义齿基托修复材料表面粗糙度对变形链球菌粘附的影响

目的：观察义齿基托修复材料的表面粗糙度对变形链球菌粘附的影响,为正确处理义齿基托的表面提供参考。方法：常规制备钴铬合金标准试件8mm×8mm×1mm共40件,分为5组,每组8件,分别按照五种不同的打磨方法处理试件表面,使用手持式表面粗糙度仪测量每组试件的表面粗糙度,通过体外粘附实验观察变形链球菌在不同表面粗糙度试件上的粘附情况,进行Pearson相关性检验和单因素方差分析。结果：各组试件的表面粗糙度与变形链球菌粘附量之间有显著相关性（P〈O．01）,各组试件细菌粘附量之间的差异具有显著的统计学意义（P〈0．01）。结论：义齿基托修复材料表面粗糙度与细菌的粘附量呈正相关,提示制作义齿时应通过正确的方法减小义齿的表面粗糙度。     

微波和水浴聚合方法对树脂基托义齿硬度和表面粗糙度影响的研究

目的研究微波和水浴聚合方法对树脂基托义齿硬度和表面粗糙度的影响。方法用微波法和水浴法分别制作20mm×20mm×2.5mm的树脂试件各8个,用洛氏硬度计测量其硬度及表面粗糙度轮廓仪测量其表面粗糙度。结果采用微波法和水浴法制作的树脂试件,洛氏硬度分别为39.9±0.9和39.8±0.6,差别无统计学意义（P〉0.05）;表面粗糙度（Ra）分别为0.25±0.02μm和0.26±0.03μm,差别无统计学意义（P〉0.05）。结论微波法和水浴法制作的树脂试件硬度和表面粗糙度无显著性差异,但微波法聚合时间较水浴法显著缩短。     

三种义齿基托材料抗白色念珠菌黏附性能的比较

目的比较3种义齿基托材料的抗白色念珠菌黏附性能。方法将热凝基托树脂、不碎胶树脂、弹性材料树脂义齿基托材料制备成粗糙度相同的标准试样,每组10个。用白色念珠菌(ATCC 90028)菌液对各试样黏附培养24h、48h、168h后,分析白色念珠菌对试件表面的黏附。结果在培养24h时,3组试件白色念珠菌黏附量差异无统计学意义(P0.05);培养48h时,除不碎胶树脂组和弹性材料树脂组外,其余两两之间差异均有统计学意义(P0.05);培养168h时,3组试件两两之间差异均有统计学意义(P0.05),白色念珠菌黏附量计数,热凝基托树脂不碎胶树脂弹性材料树脂。结论与传统热凝树脂基托相比较,不碎胶树脂基托和弹性材料树脂基托能减少白色念珠菌的黏附。     

Adherence of Candida albicans to three different denture base resins

目的 比较3种义齿基托材料的抗白色念珠菌黏附性能.方法 将热凝基托树脂、不碎胶树脂、弹性材料树脂义齿基托材料制备成粗糙度相同的标准试样,每组10个.用白色念珠菌(ATCC 90028)菌液对各试样黏附培养24h、48h、168h后,分析白色念珠菌对试件表面的黏附.结果 在培养24h时,3组试件白色念珠菌黏附量差异无统计学意义(P＞0.05);培养48h时,除不碎胶树脂组和弹性材料树脂组外,其余两两之间差异均有统计学意义(P＜0.05);培养168h时,3组试件两两之间差异均有统计学意义(P＜0.05),白色念珠菌黏附量计数,热凝基托树脂＞不碎胶树脂＞弹性材料树脂.结论 与传统热凝树脂基托相比较,不碎胶树脂基托和弹性材料树脂基托能减少白色念珠菌的黏附.     

不同抛光方法对钴铬合金铸造义齿表面粗糙度及精度的影响

目的研究不同抛光方法对钴铬合金铸造义齿表面粗糙度及精度的影响。方法(1)制作30个30mm×10mm×1.5mm钴铬合金试件,选择1组作为对照组,其余各组分别用5种方法抛光光整技术、电解、打磨、打磨后再电解、打磨后再光整,测量其表面粗糙度;(2)铸造钴铬合金基托30个,选择1组作为对照组,其余各组用5种方法抛光,在相当于上颌第二磨牙远中部位切断义齿基托与标准模型,测量基托组织面与标准模型间5个部位的间隙。用SPSS13.0软件对数据进行方差分析。结果(1)抛光前,试件表面粗糙度值最大(Ra3.38μm),手工打磨后再光整组粗糙度值最小(Ra0.19μm)。除光整组、电解组试件之间的差别无统计学意义外(P>0.05),其余各组差别均有极显著统计学意义(P<0.01)。(2)各组试件的精度值在抛光前、后无统计学差异(P>0.05)。结论手工打磨后再进行光整的铸件表面粗糙度最低,光整抛光方法对上颌铸造基托的精度无影响。     

