Shear bond strengths between alumina-toughened zirconia cores and veneering ceramics and their susceptibility to aging

Objective:To evaluate the shear bond strength(SBS) between alumina-toughened zirconia (ATZ) cores and veneering ceramics,investigate the effect of aging in artificial saliva on SBS and compare it with that of yttria-stabilized tetragonal zirconia polycrystals(Y-TZP).Methods:Bars of ATZ and Y-TZP were layered with veneering ceramics in accordance to the recommendation of the manufacturer.Half of each group(n = 10) was aged at 134℃.(under 2 bar pressure) in an autoclave for 48 h.Subsequently,all specimens were subjected to shear force in a universal testing machine.The interface and fractured surface of the specimens were evaluated using scanning electron microscopy and X-ray energy dispersive spectroscopy.Results:The initial mean SBS values in MPa±SD were 28.9±8.0 for ATZ and 26.2±7.6 for Y-TZP.After aging,the mean SBS values for ATZ and Y-TZP were 22.9±4.9 MPa and 22.8±6.9 MPa,respectively.Neither the differences between the SBS values of the ATZ and Y-TZP groups nor the influence of aging on all groups were statistically significant.Conclusions:The SBS between the ATZ core and the veneering ceramics was not affected by aging.The SBS of ATZ to veneering ceramics was not significantly different compared with that of Y-TZP.

Full-scale pullout tests of rock anchors in a limestone quarry focusing on bond failure at the anchor-grout and grout-rock interfaces

Rock anchors are a common safety measure for stabilising large-scale infrastructure,such as bridge towers,retaining walls,rock slopes and windmills.There are four principal failure modes for rock anchors:(a)tensile failure of the steel anchor,(b)anchor-grout interface failure,(c)grout-rock interface failure,and(d)rock mass uplift.Field tests were performed in a limestone quarry.These tests were designed to test failure modes B and C through pullout.In the tests of failure mode B,the shear stress on the anchor-grout interface is the largest at the top of the grout column and attenuates towards the distal end for small loads.The shear stress becomes uniformly distributed when the applied load is approximately 50%of the ultimate pullout load.The anchors designed to test failure mode C were installed with an endplate and had a higher toughness than the straight bar anchors.The shear stress on the grout-rock interface is the largest at the endplate and attenuates upward before slip starts along the interface.When the ultimate pullout load is reached,and the grout column starts to slip,the shear stress is approximately constant.The bond shear strength on the anchor-grout interface was approximately 20%of the uniaxial compressive strength of the grout,and the bond strength of the grout-rock interface was around 5%for that of the grout.The grout-rock interface is likely determined by whichever is weaker,the grout or the rock.

Study on Shear Strength Characteristics of Basalt-Concrete Bonding Interface Based on in-situ Direct Shear Test

In rock engineering,the shear strength of the basalt-concrete bonding interface is a key factor affecting the shear performance of hydroelectric dam foundations,embedded rock piles and rock bolts.In this study,30 sets of in-situ direct shear tests were conducted on the basalt-concrete bond interface in the Baihetan dam area to investigate the shear strength characteristics of the basalt-concrete bonding interface.The bonding interface contains two states,i.e.,the bonding interface is not sheared,termed as se(symbolic meaning see Table 1);the bonding interface is sheared with rupture surface,termed as si.The effects of lithology,Joints structure,rock type grade and concrete compressive strength on the shear strength of the concrete-basalt contact surface were investigated.The test results show that the shear strength of the bonding interface(s_(e)&s_(i))of columnar jointed basalt with concrete is greater than that of the bonding interface(s_(e)&s_(i))of non-columnar jointed one with the same rock type grade.When the rock type grade isⅢ_(2),fcol is 1.22 times higher than fncol and ccol is 1.13 times greater than cncol.The shear strength parameters of the basalt-concrete bonding interface differ significantly for different lithologies.The cohesion of the bonding interface(s_(i))of cryptocrystalline basalt with concrete is 2.05 times higher than that of the bonding interface(s_(i))of breccia lava with concrete under the same rock type grade condition.Rock type grade has a large influence on the shear strength of the non-columnar jointed basalt-concrete bonding interface(s_(e)&s_(i)).cnol increases by 33%when the grade of rock type rises fromⅢ_(1)toⅡ_(1).the rock type grade has a greater effect on bonding interface(s_(i))cohesion than the coefficient of friction.When the rock type grade is reduced fromⅢ_(2)toⅢ_(1),f_(ncol)′increases by 2%and c_(ncol)′improves by 44%.The shear strength of the non-columnar jointed basalt-concrete bonding interface(s_(e)&s_(i))increases with the increase of the compressive strength of concrete.When concrete compressive strength rises from 22.2 to 27.6 MPa,the cohesion increases by 94%.

