Evaluation of Physical Changes and Bond Properties of Monolithic Zirconia Following Surface Treatment with Alumina and Synthetic Diamond Particles: A Comparative X-ray Diffraction Analysis.

Q3 Dentistry
Arshi I Kazi, Ramandeep Dugal, Pallavi Madanshetty, Aamir Z Godil, Kashif Y Gandhi, Anam M Mukadam
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引用次数: 0

Abstract

Aim: The aim of this study was to compare and evaluate the phase transformation and effect on the bond strength and fracture toughness of monolithic zirconia after surface treatment with alumina and synthetic diamond particles.

Materials and methods: Forty samples of monolithic sintered zirconia discs (Y-TZP) were divided into two groups of 20 samples each. Group A - air abrasion with alumina particles (n = 20); group B - air abrasion with synthetic diamond particles (n = 20). Pretreatment phase and posttreatment of each zirconia sample from group A and group B were evaluated using an X-ray diffraction machine. The surface roughness of each zirconia sample was evaluated using a profilometer. Composite discs were fabricated and bonded to the air-abraded surface of each zirconia sample from group A and group B using a dual-cured resin cement, respectively. These samples were mounted in an acrylic block to determine the bond strength of zirconia with resin cement using a universal testing machine. This was followed by a fracture toughness test of the samples using a Vickers indentation hardness tester. The results were subjected to statistical analysis using a t-test, and relevant statistical conclusions were drawn.

Results: The mean ± SD of monoclinic content in group A (alumina particles) and group B (synthetic diamond particles) was 0.82 ± 0.010% and 0.76 ± 0.015%, respectively. The mean ± SD of surface roughness in group A (alumina particles) and group B (synthetic diamond particles) was 0.507 ± 0.106 and 0.513 ± 0.116 µm, respectively, and the mean ± SD of bond strength in group A (alumina particles) and group B (synthetic diamond particles) was 6.11 ± 1.47 and 6.49 ± 0.83 MPa, respectively. The mean ± SD of fracture toughness in group A (alumina particles) and group B (synthetic diamond particles) was 2.63 ± 0.46 0.5 and 5.70 ± 1.03 MPam0.5, respectively. p < 0.05 was considered statistically significant.

Conclusion: The distribution of mean monoclinic content was significantly higher in zirconia samples abraded by alumina (Group A) as compared to synthetic diamond particles (Group B). The mean surface roughness and bond strength results were statistically insignificant between both groups. The distribution of mean fracture toughness was significantly higher in group B compared to group A.

Clinical significance: Synthetic diamond particles for air abrasion of Y-TZP can be a promising alternative to alumina as they cause minimal changes in the structural integrity without compromising the bond strength. How to cite this article: Kazi AI, Dugal R, Madanshetty P, et al. Evaluation of Physical Changes and Bond Properties of Monolithic Zirconia Following Surface Treatment with Alumina and Synthetic Diamond Particles: A Comparative X-ray Diffraction Analysis. J Contemp Dent Pract 2024;25(12):1110-1117.

氧化铝和人造金刚石颗粒表面处理后整体氧化锆的物理变化和结合性能评估:X 射线衍射对比分析。
目的:本研究旨在比较和评估氧化铝和人造金刚石颗粒表面处理后整体氧化锆的相变及其对结合强度和断裂韧性的影响:将 40 个整体烧结氧化锆盘(Y-TZP)样品分为两组,每组 20 个样品。A 组--氧化铝颗粒气磨(n = 20);B 组--人造金刚石颗粒气磨(n = 20)。使用 X 射线衍射仪对 A 组和 B 组每个氧化锆样品的前处理阶段和后处理阶段进行评估。使用轮廓仪评估每个氧化锆样品的表面粗糙度。使用双固化树脂粘接剂制作复合材料盘,并分别粘接到 A 组和 B 组每个氧化锆样品的气蚀表面上。将这些样本安装在丙烯酸块中,使用万能试验机测定氧化锆与树脂水泥的粘接强度。然后使用维氏硬度计对样品进行断裂韧性测试。使用 t 检验对结果进行统计分析,并得出相关统计结论:结果:A 组(氧化铝颗粒)和 B 组(人造金刚石颗粒)的单斜含量平均值(± SD)分别为 0.82 ± 0.010% 和 0.76 ± 0.015%。A 组(氧化铝颗粒)和 B 组(人造金刚石颗粒)表面粗糙度的平均值(± SD)分别为 0.507 ± 0.106 µm 和 0.513 ± 0.116 µm;A 组(氧化铝颗粒)和 B 组(人造金刚石颗粒)结合强度的平均值(± SD)分别为 6.11 ± 1.47 MPa 和 6.49 ± 0.83 MPa。A 组(氧化铝颗粒)和 B 组(人造金刚石颗粒)断裂韧性的平均值(± SD)分别为 2.63 ± 0.46 0.5 MPam0.5 和 5.70 ± 1.03 MPam0.5:与合成金刚石颗粒(B 组)相比,氧化铝研磨的氧化锆样品(A 组)的平均单斜含量分布明显更高。两组的平均表面粗糙度和结合强度结果在统计学上差异不大。与 A 组相比,B 组的平均断裂韧性分布明显更高:用于 Y-TZP 气磨的合成金刚石颗粒是氧化铝的一种很有前途的替代品,因为它们对结构完整性的改变很小,而且不会影响粘接强度。本文引用方式Kazi AI, Dugal R, Madanshetty P, et al. Evaluation of Physical Changes and Bond Properties of Monolithic Zirconia Following Surface Treatment with Alumina and Synthetic Diamond Particles:X 射线衍射对比分析。J Contemp Dent Pract 2024;25(12):1110-1117.
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来源期刊
Journal of Contemporary Dental Practice
Journal of Contemporary Dental Practice Dentistry-Dentistry (all)
CiteScore
1.80
自引率
0.00%
发文量
174
期刊介绍: The Journal of Contemporary Dental Practice (JCDP), is a peer-reviewed, open access MEDLINE indexed journal. The journal’s full text is available online at http://www.thejcdp.com. The journal allows free access (open access) to its contents. Articles with clinical relevance will be given preference for publication. The Journal publishes original research papers, review articles, rare and novel case reports, and clinical techniques. Manuscripts are invited from all specialties of dentistry i.e., conservative dentistry and endodontics, dentofacial orthopedics and orthodontics, oral medicine and radiology, oral pathology, oral surgery, orodental diseases, pediatric dentistry, implantology, periodontics, clinical aspects of public health dentistry, and prosthodontics.
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