伸强度均具有统计学差异(P＜0.05).结论 不同粘接剂之间以及粘接剂本身冷热循环前、后的微拉伸强度有较大差异.     

热冷循环对托槽抗剪切强度影响的研究

目的 比较冷热循环前后两种粘接剂抗剪切粘接强度，从而研究冷热循环实验对粘接剂抗剪切强度的影响。方法 90颗因正畸需要而拔除的人类前磨牙按照粘接剂（超强粘接剂和京津釉质粘合剂）和储存条件（室温蒸馏水中、37℃人工唾液中、冷热循环实验）的不同随机均分为6组，粘接金属方丝弓托槽，测定并记录抗剪切粘接强度和牙面残留粘接剂指数。结果 方差分析显示两种粘接剂粘接强度无明显差剐，但冷热循环后粘接强度均明显降低（P〈0．01）；牙面残留粘接剂指数无明显差别。结论 冷热循环实验可明显降低托槽抗剪切粘接强度，体外粘接强度研究应进行冷热循环实验。     

甲基丙烯酰氧基丙基三甲氧基硅烷对3种不同金属与Filtek树脂粘接强度的影响

目的研究经甲基丙烯酰氧基丙基三甲氧基硅烷（γ-MPS）偶联剂处理的3种不同金属的粘接表面对FiltekZ350树脂粘接强度的影响。方法用失蜡铸造法制备镍铬合金、纯钛、金钯合金试件各12个,共36个。每种金属随机平分为实验组和对照组,每组6个。实验组用γ-MPS对粘接面进行处理后与Filtek Z350树脂粘接,对照组粘接面不用γ-MPS处理。测试每组试件断裂时的剪切力,并用扫描电子显微镜（SEM）观察试件断面的形貌。结果镍铬合金实验组、纯钛实验组较相应对照组的剪切强度高,差异有统计学意义（P<0.001）;金钯合金实验组与其对照组的剪切强度无明显差异（P>0.05）。实验组内比较：纯钛组剪切强度高于镍铬合金组,两者又均高于金钯合金组（P<0.01）。所有试件均为黏结断裂。与对照组相比,镍铬合金和纯钛实验组断裂面有较多的树脂突,而金钯合金实验组断裂面树脂突较少。结论γ-MPS可以提高金属和树脂的粘接力,但和金属成分有关。γ-MPS能增加纯钛、镍铬合金与树脂的粘接性能,但不能认为γ-MPS可以增加金钯合金与树脂的粘接性能。     

喷砂对不同树脂与纯钛粘结抗剪强度及粘结耐久力的影响

目的探讨喷砂处理对不同树脂与纯钛粘结抗剪强度及粘结耐久力的影响。方法用牙科铸钛的方法制作φ5 mm×5 mm及φ4 mm×2 mm的圆柱形钛段各96个,两种规格的钛段配对(共96对)。分成实验组和对照组。实验组钛粘接表面用50μm Al2O3喷砂,对照组钛表面不做处理。分别用Super-Bond C&B(SB)、Panavia F(PF)和Rely X Unicem(RU)按生产厂商提供的要求将大、小钛段成对粘接。分为SB未喷砂、SB喷砂、PF未喷砂、PF喷砂、RU未喷砂、RU喷砂6组(每组16对)。将以上每组中的一半样品(每组8对)置于37℃水浴箱内24 h,,另一半样品水储24 h后再进行5 000次冷热循环。将样品固定于MTS测试机上进行剪切强度的测试,计算粘结抗剪强度值。不同粘结剂组的粘结抗剪强度采用考虑交互作用的两因素方差分析进行统计学分析。结果冷热循环前,RU未喷砂组的粘接抗剪强度最低,SB喷砂组粘接抗剪强度最高,为(28.03±8.40)MPa,5 000次冷热循环后,PF喷砂组粘接抗剪强度最高,为(27.12±8.68)MPa,RU未喷砂组最低。冷热循环前,SB喷砂组和SB未喷砂组,RU喷砂组和RU未喷砂组的粘接抗剪强度值差异有统计学意义(P<0.05)。5 000次冷热循环后,RU喷砂组和RU未喷砂组的粘接抗剪强度值差异有统计学意义(P<0.05)。SB未喷砂组、SB喷砂组5 000次冷热循环前、后的粘接抗剪强度值差异有统计学意义(P<0.05)。其余各组5 000次冷热循环前、后的粘接抗剪强度值差异没有统计学意义(P>0.05)。结论喷砂能显著提高铸造纯钛与SB、RU的粘接抗剪强度及粘结耐久力,但不是和所有树脂与纯钛的粘接抗剪强度及粘结耐久力成正相关关系。     