不同清洁方法对高透氧化锆粘接强度和表面润湿性的影响

目的:研究不同清洁方法对唾液污染的高透氧化锆与自粘接树脂水门汀间剪切粘接强度和表面润湿性的影响。方法:制备80个高透氧化锆试件,随机分为5组(n=16),即对照组(无污染处理)、75%乙醇组、喷砂组、清洁剂组和大气压冷等离子体处理组等。测量表面接触角,测试剪切粘接强度,观察断裂模式。采用SPSS 26.0软件包对数据进行统计学分析。结果:大气压冷等离子体组的接触角最小(P<0.05);喷砂组、清洁剂组及大气压冷等离子体组的剪切粘接强度与对照组相比,无统计学差异(P>0.05),但均显著大于75%乙醇组(P<0.05);大气压冷等离子体组混合断裂模式增多。结论:喷砂、清洁剂及大气压冷等离子体清洁唾液污染的高透氧化锆,可获得与未被唾液污染前相当的粘接强度;大气压冷等离子体可显著提高高透氧化锆的表面润湿性。

超高性能混凝土-石材界面黏结性能试验研究

超高性能混凝土(UHPC)加固修复既有石结构中,UHPC与石材之间优异的黏结性能是保证加固效果的关键。因此,为探究UHPC-石材界面的黏结性能,通过劈裂抗拉试验和双L型剪切试验,考察不同界面处理方式对UHPC-石材界面黏结性能的影响。结果表明,UHPC-石材界面破坏模式主要分为三种,其中发生模式C破坏(石材UHPC破坏)时界面黏结强度最大。界面键槽处理方式能显著提高UHPC-石材界面黏结强度、界面剪切刚度,且在改变破坏形态的同时有效提升试件的延性,当键槽深度为20 mm时,试件表现出较好的界面黏结性能。另外,试件剪切荷载-位移曲线包含滑移前阶段和滑移后阶段,凿毛试件在滑移后阶段没有经历塑性变形。相同界面处理方式下,UHPC-石材的界面抗剪强度与界面劈裂抗拉强度呈正相关关系。

UHPC加固RC梁受力性能试验研究

为研究超高性能混凝土(UHPC)在RC梁加固中的适用性,通过双面剪切试验对UHPC-普通混凝土界面粘结性能进行分析。分别对RC梁受压、受拉区进行UHPC薄层加固,对未加固RC梁和受压、受拉区加固RC梁进行四点弯曲试验,对比正截面抗弯性能。结果表明:界面处理后,界面粘结性能大于普通混凝土抗剪强度。确定人工凿毛5 mm的界面处理方式。RC梁采用UHPC加固后,抗弯承载能力显著提高,受压区加固RC梁后受拉钢筋屈服荷载、试验峰值荷载分别提高了54.3%、52.2%,受拉区加固RC梁后受拉钢筋屈服荷载、试验峰值荷载分别提高了85.7%、96.9%;受拉钢筋屈服时受压、受拉区加固RC梁裂缝宽度较未加固RC梁分别减小了49.4%、72.3%;相同裂缝宽度0.2 mm下,受压、受拉区加固RC梁承载能力较未加固RC梁分别提高了1.4倍、6.5倍。提出UHPC加固RC梁极限抗弯承载力计算公式,该公式计算值与试验实测值吻合良好,且偏安全,可以指导UHPC加固RC梁设计。

