切换至 "中华医学电子期刊资源库"
高级检索
中华口腔医学研究杂志(电子版)

中华口腔医学研究杂志(电子版) ›› 2017, Vol. 11 ›› Issue (04) : 211 -217. doi: 10.3877/cma.j.issn.1674-1366.2017.04.004

所属专题： 文献；

基础研究

铸造和激光熔融钴铬合金与瓷结合强度的比较
骆权1, 夏静1, 李洁银2, 林诗尧3, 渠艳3, 叶剑涛3, 廖隽琨3,†()   
  1. 1. 518000　深圳，南方医科大学附属深圳市妇幼保健院口腔病防治中心
    2. 522000　揭阳市人民医院口腔科
    3. 510120　广州，中山大学孙逸仙纪念医院口腔科
  • 收稿日期:2017-03-28 出版日期:2017-08-01
  • 通信作者: 廖隽琨

Comparison of the bond strength of selective laser melting and cast Cobalt-Chromium alloys to porcelain

Quan Luo1, Jing Xia1, Jieyin Li2, Shiyao Lin3, Yan Qu3, Jiantao Ye3, Juankun Liao3,†()   

  1. 1. Department of Stomatology, Children and Women Hospital of Shenzhen City Affiliated to Southern Medical University, Shenzhen 518000, China
    2. Department of Stomatology, Jieyang People′s Hospital, Jieyang 522000, China
    3. Department of Stomatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
  • Received:2017-03-28 Published:2017-08-01
  • Corresponding author: Juankun Liao
  • About author:
    Corresponding author: Liao Juankun, Email:
全文 ( ) 下载PDF ( ) 导出引用
引用本文：

骆权, 夏静, 李洁银, 林诗尧, 渠艳, 叶剑涛, 廖隽琨. 铸造和激光熔融钴铬合金与瓷结合强度的比较[J]. 中华口腔医学研究杂志(电子版), 2017, 11(04): 211-217.

Quan Luo, Jing Xia, Jieyin Li, Shiyao Lin, Yan Qu, Jiantao Ye, Juankun Liao. Comparison of the bond strength of selective laser melting and cast Cobalt-Chromium alloys to porcelain[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2017, 11(04): 211-217.

目的

研究传统铸造技术和选择性激光熔融（SLM）技术制作的钴铬合金与瓷的结合强度的差异。

方法

分别使用失蜡铸造法和SLM制作钴铬合金试件（25 mm × 3 mm × 0.5 mm），在试件表面中心区域熔附8 mm × 3 mm × 1.1 mm的瓷，使用ISO 9693规定的三点弯曲测试对金瓷试件进行金瓷结合强度测定。使用佩有X线能谱分析的扫描电镜观察试件的显微特征、元素成分、开裂试件开裂模式及残留瓷面积分数，使用金相显微镜观察合金试件金相结构。结合强度、残留瓷面积分数数据使用独立样本t检验进行统计学分析（α= 0.05）。

结果

铸造组金瓷结合强度为（32.93 ± 4.33）MPa，激光熔融组金瓷结合强度为（32.41 ± 3.21）MPa。两组间结合强度差异没有统计学意义（t= 0.095，P = 0.163），所有试件都为混合失败模式。残留瓷面积分数的定量结果为铸造组62.73 ± 7.34，激光熔融组79.67 ± 3.92，差异有统计学意义（t=-6.46，P<0.001）。激光熔融组比铸造组有更多的瓷残留。

结论

传统铸造法和SLM技术制作的钴铬合金金瓷结合强度无差异，在瓷黏附方面SLM技术优于铸造技术。

关键词: 选择性激光熔融技术, 钴铬合金, 金瓷结合强度
Objective

To compare the bond strength of selective laser melting (SLM) and cast Cobalt-Chromium (Co-Cr) alloys to porcelain.