不同基托树脂抗弯性能的比较

目的 为临床医生在基托树脂的选择上提供一个参考依据。方法 选用5种义齿基托材料，错成试件。在一定的实验条件下对试件加力，记录试件的断裂弯曲载荷。结果 不碎胶树脂断裂弯曲载荷最大，除常规热凝树脂组和BPS树脂组之间无显著性差异外，其余各组间均有显著性差异。结论 不碎胶基托树脂、BPS基托树脂和常规热凝树脂是较为理想的基托材料。大面积义齿基托不宜采用自凝和光聚合基托树脂。     

不同类型义齿清洁剂对热凝基托树脂物理机械性能的影响

目的：观察不同类型义齿清洁剂对热凝基托树脂物理机械性能的影响。方法：将同样规格的热凝基托树脂试件,按使用说明分别浸泡在 Polident 清洁片或 Steradent 清洁片或0．5％次氯酸钠溶液和蒸馏水中60 h,处理后的试件在万能材料试验机和表面粗糙度测试仪上分别测其弯曲强度、弹性模量（n ＝10）和表面粗糙度（n ＝10）。结果：Polident、Steradent 对热凝基托树脂的弯曲强度和弹性模量的影响与蒸馏水组相比差异无统计学意义（P ＞0．05）,0．5％次氯酸钠组的弯曲强度和弹性模量小于其他组（P ＜0．05）;热凝基托树脂粗糙度4组之间差异无统计学意义（P ＞0．05）。结论：Polident、Steradent 均不影响热凝基托树脂的物理机械性能,0．5％次氯酸钠对热凝基托树脂的粗糙度无影响,而使其弯曲强度及弹性模量有所降低。     

五种抛光方法对玻璃陶瓷表面粗糙度的影响研究#br#

目的    比较临床上5种常用抛光方法对IPS e.max Press玻璃陶瓷调磨后表面粗糙度的影响。方法    选取临床常用修复材料IPS e.max Press玻璃陶瓷制作试件30个,随机分成6组（每组5个试件）,分别为对照组（常规上釉）、砂石组（绿色碳化硅砂石+氧化铝白砂石依次混合打磨抛光）、松风组（松风Ceramaster精细烤瓷砂石抛光）、EVE组（EVE氧化锆砂石抛光）、道邦组（道邦弹性瓷砂石抛光）、3M组（3M Sof-LexTM抛光套装）。常规调磨后按照各自不同的整体抛光打磨方法分别对试件表面依次进行抛光,扫描电镜下观察各组抛光后试件的表面形态,检测各组抛光后试件的表面粗糙度Ra值。结果　扫描电镜下观察可见3M组和道邦组抛光后试件表面较为平整光滑,划痕较少,与对照组类似;而砂石组和松风组试件表面划痕明显并伴有明显的凹坑;EVE组划痕较少且划痕条纹较平整,方向一致,有少许凹痕较对照组明显。各组抛光后试件的表面粗糙度Ra值由小到大顺序排列为：3M组［（0.207 ± 0.016）μm］、对照组［（0.208 ± 0.015）μm］、道邦组［（0.216 ± 0.025）μm］、EVE组［（0.315 ± 0.017）μm］、松风组［（0.375 ± 0.030）μm］、砂石组［（0.379 ± 0.017）μm］;砂石组、松风组、EVE组Ra值均明显大于对照组（均P < 0.05）,而3M组、道邦组与对照组之间的差异无统计学意义（P > 0.05）。结论　5种抛光方法均能有效改善玻璃陶瓷表面粗糙度,不同抛光方法对IPS e.max Press玻璃陶瓷的抛光效果有一定的差异,以3M Sof-LexTM抛光套装抛光效果较佳。     