工业气氛下电流场辅助Ni-ZrO_(2)陶瓷扩散焊

目的研究电流驱动下金属Ni向ZrO_(2)陶瓷的定向扩散以及界面化学反应,实现两者在工业气氛下的快速连接。方法在1200℃下采用独特的电流场耦合扩散焊连接系统制备Ni-ZrO_(2)扩散偶样品。利用扫描电子显微镜(SEM)、能谱仪(EDS)对不同直流电参数(电流密度0~5.09 mA/mm^(2))下制备的样品界面焊缝形貌以及原子分布进行观察和解析;测试Ni-ZrO2扩散偶的剪切强度,并结合不同样品的界面微观结构演变初步揭示电流场辅助Ni-ZrO_(2)的连接机制。结果电流场有效地促进了工业气氛下金属-陶瓷界面的交互作用,当电子流由金属Ni指向ZrO_(2)陶瓷时,界面反应层厚度随着电流密度的增大而持续增大;样品接头的连接强度随着电流强度的增大呈先升高后降低的趋势,在1200℃下通电(电流密度为3.82 mA/mm^(2))5 min时得到最佳剪切强度164 MPa。结论施加直流电场引发的金属电迁移效应和固体电解质陶瓷中氧离子的定向运动是促进界面互扩散以及化学反应的重要原因,而局部的过度“失氧”容易导致陶瓷结构和功能特性丧失。与高真空环境相比,在工业气氛下界面附近较高的氧浓度抑制了陶瓷变质,使焊接接头在电流强度较大时仍然保持了较高的剪切强度。

玄武岩纤维锚杆注浆液选型及性能试验研究

为评估不同注浆液对玄武岩纤维(BFRP)锚杆性能的影响并确定最佳的注浆液类型,选取了4种注浆材料,测试相同单轴抗压强度下注浆体的剪切性质,同时通过拉拔试验测试BFRP锚杆-注浆体的黏结性能,分析不同注浆液与BFRP锚杆的适配性。试验结果表明:普通硅酸盐水泥、加固型水泥、超细水泥的黏聚力都在2 MPa以上,碱激发剂水泥的黏聚力只有1.27 MPa,但是碱激发剂水泥的内摩擦角可达到34.91°,显著高于其他水泥;在黏结强度上,加固型水泥、碱激发剂水泥、超细水泥、普通硅酸盐水泥依次递减,加固型水泥在黏结强度和稳定性上均明显优于其他水泥。加固型水泥相较于其他水泥更具有优势,有助于玄武岩纤维锚固体整体性能的提升。

The shear strength of the interface between artificial rock and printed concrete at super-early ages

3D concrete printing has the potential to replace shotcrete for construction of linings of tunnels in hard rock.The shear strength of the interface between rock and printed concrete is vital,especially at super-early ages.However,traditional methods for testing the shear strength of the interface,e.g.,the direct shear test,are time-consuming and result in a high variability for fast-hardening printed concrete.In this paper,a new fast bond shear test is proposed.Each test can be completed in 1 min,with another 2 min for preparing the next test.The influence of the matrix composition,the age of the printed matrices,and the interface roughness of the artificial rock substrate on the shear strength of the interface was experimentally studied.The tests were conducted at the age of the matrices at the 1st,the 4th,the 8th,the 16th,the 32nd,and the 64th min after its final setting.A dimensionless formula was established to calculate the shear strength,accounting for the age of the printed matrices,the interface roughness,and the shear failure modes.It was validated by comparing the calculated results and the experimental results of one group of samples.

3种粘接剂分别粘接金属托槽至抛光及上釉锆瓷的粘接强度

目的:研究3种粘接剂对抛光及上釉锆瓷与正畸金属托槽粘接强度和耐久性的影响。方法:选用2种通用型粘接剂Single Bond Universal(SBU)和Prime&Bond Universal(PBU),以TransbondTMMIP(TM)为对照分别将抛光组、上釉组锆瓷与上颌中切牙金属托槽粘接,试样共6组(n=20)。水浴或水浴+冷热循环储存后测试全部试件剪切粘接强度(SBS),分析断裂形态以及粘接剂残留指数(ARI)。结果:粘接剂(P<0.001)和储存条件(P<0.001)显著影响锆瓷与托槽的剪切粘接强度;抛光或上釉(P=0.09)组间无统计学差异。SBU在各组中都表现出较强的粘接强度和较低的ARI,3种粘接剂间的ARI分数存在显著差异(P<0.001)。结论:粘接金属托槽与抛光及上釉锆瓷时,SBU较PBU和TM有更好的粘接性能。