负压对钛与树脂粘接剂粘接性能的影响

目的 本研究旨在探讨负压对不同粗糙度钛与树脂粘接剂粘接性能的影响。方法 铸造钛片（1×10×10）mm抛光后随机分为4组（n=50）。1组（对照组）：只作抛光处理;2、3和4组用110μm氧化铝分别在0.2 MPa、0.3 MPa和0.4 MPa的压力下喷砂。扫描电镜观察钛表面形貌并测量粗糙度。随机将每组分为2个亚组：常压（A）组和负压（S）组。A组常规用Panavia F树脂粘接剂粘接钛与树脂柱;S组在钛表面涂布Panavia F粘接剂后,在-0.1 MPa的负压箱内放置20 s,然后粘接树脂柱。每组随机选取一试件纵切,电镜观察粘接界面。将半数试件进行冷热循环（10000次）,对冷热循环前后的粘接试件进行剪切强度测试并分析断裂模式。采用双因素方差分析和Tukey LSD对数据进行统计分析。结果 随着喷砂压力的增加,钛表面粗糙度显著增加（P<0.05）。冷热循环前后,S组的剪切强度均显著高于A组（P<0.05）, S3组的剪切强度最高（P<0.05）。S组混合断裂的比例明显增加（P<0.05）。扫描电镜显示,与A组相比,S组试件与粘接剂结合更紧密。结论 负压能显...     

Shear Bond Strength of Four Resin Cements Used to Lute Ceramic Core Material to Human Dentin

Purpose: This study evaluated the effect of four resin cements on the shear bond strength of a ceramic core material to dentin. Materials and Methods: One hundred twenty molar teeth were embedded in a self‐curing acrylic resin. The occlusal third of the crowns were sectioned under water cooling. All specimens were randomly divided into four groups of 30 teeth each according to the resin cement used. One hundred twenty cylindrical‐shaped, 2.7‐mm wide, 3‐mm high ceramic core materials were heat‐pressed. The core cylinders were then luted with one of the four resin systems to dentin (Super‐Bond C&B, Chemiace II, Variolink II, and Panavia F). Half of the specimens (n = 15) were tested after 24 hours; the other half (n = 15) were stored in distilled water at 37°C for 1 day and then thermocycled 1000 times between 5°C and 55°C prior to testing. Shear bond strength of each specimen was measured using a universal testing machine at a crosshead speed of 1 mm/min. The bond strength values were calculated in MPa, and the results were statistically analyzed using a two‐way analysis of variance (ANOVA) and Tukey HSD tests. Results: The shear bond strength varied significantly depending on the resin cement used (p < 0.05). The differences in the bond strengths after thermocycling were not remarkable as compared with the corresponding prethermal cycling groups (p > 0.05). Significant interactions were present between resin cement and thermocycling (p < 0.05). After 24 hours, the specimens luted with Variolink II (5.3 ± 2.2 MPa) showed the highest shear bond strength, whereas the specimens luted with Chemiace II (1.6 ± 0.4 MPa) showed the lowest. After thermocycling, the bond strength values of specimens luted with Chemiace II (1.1 ± 0.1 MPa) and Super‐Bond C&B (1.7 ± 0.4 MPa) decreased; however, this was not statistically significant (p > 0.05). The increase in the shear bond strength values in the Panavia F (4.5 ± 0.7 MPa) and Variolink II (5.5 ± 2.1 MPa) groups after thermocycling was also not statistically significant (p > 0.05). Conclusion: Variolink II and Panavia F systems showed higher shear bond strength values than Chemiace II and Super‐Bond C&B. They can be recommended for luting ceramic cores to dentin surfaces.     