不同磨光方法对弹性义齿基托表面粗糙度影响的实验研究

目的:研究不同磨光处理对弹性义齿基托表面粗糙度的影响,为临床选择合适的磨光方法提供参考。方法:常规制作弹性基托试件90个,随机分为3组,分别采用硅橡胶磨头(1#-3#),金刚砂磨头(001#、002#),砂纸卷(500目、1000目、1500目)粗磨,采用布轮沾水,布轮沾抛光蜡,布轮沾抛光蜡和亮托抛光浆细磨抛光,利用表面粗糙度检查仪测定其粗糙度,扫描电镜观察磨光后的表面形貌,然后对检测结果进行统计学分析。结果:表面粗糙度检查仪检测:不同粗磨方法样本组的表面粗糙度(Ra值)的平均值比较:砂纸组<硅橡胶磨头组<金刚砂组,统计学上存在显著性差异(P<0.001);各组抛光方法表面粗糙度(Ra值)的平均值比较:布轮沾抛光膏和亮托抛光浆组<布轮沾抛光膏组<布轮沾水组,统计学上存在显著性差异(P<0.001)。扫描电镜观察:经金刚砂粗磨,试件表面粗糙,划痕较多,较深;经硅橡胶磨头粗磨,试件表面较光滑,划痕较浅;经1500目砂纸粗磨,试件表面最光滑,划痕最浅。经布轮沾水抛光,试件表面粗糙,划痕较多,较深;经布轮沾抛光蜡抛光,试件表面较光滑,划痕较浅;经布轮沾抛光蜡和亮托抛光浆抛光,试件表面最平滑。结论:经砂纸;硅橡胶磨头;金刚砂处理弹性义齿试件,获得不同的表面粗糙度,经1500目砂纸和硅橡胶磨头处理的试件表面平滑。经布轮沾抛光蜡,布轮沾亮托抛光浆抛光弹性义齿试件表面,表面粗糙度得到显著降低,试件表面平滑。弹性义齿试件不同的粗磨和抛光方法之间存在交互作用,经1500目砂纸粗磨和布轮沾抛光蜡和亮托抛光浆处理后,可以获得较低的粗糙度值,试件表面最平滑。     

硅烷偶联剂的用量对PMMA/纳米ZrO2复合材料挠曲性能的影响

目的：研究硅烷偶联剂Z-6030的不同用量对聚甲基丙烯酸甲酯（PMMA）／纳米ZrO2复合材料挠曲强度的影响。方法：采用不同用量的硅烷偶联剂Z-6030，在丙酮溶液中对纳米ZrO2颗粒进行表面修饰，将经过表面修饰的纳米ZrO2颗粒按照3．0％的添加量，利用原位聚合生成法，与义齿基托树脂（聚甲基丙烯酸甲酯，PMMA）11型粉剂及液剂聚合生成分散良好的PMMA／纳米ZrO2义齿基托复合材料，参照IS01567：1999的标准，制作实验组的标准试件。用未添加纳米ZrO2颗粒及偶联剂的义齿基托树脂（聚甲基丙烯酸甲酯，PMMA）Ⅱ型粉剂及液剂制作普通基托组的标准试件。用添加未经表面修饰的纳米ZrO2颗粒的义齿基托树脂（聚甲基丙烯酸甲酯，PMMA）Ⅱ型粉剂及液剂制作对照组的标准试件。用三点弯曲试验测试材料的挠曲强度，采用SAS6．12软件包对结果进行单因素方差分析。结果：硅烷偶联剂Z-6030的用量为3．5％组的挠曲强度最大，与普通基托组、对照组、2．0％组、4．0％组、4．5％组、5．0％组有显著性差异（P〈0．05），0．5％组、1．0％组、1．5％组、2．5％组、3．0％组、3．5％组各组间的挠曲强度差异无统计学意义（P〉0．05）。0．5％组、1．0％组、1．5％组、2．0％组、2．5％组、3．0％组、4．0％组、4．5％组、5．0％组、普通基托组及对照组各组之间的挠曲强度的差异无统计学意义（P〉0．05）。结论：适当用量的硅烷偶联剂Z-6030可以提高PMMA／纳米ZrO2义齿基托复合材料的挠曲强度，硅烷偶联剂Z-6030的最佳用量为纳米ZrO2颗粒质量的3．5％。     