加劲钢板与混凝土黏结面抗剪性能研究

为研究预应力混凝土梁加固所用的外贴加劲钢板与混凝土黏结面的抗剪性能,开展了钢混黏结面推出试验及有限元分析。通过推出试验测得黏结面的剪力-位移曲线、抗剪强度和破坏形态。对比有、无加劲肋试件的抗剪强度,得出加劲肋对黏结面剪切受力性能的影响。通过参数化分析,得出影响黏结面抗剪性能的关键设计参数。研究结果表明,加劲钢板与混凝土通过A级胶相连的抗剪黏结强度约为2 MPa,极限滑移变形约为0.2 mm,胶黏层与钢板剪切粘结失效为其破坏模式。将黏结强度由2 MPa提高至4 MPa,黏结面抗剪强度提高约38%,提高黏结强度可改善黏结面抗剪性能。加劲肋会增大黏结面的局部剪应力,降低黏结面抗剪强度,加固设计中宜考虑加劲肋对黏结面抗剪强度的削弱作用。

三种不同的口腔正畸牙用胶粘剂粘接性能比较研究

为研究不同材料不同环境下口腔正畸牙用胶粘剂剪切粘接强度,研究西湖巴尔光固化胶、非调拌型树脂胶与光固化玻璃离子胶3种胶粘剂搭配金属、陶瓷2种托槽,在唾液、血液以及混合污染、酸腐蚀条件下、不同加载方向下口腔正畸牙用胶粘剂剪切粘接强度。试验结果显示,西湖巴尔光固化胶剪切粘接强度最小,唾液环境对于粘接强度影响最大,即使在唾液污染环境非调拌型树脂胶的剪切粘接强度也最高。增加酸性腐蚀时长会提升胶粘剂的剪切粘接强度,45°加载比90°加载下口腔正畸牙用胶粘剂剪切粘接强度更高,说明外力施加方向也是影响胶粘剂剪切粘接强度的关键。

聚氨酯伸缩体桥梁无缝伸缩装置界面安全性研究

聚氨酯伸缩体无缝伸缩装置是一种新型结构,由聚氨酯伸缩体、角钢和混凝土组成,安装于桥梁拼接缝处。通过粘结拉伸和斜剪试验,系统分析了环境温度、混凝土基面处置工艺、角钢基面粘结剂涂布量和金刚砂洒布量等因素对界面安全性的影响,并通过足尺拉伸试验进行界面安全性验证。试验结果表明:温度越高,伸缩体与混凝土基面的粘结强度越低,打磨混凝土基面可显著提升粘结强度;在金刚砂洒布量为1.1 kg/m^(2)、粘结剂涂布量为0.6 kg/m^(2)的条件下,聚氨酯伸缩体与角钢的界面粘结性能最为优异,可有效保证无缝伸缩装置界面安全性。研究成果可为桥梁无缝伸缩缝的设计和应用提供科学依据。

Single Bond Universal粘结剂对树脂与玻璃陶瓷粘结强度的研究

目的:评估第八代通用型粘结剂Single Bond Universal对玻璃陶瓷与树脂的粘结强度。方法:选用玻璃陶瓷块40个,经砂纸打磨,超声波清洁后,随机分成4组,每组10个,分别用不同的瓷表面处理方式:对照组不处理,硅烷偶联剂处理组,HF酸处理组,HF酸+硅烷偶联剂处理组。各组经处理后于瓷块处理表面涂布Single Bond Universal粘结剂,粘结树脂制成试件。试件经冷热循环处理5000次后,将试件置于37℃蒸馏水中保存24 h取出,使用万能力学测试仪测试各试件的抗剪切强度,并用扫描电镜观察断裂面的断裂模式。结果:在试件的抗剪切强度方面,HF酸处理组(12.7851±0.8677)MPa、HF酸+硅烷偶联剂处理组(14.7292±0.8847)MPa明显高于硅烷偶联剂处理组(4.5890±1.1483)MPa和对照组(2.0637±0.2011)MPa,而HF酸处理组、HF酸+硅烷偶联剂处理组间差异无统计学意义。在断裂模式方面,HF酸处理组和HF酸+硅烷偶联剂处理组的断裂模式主要以内聚破坏和混合破坏为主。结论:当使用Single Bond Universal粘结剂粘结复合树脂与玻璃陶瓷时,不使用硅烷偶联剂即可达到较为理想的粘结效果,为临床使用Single Bond Universal粘结剂进行树脂修补玻璃陶瓷修复体缺损提供了理论依据。

An in Vitro Comparison of Bonding Effectiveness of Different Adhesive Strategies on Erbium:Yttrium-Alluminum-Garnet Laser Irradiated Dentin

