改良液式冲蚀对3Y-TZP氧化锆基底与饰面瓷结合强度的影响

doi:10.19439/j.sjos.2017.01.006

摘要/Abstract

摘要： 目的探讨采用改良液式冲蚀方式对3Y-TZP氧化锆基底表面进行冲蚀后,对其与饰面瓷间结合强度的影响。方法制作[8 mm×8 mm×3 mm（±0.02）]氧化锆试件块174个,根据不同尺寸的刚玉磨粒、不同的喷砂压强、不同的喷砂时间,采用传统喷砂方式进行分组处理（实验组）,在氧化锆处理面上饰面瓷。表面未做处理的氧化锆试件直接上饰面瓷作为对照组,应用电子万能测力计检测各组试件与饰面瓷间的最大剪切力,计算剪切强度。分别用传统干式喷砂、改良液式冲蚀方式在相同条件下（150 μm,0.6 MPa,30 s）处理氧化锆试件块,用扫描电镜下观察处理面,再上饰面瓷,计算剪切强度,与对照组进行组间比较。采用 SPSS17.0 软件包对数据进行统计学分析。结果采用传统干式喷砂方式,在0.4 MPa压强作用下,以110 μm Al₂O₃喷砂粉喷砂20 s时,氧化锆与饰面瓷之间的剪切强度最大,显著大于对照组（P<0.05）;改良液式冲蚀组饰面瓷的结合强度显著大于传统干式喷砂处理组及对照组（P<0.01）。扫描电镜下可见,采用改良液式冲蚀的试件表面呈现均匀的粗糙面;采用传统干式喷砂处理的试件表面呈现不均匀的粗糙面,部分位置可见微裂纹。结论对3Y-TZP氧化锆表面喷砂,能够增强其与饰面瓷间的结合强度;改良液式冲蚀比传统干式喷砂更适用于3Y-TZP氧化锆的表面处理。

关键词: 氧化锆基底, 冲蚀, 喷砂, 结合强度

Abstract: PURPOSE: To evaluate the effect of bond strength between 3mol% yttrium-stabilized tetragonal zirconium polycrystal (3Y-TZP) zirconia framework after modified wet particle erosion and veneering porcelain. METHODS: A total of 174 [8 mm× 8 mm× 3 mm (±0.02)] specimens were prepared and then randomly divided into different groups according to different particle size, sandblasting pressure, sandblasting time through conventional sandblasting (experimental groups); specimens in the control group were not sandblasted. The bond strength between 3Y-TZP zirconia framework and veneering porcelain was measured using a universal testing machine. Statistical analysis was performed using SPSS17.0 software package. The bond strength of specimens treated by two methods-conventional sandblasting and modified wet particle erosion under the same condition (150 μm, 0.6 MPa, 30 s) were acquired, while the surface was analyzed microscopically before the specimens were veneered with the veneering ceramic under scanning electronic microscope (SEM). RESULTS: The bond strength of conventional sandblasting group under the condition (110 μm, 0.4 MPa,30 s) was maximal, and significantly higher than the control group (P<0.05). The bond strength of modified wet particle erosion group was significantly higher than the conventional sandblasting group and control group (P<0.01); SEM showed that the surface of specimen with modified wet particle erosion was homogeneously rough; the surface specimen with conventional sandblasting was heterogeneously rough, some microcracks were seen in some areas. CONCLUSIONS: Sandblasting can slightly enhance the bond strength between 3Y-TZP zirconia framework and veneering porcelain, modified wet particle erosion is recommended for 3Y-TZP zirconia framework surface treatment.

Key words: Zirconia framework, Erosion, Sandblasting, Shear bond strength

中图分类号:

R783.1

郭菁, 朱嘉, 柳红光, 朱洪水. 改良液式冲蚀对3Y-TZP氧化锆基底与饰面瓷结合强度的影响[J]. 上海口腔医学, 2017, 26(1): 26-31.