喷砂结合化学处理对软衬材料粘结效果的影响

[摘要]目的：研究喷砂结合化学处理对硅橡胶软衬材料与基托树脂间粘结强度及基托树脂挠曲强度的影响。方法：制备48块30mm×10mm×7．5mm热凝聚甲基丙烯酸甲酯树脂块,每2个树脂块配成一个试件,24个试件随机分为4组,每组6个试件,即：（1）喷砂组：喷嘴与试件轻接触,采用250txm的氧化铝,在0．62MPa压力下喷砂30S;（2）喷砂＋丙酮组：粘结面喷砂处理同前,喷砂后的粘结面浸泡在丙酮溶液中30S;（3）喷砂＋甲基丙烯酸甲酯单体组（后简称单体）：粘结面喷砂处理同上,喷砂后的树脂块粘结面浸泡在甲基丙烯酸甲酯溶液中180S;（4）对照组：表面不处理。每个试件的两树脂块间衬以3mm厚的软衬材料,冷热循环5000次后,置于万能测试机上,以5mm／min的加载速度测试其拉伸粘结强度。另制备24块65mm×10mm×3．3mm长方体树脂块,分组及表面处理同前,涂布软衬材料粘结剂后测试挠曲强度。结果：喷砂组、喷砂＋丙酮组、喷砂＋甲基丙烯酸甲酯组及对照组试件的拉伸粘结强度分别为（1．31±0．45）MPa、（1．75±0．34）MPa、（1．96±0．50）MPa及（0．90±0．17）MPa。喷砂组与对照组间差别无统计学意义（P〉0．05）。喷砂＋丙酮组及喷砂＋单体组的拉伸粘结强度与对照组相比有统计学差异（P〈0．05）;喷砂＋丙酮组与喷砂＋单体组组间比较无统计学差异;四组间挠曲强度均无统计学差异（P〉0．05）。结论：喷砂结合化学处理树脂表面能增强硅橡胶软衬材料与基托树脂间的粘结强度,且对基托树脂挠曲强度没有影响。     

Measurement of Interfacial Porosity at the Acrylic Resin/Denture Tooth Interface

Purpose: Small pores of almost uniform shape and size are common in polymeric materials; however, significant porosity can weaken a denture base resin and promote staining, harboring of organisms such as Candida albicans , and bond failures between the artificial tooth and denture base resin. The aim of this study was to investigate the porosity at the interface of one artificial tooth acrylic resin (Trilux, copolymer of polymethyl methacrylate, ethylene glycol dimethacrylate, and color pigments) and three denture base resins: Acron MC (microwave-polymerized), Lucitone 550 (heat-polymerized), and QC-20 (heat-polymerized).
Materials and Methods: Ten specimens of each denture base resin with artificial tooth were processed. After polymerization, specimens were polished and observed under a microscope at 80× magnification. The area of each pore present between artificial tooth and denture base resin was measured using computer software, and the total area of pores per surface was calculated in millimeter square. The Kruskal–Wallis test was performed to compare porosity data (α= 0.05).
Results: Porosity analysis revealed the average number of pores (n), area range (S, mm²), and diameter range (d, μm) for Acron MC (n = 23, S = 0.001 to 0.0056, d = 35 to 267), Lucitone 550 (n = 13, S = 0.001 to 0.005, d = 35 to 79), and QC-20 (n = 19, S = 0.001 to 0.014, d = 35 to 133). The analyses showed that there were no statistically significant differences among the groups ( p = 0.7904).
Conclusions: Within the limitations of this in vitro study, it was concluded that the denture base resins evaluated did not affect porosity formation at the artificial tooth/denture base resin interface.     

3种树脂基托试件微生物黏附的研究

目的比较BPS注塑树脂、热凝基托树脂和不碎胶树脂表面的微生物黏附能力。方法将BPS注塑树脂、热凝基托树脂和不碎胶树脂试件进行微生物体外黏附实验,采用菌落形成单位计数法测定血链球菌、黏性放线菌和白色假丝酵母菌黏附量的大小。结果血链球菌和白色假丝酵母菌黏附实验中,培养24、48、168h后,热凝基托树脂组与BPS注塑树脂组和不碎胶树脂组间微生物黏附量差异有统计学意义（P〈0.001）,BPS注塑树脂组和不碎胶树脂组间微生物黏附量差异无统计学意义（P〉0.05）。在黏性放线菌黏附实验中,培养24h时,热凝基托树脂组和BPS注塑树脂组间微生物黏附量差异有统计学意义（P〈0.05） 培养48、168h时,热凝基托树脂组与不碎胶树脂组和BPS注塑树脂组间微生物黏附量差异有统计学意义（P〈0.05）。结论BPS注塑树脂和不碎胶树脂较热凝基托树脂更能减少血链球菌、黏性放线菌和白色假丝酵母菌在其表面的黏附。     