Background: To date there is not a material considered ideal for the lased dentin. Objective: To compare the bond strength to human lased dentin of self-etch and etch-and-rinse adhesive systems, a self-adhesive resin composite and a glass-ionomer cement. Methods: Forty human molars were sectioned to obtain a 2 mm-thick slab of mid-coronal dentin. The occlusal surface of each slab was polished by SiC paper (P600) for 10 s. Then an half part of dentin slabs was randomly selected for receiving treatment with 2.94 μm Er:YAG laser (DEKA, Smart 2940D Plus) with 10 Hz at 100 mJ, pulse duration of 230 μs with contact tip. Dentin slabs were randomly divided into four groups (n = 10). Six conical frustum-shaped build-ups were constructed on the occlusal surface of each dentin slab using bonding agents (OptiBond Solo Plus Group 1;OptiBond All-in-one Group 2) combined with a resin composite (Premise Flow), self-adhesive resin composites (Vertise Flow Group 3) and a glass-ionomer cement (Ketac-Fil Group 4). Specimens were subjected to μSBS test. Data were analyzed by a mixed model and Tukey’s test. Results: Measured bond strengths were (mean ± standard deviation): 20.8 ± 5.5 MPa (laser treatment) and 15.6 ± 4.5 MPa (SiC paper) for Group 1, 18.9 ± 5.3 MPa (laser treatment) and 14.0 ± 4.3 MPa (SiC paper) for Group 2, 7.9 ± 2.8 MPa (laser treatment) and 4.3 ± 2.2 MPa (SiC paper) for Group 3, 4.7 ± 1.9 MPa (laser treatment) and 2.6 ± 1.2 MPa (SiC paper) for Group 4. The inferential analysis showed that the dentin laser treatment significantly affected the bond strength within each individual group. On dentin treated with laser the bond strengths recorded for build-ups constructed with etch and rinse and self-etch adhesive systems were significantly higher than those recorded for build-ups constructed with self-adhesive resin composite and glass-ionomer cement (p < 0.0001). Similarly, on dentin treated with SiC paper the bond strengths recorded for build-ups constructed with etch and rinse and self-etch adhesive systems were significantly higher than those recorded for build-ups constructed with self-adhesive resin composite and glass-ionomer cement (p < 0.0001). Conclusion: Er:YAG laser treatment has increased the shear bond strength of all the adhesive materials used.

Er:YAG激光和等离子体处理对氧化锆粘接性能的影响

目的 评价Er:YAG激光和等离子体处理对氧化锆与树脂水门汀粘接强度的影响。方法 制作36个氧化锆瓷块,随机分为对照组(A组)、喷砂组(B组)、Er:YAG激光组(C组)、Ar等离子体组(D组)、喷砂+Ar等离子体组(E组)和Er:YAG激光+Ar等离子体组(F组),每组6个。采用接触角测量仪、扫描电子显微镜对各试件表面进行检测,并计算剪切粘接强度。结果 C组氧化锆试件表面见凹坑状结构,粗糙度较A组增加(P <0.05);D组氧化锆试件表面形态未见明显改变,表面亲水性较A组显著提升(P <0.05);E组表面亲水性、剪切粘接强度与F组相似(P> 0.05),较其余各组显著提升(P <0.05)。结论 Er:YAG激光和Ar等离子体处理可提高氧化锆与树脂水门汀粘接强度,两者联合应用效果更好。

2种酸液热酸蚀对氧化锆表面形貌及粘接强度的影响

目的探讨2种酸液热酸蚀对氧化锆表面形貌和粘接强度的影响。方法制备10 mm×10 mm×2 mm的氧化锆试件(Ⅰ类)24个,3 mm×3 mm×2 mm的试件(Ⅱ类)20个,将其平均分为4组进行处理,即空白对照组(A组)、喷砂处理组(B组)、HCl热酸蚀组(C组)以及HF热酸蚀组(D组)。采用原子力显微镜(atomic force microscopy,AFM)、扫描电镜(scanning electron microscope,SEM)、X射线衍射仪(X-ray diffraction,XRD)和万能试验机等对氧化锆表面形貌及粘接强度进行观察和检测。采用SPSS 26.0软件包对实验数据进行单因素方差分析和最小显著性差异检验,XRD的检测结果采用MDI Jade 6软件和Origin 2019软件进行处理。结果C组和D组的形貌图像与B组截然不同,B组可见明显的粘接界面裂隙,D组具有最大的粗糙度(78.17±4.94)nm及最大的剪切粘接强度(25.09±4.09)MPa。结论与HCl相比,HF热酸蚀能使氧化锆形成更加均匀致密的多孔形貌,粗糙度和粘接强度也更大,不会造成明显的粘接界面裂隙及晶相转变。