Methods

Co-Cr alloy specimens (25 mm × 3 mm × 0.5 mm) were prepared using either a cast or CAD/CAM SLM methods. A 8 mm × 3 mm × 1.1 mm ceramic layer was fused to the central portion (8 mm × 3 mm) of the surface of the metal specimens. The bond strengths of the metal-ceramic were tested using a three-point bending test according to the ISO 9693 standard. Scanning electron microscopy and energy dispersive spectroscopy were used to determine the morphology, elemental composition, failure types, and area fraction of adherence porcelain. Metallographic microscope was used to observe the metallurgical structure of alloy specimens. The data of metal ceramic bond strength and area fraction of adherence porcelain were analyzed using independent sample t-test (α= 0.05) .

Results

The metal-ceramic bond strength of SLM and cast Co-Cr alloy were (32.41 ± 3.21) and (32.93 ± 4.33) MPa, respectively. No statistical difference was found between two groups (t= 0.095, P= 0.163) . After three-point bending test a mixture of adhesive and cohesive failure types was observed in all specimens. The area fraction of adherence porcelain of SLM and cast Co-Cr alloy was (79.67 ± 3.92) and (62.73 ± 7.34) , respectively. Significant differences were found between two groups (t=-6.46, P< 0.001) , suggesting that the SLM alloy surface had larger area of residual ceramic.

Conclusions

No difference was found in the metal-ceramic bond strength between SLM and cast Co-Cr alloy. In terms of the porcelain-bonding area, SLM alloys even had a greater advantage than cast alloys.