铸造纯钛与树脂水门汀粘结界面疲劳强度的研究

目的：本实验通过体外循环加载模拟口内受力,研究不同的树脂水门汀与铸造纯钛之间粘结界面疲劳强度,以及冷热循环对疲劳强度的影响,为临床应用提供实验依据。方法：用φ5mm×5mm的圆柱形小钛段与φ4mm×2mm小钛片48对分别用Super-Bond C＆B和Panavia F粘接,粘接前粘接面用Alloy Primer预处理,将以上每组中的一半样品置于37℃水浴箱内24h,另一半样品水储24h后再进行5000次冷热循环（5℃←→55℃,浸渍时间为30s）。将样本固定于振动动态测试系统上进行疲劳测试,试验波形为正弦波,应力比R=0,频率为4Hz,测定参照升降法,将疲劳试验结果与之前静载剪切强度测试结果进行对比分析。结果：疲劳极限远小于静载剪切强度值,冷热循环对疲劳强度没有明显影响。疲劳极限值与剪切强度值呈正相关（P〈0.01）。结论：铸造纯钛表面经Alloy Primer处理后与2种树脂水门汀粘固后能耐受106次循环加载的疲劳极限约为静载剪切强度的15%。     

树脂修饰化玻璃离子托槽粘结剂粘结强度的体外研究

目的：评估一种树脂修饰化的玻璃离子托槽粘结剂在牙面不同处理方式和环境下的两次粘结后的剪切强度情况。方法：将新近拔除的105颗上颌第一前磨牙随机均分成7组,按照说明书的要求完成托槽的粘结。对照组牙面用37%的磷酸处理后,用光固化复合树脂粘结剂（3M,Transbond XT）粘结。其它6组牙面分别在37%的磷酸、GC处理剂（GC Self-Conditioner）、和不做任何处理的条件下,分别在干燥和湿润的环境下用树脂修饰化的玻璃离子（RMGIC;Fuji ORTHO LC,GC Corporation,Tokyo,Japan）粘结,所有牙齿均选用同种托槽。托槽粘结24 h后,在万能测力机下以1 mm/min的速度卸载,并记录下数值。除去牙面和托槽底面多余粘结剂后,重复上述过程。每次卸载后检查牙釉质损坏情况。结果：对照组两次剪切强度有较小的差异,其它GC玻璃离子粘结剂组两次剪切强度没有统计学意义。GC粘结剂不做任何处理组在干燥和湿润的环境下其剪切强度存在明显的差异。干燥环境下,37%的磷酸和GC处理剂处理后,GC粘结剂组两次卸载后的牙釉质均出现不同程度的釉裂或釉质脱落。结论：这种树脂修饰化的玻璃离子粘结剂可以在多种条件下用于托槽的粘结。     

口内喷砂增强Ni-Cr合金与复合树脂间粘接强度的研究

目的研究崩瓷修复中,口内喷砂对Ni-Cr合金与复合树脂间粘接强度的影响。方法12个Ni-Cr合金试件随机分2组,实验组合金表面模拟口内喷砂,对照组不进行口内喷砂,采用alloyprimer金属处理剂对金属表面处理,然后使用VocoCimara瓷修补系统粘接修复,经37℃恒温水浴2 4小时后,测定金属试件与复合树脂之间剪切粘接强度,进行统计分析。结果经过模拟口内喷砂的实验组合金与复合树脂之间剪切粘接强度显著高于对照组(P <0 .0 5 )。2 0倍体视镜观察两组断裂面均位于金属-复合树脂界面。结论口内喷砂可增强Ni-Cr合金-复合树脂间剪切粘接强度。     