GUO Jing, ZHU Jia, LIU Hon-guang, ZHU Hong-shui. Evaluation of the effect of modified wet particle erosion on bond strength between 3Y-TZP zirconia framework and veneering porcelain[J]. Shanghai Journal of Stomatology, 2017, 26(1): 26-31.

参考文献

[1] Teng J, Wang H, Liao Y, et al. Evaluation of a conditioning method to improve core-veneer bond strength of zirconia restorations [J]. J Prosthet Dent, 2012, 107(6): 380-387.
[2] Christel P, Meunier A, Heller M, et al. Mechanical properties and short-term in vivo evaluation of yttrium-oxide-partially-stabilized zirconia [J]. J Biomed Mater Res, 1989, 23(1): 45-61.
[3] Kusy RP, Whitley JQ. Frictional resistances of metal-lined ceramic brackets versus conventional stainless steel brackets and development of 3-D friction maps[J]. Angle Orthod, 2001, 71(5): 364-374.
[4] 黄伟昊. 氧化锆全瓷冠的临床应用研究进展 [J]. 口腔材料器械杂志, 2011, 20(4): 199-201.
[5] Roediger M, Gersdorff N, Huels A, et al. Prospective evaluation of zirconia posterior fixed partial dentures: four-year clinical results [J]. Int J Prosthodont, 2010, 23(2): 141-148.
[6] Tinschert J, Schulze KA, Natt G, et al. Clinical behavior of zirconia-based fixed partial dentures made of DC-Zirkon: 3-year results [J]. Int J Prosthodont, 2008, 21(3): 217-222.
[7] Ortorp A, Kihl ML, Carlsson GE. A 3-year retrospective and clinical follow-up study of zirconia single crowns performed in a private practice [J]. J Dent, 2009, 37(9): 731-736.
[8] Tsumita M, Kokubo Y, Ohkubo C, et al. Clinical evaluation of posterior all-ceramic FPDs (Cercon): a prospective clinical pilot study [J]. J Prosthodont Res, 2010, 54(2): 102-105.
[9] Aboushelib MN, Kleverlaan CJ, Feilzer AJ. Microtensile bond strength of different components of core veneered all-ceramic restorations Part II: Zirconia veneering ceramics[J]. Dent Mater, 2006, 22(9): 857-863.
[10] Oh JW, Song KY, Ahn SG, et al. Effects of core characters and veneering technique on biaxial flexural strength in porcelain fused to metal and porcelain veneered zirconia[J]. J Adv Prosthodont, 2015, 7(5): 349-357.
[11] Fischer J, Grohmann P, Stawarczyk B. Effect of zirconia surface treatment on the shear strength of zirconia/veneering ceramic composites [J]. Dent Mater J, 2008, 27(3): 448-454.
[12] 隋华超, 付雅丽, 李长义. 表面多孔涂层对氧化锆与饰面瓷界面结合强度的影响[J]. 口腔颌面修复学杂志, 2013, 14(6): 354-357.
[13] Scherrer SS, Cattani-Lorente M, Vittecoq E, et al. Fatigue behavior in water of Y-TZP zirconia ceramics after abrasion with 30 μm silica-coated alumina particles[J]. Dent Mater, 2011, 27(2): e28-42.
[14] Chen JY, Leng YX, Tian XB, et al. Antithrombogenic investigation of surface energy and optical bandgap and hemocompatibility mechanism of Ti(Ta +5 )0 2 thin films[J]. Biomaterials, 2002, 23(12): 2545-2552.
[15] 钟群, 彭燕, 邬雪颖, 等. 不同表面处理方式对Kavo氧化锆基底与饰瓷结合强度的影响[J]. 上海口腔医学, 2014, 23(3): 300-303.
[16] Wang H, Aboushelib MN, Feilzer AJ. Strength influencing variables on CAD/CAM zirconia frameworks[J]. Dent Mater, 2008, 24(5): 633-638.
[17] 李诗卓, 董祥林. 材料的冲蚀磨损与微动磨损 [M]. 北京: 机械工业出版社, 1987.
[18] 邵荷生, 曲敬信. 摩擦与磨损[M]. 北京: 煤炭工业出版社, 1992.