Key words: Selective laser melting, Cobalt-Chromium alloy, Metal-ceramic bond strength
表1 铸造和激光熔融试件的金瓷结合强度的比较
组别 试件数（个） 结合强度（MPa，±s） t值 P值
铸造组 10 32.93 ± 4.33 0.095 0.163
SLM组 10 32.41 ± 3.21 ? ?
图1 两组钴铬合金表面不同处理后的扫描电镜图
表2 铸造和激光熔融钴铬合金不同处理阶段表面元素含量（wt%）平均值（n= 5）
组别 处理阶段 O Al Co Cr Mo W
铸造组 喷砂 7 11 51 21 4 5
? 热处理 23 9 28 31 4 4
? 模拟烧结遮色瓷 23 8 28 34 3 3
SLM组 喷砂 7 11 52 22 5 4
? 热处理 24 8 28 34 3 3
? 模拟烧结遮色瓷 24 6 26 37 4 3
图2 两组钴铬合金金瓷界面的扫描电镜图
图3 两组钴铬合金金相结构
表3 铸造和激光熔融组残留瓷面积分数值和独立样本t检验结果
组别 试件数（个） AFAP(±s) t值 P值
铸造组 10 62.73 ± 7.34a 0.095 0.163
SLM组 10 79.67 ± 3.92b ? ?
图4 铸造试件（左侧）、激光熔融试件（右侧）瓷开裂表面肉眼观
[1]
付立定，史玉升.不锈钢粉末选择性激光熔化直接制造金属零件研究[D].武汉：华中科技大学，2008.
[2]
周刚，蔡道生，史玉升，等.金属粉末熔化快速成型技术的研究进展[J].航空制造技术，2009(3):43-46.
[3]
Kruth JP, Froyen L, Vaerenbergh JV，et al. Selective laser melting of iron-based powder[J]. Journal of Materials Processing Technology，2004，149(3):616-622.
[4]
Over C, Meiners W, Wissenbach K，et al. Selective laser melting：a new approach for the direct manufacturing of metal parts and tools[R]. 1st International Conferenceon Laser Assisted Net Shape Engineering，Germany：Frankfurt，2001.
[5]
杨永强，吴伟辉，来克娴，等.金属零件选区激光熔化直接快速成形工艺及最新进展[J].航空制造技术杂志，2006(2):73-76.
[6]
ISO 9693（E）. Metal-Ceramic Dental Restorative Systems[S]. 2nded. Switzerland：International Organization for Standardization，1999.
[7]
Oliveira de Vasconcellos LG, Silva LH, Reis de Vasconcellos LM，et al. Effect of airbone-particle abrasion and mechanic-thermal cycling on the flexural strength of glass ceramic fused to gold or cobalt-chromium alloy[J]. J Prosthodont，2011，20(7):553-560.
[8]
Ringle RD, Macker JR Jr, Fairhurst CW. An x-ray spectrometric technique for measuring porcelain-metal adherence[J]. J Dent Res，1983，62(8):933-936.
[9]
Lombardo GH, Nishioka RS, Souza RO，et al. Influence of surface treatment on the shear bond strength of ceramics fused to cobalt-chromium[J]. J Prosthodont，2009，19(2):103-111.
[10]
Uusalo EK, Lassila VP, Yli-Urpo AU. Bonding of dental porcelain to ceramic-metal alloys[J]. J Prosthet Dent，1987，57(1):26-29.
[11]
Sadeq A, Cai Z, Woody RD，et al. Effects of interfacial variables on ceramic adherence to cast and machined commercially pure titanium[J]. J Prosthet Dent，2013，90(1):10-17.
[12]
Yao L, Peng C, Wu J. Wettability and bond strength between leucite-reinforced dental porcelain sand Co-Cr alloy[J]. J Prosthet Dent，2013，110(6):515-520.
[13]
Jochen DG, Caputo AA, Matyas J. Effect of opaque porcelain application on strength of bond to silver-palladium alloys[J]. J Prosthet Dent，1990，63(4):414-418.
[14]
Bae EJ, Kim JH, Kim WC，et al. Bond and fracture strength of metal-ceramic restorations formed by selective laser sintering[J]. J Adv Prosthodont，2014，6(4):266-271.
[15]
Xiang N, Xin XZ, Chen J，et al. Metal-ceramic bond strength of Co-Cr alloy fabricated by selective laser melting[J]. J Dent，2012，40(6):453-457.
[16]
Akova T, Ucar Y, Tukay A，et al. Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain[J]. Dent Mater，2008，24(10):1400-1404.
[17]
Rathi S, Parkash H, Chittaranjan B，et al. Oxidation heat treatment affecting metal-ceramic bonding[J]. Indian J Dent Res，2011，22(6):877-878.
[18]
Lim HP, Kim JH, Lee KM，et al. Fracture load of titanium crowns coated with gold or titanium nitride and bonded to low-fusing porcelain[J]. J Prosthet Dent，2011，105(3):164-170.
[19]
Papazoglou E, Brantley WA. Porcelain adherence vs force to failure for palladium-gallium alloys：a critique of metal-ceramic bond testing[J]. Dental Mater，1998，14(2):112-119.
[20]
李勇，张飚，黄奇容，等.选择性激光熔融技术成形牙科钴铬合金性能的初步研究[J].口腔医学研究，2012，28(8):815-817,820.
[21]
Koutsoukis T, Zinelis S, Eliades G，et al. Selective Laser Melting Technique of Co-Cr Dental Alloys：A Review of Structure and Properties and Comparative Analysis with Other Available Techniques[J]. J Prosthodont，2015，24(4):303-312.
[22]
Qiu J, Yu WQ, Zhang FQ，et al. Corrosion behavior and surface analysis of a Co-Cr and two Ni-Cr dental alloys before and after simulated porcelain firing[J]. Eur J Oral Sci，2011，119(1):93-101.
[1] 李小宇, 郑美华, 王洁琪, 杨桂成, 何滔, 李劲松, 范松. 3D打印和铸造钴铬合金耐蚀性及力学稳定性比较[J]. 中华口腔医学研究杂志(电子版), 2016, 10(05): 327-332.
[2] 李洁银, 李瑞男, 刘朗, 廖隽琨, 叶秀华, 林诗尧, 叶剑涛. 铸造和切削钴铬合金与瓷结合强度的比较[J]. 中华口腔医学研究杂志(电子版), 2016, 10(01): 45-50.
[3] 叶剑涛, 李博华, 李洁银, 王希乾, 王璐, 叶秀华. 两种喷砂粒度对钯银合金金瓷结合强度的影响[J]. 中华口腔医学研究杂志(电子版), 2015, 09(01): 37-43.
阅读次数
全文


摘要

版权所有 中华医学会 中华医学电子音像出版社有限责任公司  京ICP备14006079号-1  网络出版服务许可证：(署)网出证(京)字第075号