口腔疾病防治 ›› 2018, Vol. 26 ›› Issue (2): 95–98.doi: 10.12016/j.issn.2096-1456.2018.02.005

• 基础研究 • 上一篇    下一篇

Er:YAG激光照射对可切削二硅酸锂增强型玻璃陶瓷粘接性能的影响

侯晔坡1(), 沈仁泽2, 陈路沅1, 陈艺3, 江颖彤4, 李菁梅4, 高杰4()   

  1. 1. 南方医科大学南方医院口腔科,广东 广州 (510515)
    2. 厦门大学附属中山医院口腔科,福建 厦门 (361000)
    3. 广州医科大学附属第一医院骨科,广东省骨科矫形技术与植入材料重点实验室, 广东 广州(510120)
    4. 广州医科大学附属口腔医院·广州口腔疾病研究所·口腔医学重点实验室,广东 广州(510140)
  • 收稿日期:2017-09-26 修回日期:2017-10-18 出版日期:2018-02-20 发布日期:2018-08-31
  • 作者简介:

    【作者简介】 侯晔坡,硕士研究生在读, Email:464899885@qq.com

  • 基金资助:
    广东省科技计划项目(2014A020211017)

The effect of Er: YAG laser irradiation on bonding properties of IPS e.max CAD ceramics

Yepo HOU1(), Renze SHEN2, Luyuan CHEN1, Yi CHEN3, Yingtong JIANG4, Jingmei LI4, Jie GAO4()   

  1. 1. Department of Stomatology, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
    2. Department of Stomatology, Zhongshan Hospital, Xiamen University, Xiamen 361000, China
    3. Department of Orthopedics Surgery, 1 st Affiliated Hospital of Guangzhou Medical University, Guangdong Provincial Key Lab of Orthopedics Technology and Implant Materials, Guagnzhou 510120, China
    4. Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
  • Received:2017-09-26 Revised:2017-10-18 Online:2018-02-20 Published:2018-08-31

摘要:

目的 探讨不同脉冲能量的Er:YAG激光照射对可切削二硅酸锂增强型玻璃陶瓷(IPS e.max CAD)粘接性能的影响。方法 制作96个5 mm × 5 mm × 5 mm的IPS e.max CAD试件,依据预处理方式分为8组:对照组(A组)、氢氟酸酸蚀组(B组)、不同脉冲能量Er:YAG激光组(C组100 mJ、D组200 mJ、E组300 mJ、F组400 mJ、G组500 mJ、H组600 mJ),每组12个样本。通过原子力显微镜观察陶瓷表面微观形貌,并测试其剪切粘接强度(Shear Bond Strength,SBS)。结果 C~H组SBS均大于B组,其中F组SBS最大,为(24.12 ± 1.91) MPa,与B组相比差异具有统计学意义;原子力显微镜观察表面结构显示,A组光滑平整,B组形成均匀的针尖状凸起结构,激光组逐渐形成排列规则的圆柱状凸起结构,其中G、H组表面有破坏痕迹。结论 400 mJ Er:YAG激光照射可作为IPS e.max CAD陶瓷粘接前的有效预处理方法。

关键词: Er:YAG激光, 玻璃陶瓷, 粘接强度, 原子力显微镜, 微观形貌

Abstract:

Objective To investigate different Er:YAG laser power settings on the bonding properties of IPS e.max CAD ceramics. Methods 96 IPS e.max CAD ceramics blocks (5 mm × 5 mm × 5 mm) were prepared and randomly divided into 8 groups (n = 12), the untreated blocks served as the control, while one of the experimental groups was treated with 4.5% HF for 20 seconds, six remaining test group (C、D、E、F、G、H) were treated with different Er: YAG laser power settings: 100 mJ、200 mJ、300 mJ、400 mJ、500 mJ and 600 mJ. Morphology of the ceramic surface was observed by atomic force microscopy and its shear bond strength (SBS) was tested. Results Higher shear bond strength values were found in group C-H compared to group B, the highest is group F (24.12 ± 1.91) MPa. The difference was statistically significant. The atomic force microscope observation of the surface structure showed that the control group was smooth and flat, and the HF-like etching group formed a uniform needle-like convex structure. The laser group gradually formed a regularly arranged cylindrical convex structure, in which the surface of the G and H groups was damaged. Conclusion The Er: YAG laser power settings of 400 mJ can be used as an effective pretreatment method before bonding of IPS e.max CAD ceramic.

Key words: Er: YAG laser, IPS e.max CAD, Bonding strength, Atomic force microscope, Microphology

中图分类号: 

  • 783.1

表1

各组试件粘接剪切强度"

组别 剪切强度 P1 P2
A 6.50 ± 2.65 - -
B 10.29 ± 0.84 0.179 -
C 15.06 ± 1.06 0.005 0.064
D 15.58 ± 1.06 0.001 0.058
E 17.99 ± 0.88 < 0.001 0.003
F 24.12 ± 1.91 < 0.001 < 0.001
G 20.10 ± 1.65 < 0.001 < 0.001
H 22.74 ± 1.63 < 0.001 < 0.001

表2

各组试件粘接面破坏形式"

组别 界面破坏
(个)
内聚破坏
(个)
混合破坏
(个)
P1 P2
A 8 1 1 - -
B 2 6 2 0.008 -
C 4 0 6 0.488 0.014
D 4 1 5 0.649 0.053
E 3 5 2 0.027 0.590
F 0 8 2 < 0.001 0.131
G 2 7 1 0.004 0.893
H 3 7 0 0.009 0.814

图1

IPS e.max CAD陶瓷不同表面预处理后表面微观结构原子力显微镜图 a: A组; b: B组; c: C组; d: D组; e: E组; f: F组; g: G组; h: H组。"

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