A Study on Effect of Surface Treatments on the Shear Bond Strength between Composite Resin and Acrylic Resin Denture Teeth

Visible light-cured composite resins have become popular in prosthetic dentistry for the replacement of fractured/debonded denture teeth, making composite denture teeth on partial denture metal frameworks, esthetic modification of denture teeth to harmonize with the characteristics of adjacent natural teeth, remodelling of worn occlusal surfaces of posterior denture teeth etc. However, the researches published on the bond strength between VLC composite resins and acrylic resin denture teeth is very limited. The purpose of this study is to investigate the effect of five different methods of surface treatments on acrylic resin teeth on the shear bond strength between light activated composite resin and acrylic resin denture teeth. Ninety cylindrical sticks of acrylic resin with denture teeth mounted atop were prepared. Various treatments were done upon the acrylic resin teeth surfaces. The samples were divided into six groups, containing 15 samples each. Over all the treated and untreated surfaces of all groups, light-cured composite resin was applied. The shear strengths were measured in a Universal Testing Machine using a knife-edge shear test. Data were analyzed using one way analysis of variance (ANOVA) and mean values were compared by the F test. Application of bonding agent with prior treatment of methyl methacrylate on the acrylic resin denture teeth resulted in maximum bond strength with composite resin.     

Bond Strength of Resin Cements to Co‐Cr and Ni‐Cr Metal Alloys Using Adhesive Primers

Purpose: The aim of this study was to evaluate the effectiveness of adhesive primers (APs) applied to Co‐Cr and Ni‐Cr metal alloys on the bond strength of resin cements to alloys. Materials and Methods: Eight cementing systems were evaluated, consisting of four resin cements (Bistite II DC, LinkMax, Panavia F 2.0, RelyX Unicem) with or without their respective APs (Metaltite, Metal Primer II, Alloy Primer, Ceramic Primer). The two types of dental alloys (Co‐Cr, Ni‐Cr) were cast in plate specimens (10 × 5 × 1 mm³) from resin patterns. After casting, the plates were sandblasted with aluminum oxide (100 μm) and randomly divided into eight groups (n = 6). Each surface to be bonded was treated with one of eight cementing systems. Three resin cement cylinders (0.5 mm high, 0.75 mm diameter) were built on each bonded metal alloy surface, using a Tygon tubing mold. After water storage for 24 hours, specimens were subjected to micro‐shear testing. Data were statistically analyzed by two‐way ANOVA and Tukey's studentized range test. Results: The application of Metal Primer II resulted in a significantly higher bond strength for LinkMax resin cement when applied in both metal alloys. In general, the cementing systems had higher bond strengths in Co‐Cr alloy than in Ni‐Cr. Conclusions: The use of AP between alloy metal surfaces and resin cements did not increase the bond strength for most cementing systems evaluated.     

树脂托槽在不同粘接剂下抗剪切强度的体外研究

目的：选出适宜树脂托槽使用的粘接剂指导临床应用。方法：收集新鲜双尖牙60颗,随机分为3组,每组20颗。1）京津釉质粘接剂组;2）自酸蚀光固化型复合树脂粘接剂组;3）单组分粘接剂组。所有牙齿记录余留粘接剂指数（the adhesive remnant index,ARI）及釉质裂纹情况。实验数据用SPSS11.0统计软件进行分析。结果：单组分粘接剂与其他两组粘接剂的抗剪切强度有显著性差异（P〈0.05）。ARI记分无显著性差异（P〉0.05）;3组牙面上均无裂纹产生。结论：单组分粘接剂组抗剪切强度最大。