不同粘接系统用于树脂陶瓷复合材料的体外实验研究

目的:研究不同粘接系统及老化处理对树脂陶瓷复合材料与牙本质间粘接强度的影响。方法:本研究使用了一种新型树脂陶瓷修复材料(Lava^(TM)Ultimate,优韧瓷)。在实验的第一部分,将制备好的离体牙随机分为3组,按照两步法自酸蚀通用型粘接系统、全酸蚀粘接系统、一步法自酸蚀通用型粘接系统将优韧瓷块与离体牙的牙本质面粘接,使用微机控制电子万能实验机测试每组粘接试件的静态断裂强度,并观察其断口形貌。实验第二部分则将以上3组粘接系统的剪切样本浸泡在3种不同酸碱度的溶液(可乐、苏打水、人工唾液)中,30 d后比较各组剪切强度间差异。结果:对于树脂陶瓷复合材料优韧瓷,一步法及两步法自酸蚀通用型粘接系统组的剪切强度皆优于全酸蚀粘接系统组,而一步法自酸蚀通用型粘接系统组与两步法自酸蚀通用型粘接系统组的粘接性能差异无统计学意义。3种粘接系统在不同浸泡液中浸泡老化后剪切强度均下降,但差异无统计学意义,浸泡液种类对剪切强度的影响也无统计学差异。结论:3种粘接系统对优韧瓷与牙体间的剪切强度均达到临床要求,且酸碱老化处理不影响3种粘接系统的剪切强度。

高延性水泥基材料钢桥面湿法黏接界面强度研究

为了推进湿法黏接技术在高延性水泥基材料(ECC)与钢桥面间的应用,需要研究水分及气候环境影响下ECC-钢桥面之间的界面黏结性能,通过制作ECC-钢板试件在模拟极端环境作用后进行室内试验。首先,以环氧树脂砂浆作为胶黏剂,采用湿法黏结的胶接结构形式制备ECC-钢板试件。然后,通过不同次数冻融循环和不同时长的湿热水浴对试件进行处理,用于模拟实际工程中冰冻和湿热两种极端气候环境的影响。最终,对处理后的试件进行拉拔试验和单面剪切试验,分析了ECC与钢板界面的抗剪强度和黏结强度。通过压剪试验研究其界面的抗剪强度准则对不同环境影响的结果进行了拟合,总结了极端气候环境影响下界面性能的变化规律。结果表明:以环氧树脂为黏结剂的钢桥面-ECC铺装层湿法连接技术连接效果良好;ECC-钢板界面的拉拔强度、剪切强度均随冻融循环次数的增加而降低,其降低趋势基本呈线性;ECC-钢板界面的拉拔强度、剪切强度均随在湿热环境时长的增加而降低,其降低趋势可用二次多项式拟合;界面的最大剪应力随界面压应力线性增大。研究结论为湿法黏结应用于ECC-钢桥面铺装提供了理论依据。

RelyX^(TM)Unicem和Variolink N粘接剂对Brilliant Crios树脂基陶瓷剪切粘接强度的研究

本研究旨在评估新型树脂基陶瓷Brilliant Crios与牙本质的剪切粘接强度,并与Vita Enamic和Lava Ultimate两种常用树脂基陶瓷材料进行对比。实验选用第7代通用型自粘接树脂水门汀RelyX^(TM)Unicem和全酸蚀树脂水门汀Variolink N两种粘接剂。通过制备牙本质和瓷块样品,按照粘接剂类型和材料种类分为六组进行粘接实验。在万能力学试验机上进行剪切粘接强度测试,分析并比较不同组别的剪切粘接强度。实验结果显示,Brilliant Crios在两种粘接剂下的粘接强度均满足临床应用要求,与Vita Enamic和Lava Ultimate具有可比性。本研究为Brilliant Crios树脂基陶瓷在临床应用中的粘接性能提供了理论依据和参考。