Shear Bond Strength of Denture Teeth to Heat‐ and Light‐Polymerized Denture Base Resin

Purpose: To evaluate the shear bond strengths of highly cross‐linked denture teeth bonded to heat‐polymerized poly(methyl methacrylate) (PMMA) or a light‐polymerized urethane dimethacrylate (UDMA) denture base resin with or without a diatoric and with or without an acrylate bonding agent. Materials and Methods: The denture base resins tested were Lucitone 199 (heat‐polymerized PMMA) and Eclipse (light‐polymerized UDMA). One hundred sixty mandibular central incisor denture teeth were divided into four groups (n = 40): group 1: ground surface as control; group 2: ground surface with diatoric; group 3: ground surface with bonding agent; group 4: ground surface with bonding agent and diatoric. Half of each group (n = 20) was processed with either heat‐ or light‐polymerized resin. All specimens were treated with thermocycling for 1000 cycles, alternating between 5 and 55°C with a dwell time of 30 seconds. Half the specimens in each group were treated with cyclic loading at 22 N for 14,400 cycles at 1.5 Hz. All specimens were tested with shear load to failure. Data were analyzed with student's t‐test, 2‐ and 3‐way ANOVA, and Dunnett's T3 method (p < 0.05). Results: Statistical analysis demonstrated no significant effect on shear bond strength from cyclic loading. For the Lucitone 199 (L) specimens, mean shear bond strengths and standard deviations were (N) 66.5 ± 28.4, 72.7 ± 31.5, 80.6 ± 17.1, and 76.9 ± 21.9 for groups 1L, 2L, 3L, and 4L, respectively. For the Eclipse (E) specimens, mean shear bond strengths and standard deviations were (N) 3.7 ± 1.2, 7.3 ± 3.3, 90.0 ± 20.7, and 94.2 ± 17.8 for groups 1E, 2E, 3E, and 4E, respectively. No statistically significant differences in shear bond strengths were noted for the Lucitone 199 groups (p= 0.11). Eclipse shear bond strengths were significantly higher in groups 3E and 4E than in groups 1E and 2E (p≤ 0.05). In a 3‐way ANOVA for groups 3 and 4, the shear bond strengths for the Eclipse specimens were significantly higher than the Lucitone 199 specimens (p= 0.01). Conclusions: When evaluating the shear bond strength of IPN denture teeth to denture base resins, specimens using an acrylate bonding agent with the Eclipse (light‐polymerized) resin yielded significantly higher shear bond strengths than all of the Lucitone 199 groups and the Eclipse resin groups without a bonding agent.     

3种塑料基托与塑料牙结合强度的微拉伸测试研究

目的测试3种塑料基托材料与人工牙结合后的微拉伸强度。方法3种基托材料:第1组,LUCITONE199;第2组,Palapress vario;第3组,SR Ivocap分别与人工牙制作样本,用Isomet低速切割机流水冲洗下制备成截面为1.0mm×1.0mm的条状试件,测试微拉伸强度。结果第1组(24.5±9.70)MPa的微拉伸强度高于第2组(15.5±3.31)MPa,差异有统计意义;第3组(18.3±4.92)MPa与前两组之间均无统计差异。结论传统的加热聚合树脂基托材料在结合性能方面高于高压灌注的树脂基托,高压灌注联合加热聚合方式的树脂基托与前两者的微拉伸强度均未见统计学差别。     

单氟磷酸钠对口腔义齿基托树脂材料力学性能的影响

目的：将单氟磷酸钠按一定比例添加到聚甲基丙烯酸甲酯义齿基托材料中,探讨不同用量的单氟磷酸钠加入可摘局部义齿的基托树脂后,对其力学性能的影响。方法：将单氟磷酸钠0、10％、15％、20％、25％5种不同质量分数的热凝和自凝树脂制备成大小为60mm×8mm×4mm的含氟树脂块共180个并按各种质量分数随机分为3组,分别进行冲击强度、抗弯曲强度、50牛顿力作用下横向弯曲值3项指标测试。记录结果后进行计算和统计分析。结果：单氟磷酸钠质量分数为20％以下各组抗弯曲强度、冲击强度与对照组无显著差异（P〉0．05）,50牛顿力作用下平均横向弯曲值在国家标准内;单氟磷酸钠质量分数为25％时抗弯曲强度、冲击强度与对照组有显著差异（P〈0．05）,50牛顿力作用下平均横向弯曲值超出国家标准外。结论：将质量分数0-20％的单氟磷酸钠添加到聚甲基丙烯酸甲酯义齿基托材料中不会影响其力学性能,当单氟磷酸钠质量分数超过25％时将明显影响基托材料的力学性能。     

Effect of Microwave Disinfection Procedures on Torsional Bond Strengths of Two Hard Chairside Denture Reline Materials

PURPOSE: This study evaluated the potential effects of denture base resin water storage time and an effective denture disinfection method (microwave irradiation at 650 W for 6 minutes) on the torsional bond strength between two hard chairside reline resins (GC Reline and New Truliner) and one heat-polymerizing denture base acrylic resin (Lucitone 199). MATERIALS AND METHODS: Cylindrical (30 x 3.9 mm) denture base specimens (n= 160) were stored in water at 37 degrees C (2 or 30 days) before bonding. A section (3.0 mm) was removed from the center of the specimens, surfaces prepared, and the reline materials packed into the space. After polymerization, specimens were divided into four groups (n= 10): Group 1 (G1)--tests performed after bonding; Group 2 (G2)--specimens immersed in water (200 ml) and irradiated twice (650 W for 6 minutes); Group 3 (G3)--specimens irradiated daily until seven cycles of disinfection; Group 4 (G4)-specimens immersed in water (37 degrees C) for 7 days. Specimens were submitted to a torsional test (0.1 Nm/min), and the torsional strengths (MPa) and the mode of failure were recorded. Data from each reline material were analyzed by a two-way analysis of variance, followed by Neuman-Keuls test (p= 0.05). RESULTS: For both Lucitone 199 water storage periods, before bonding to GC Reline resin, the mean torsional strengths of G2 (2 days--138 MPa; 30 days--132 MPa), G3 (2 days--126 MPa; 30 days--130 MPa), and G4 (2 days--130 MPa; 30 days--137 MPa) were significantly higher (p < 0.05) than G1 (2 days--108 MPa; 30 days--115 MPa). Similar results were found for Lucitone 199 specimens bonded to New Truliner resin, with G1 specimens (2 days-73 MPa; 30 days--71 MPa) exhibiting significantly lower mean torsional bond strength (p < 0.05) than G2 (2 day--86 MPa; 30 days--90 MPa), G3 (2 days--82 MPa; 30 days--82 MPa), and G4 specimens (2 days--78 MPa; 30 days--79 MPa). The adhesion of both materials was not affected by water storage time of Lucitone 199 (p > 0.05). GC reline showed a mixed mode of failure (adhesive/cohesive) and New Truliner failed adhesively. CONCLUSIONS: Up to seven microwave disinfection cycles did not decrease the torsional bond strengths between the hard reline resins, GC Reline and New Truliner to the denture base resin Lucitone 199. The effect of additional disinfection cycles on reline material may be clinically significant and requires further study.     

不同的表面处理对Sirona CEKEC Blocs陶瓷表面粗糙度的影响

目的 比较不同表面处理对Sirona CEREC Blocs陶瓷表面粗糙度的影响.方法 按照不同的表面处理方式将试件分为7组：对照组（A）、自身上釉组（B）、釉膏上釉组（C）、2组不同松风抛光方案组（D、E）,2组不同EVE抛光方案组（F、G）,测量试件表面处理后的粗糙度值,体视显微镜定性分析试件表面形貌.结果 各组粗糙度值依次为：A组（0.139±0.010）μ m、B组（0.129±0.006）μm、C组（0.090±0.029） μm、D组（0.145±0.009）μ m、E组（0.101±0.007）μ m、F组（0.172±0.016）μ m、G组（0.278±0.027）μ m;A组与C组、D组与E组、D组与G组、E组与F组、E组与G组及F组与G组之间均有显著性差异（P＜0.05）,A组与B组、C组与E组及D组与F组之间均无统计学差异（P＞0.05）：体视显微镜分析结果与粗糙度值分析结果一致.结论 釉膏上釉较其它表明处理方式效果好,不同的抛光工具对Sirona CEREC Blocs陶瓷的抛光效果不同,其中松风抛光工具抛光效果堪比釉膏上釉的效果.