不同整理/抛光工艺及釉料用量对水热老化后超透明氧化锆抗弯强度的影响

IF 3.3 2区医学 Q2 ENGINEERING, BIOMEDICAL

Journal of the Mechanical Behavior of Biomedical Materials Pub Date : 2025-02-03 DOI:10.1016/j.jmbbm.2025.106924

Sarah Emille Gomes da Silva , Bianca Cristina Dantas da Silva , Anne Heloyse Teixeira Crispim , Amanda Maria de Oliveira Dal Piva , Cornelis Johannes Kleverlaan , Rodrigo Othávio de Assunção e Souza

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引用次数: 0

摘要

目的评价不同抛光工艺和釉料对超透明氧化锆（UZ）表面粗糙度、抗弯强度和显微组织的影响。方法：对240根UZ棒材（8 × 2 × 1 mm）进行烧结，并根据以下因素（n = 15）进行处理：精加工/抛光程序类型(Control - Ctrl；超细金刚石毛刺- FG；中砂砾金刚石毛刺- MG；Stone Bur—石头；橡胶-摩擦；FG + Rub；MG + Rub；Stone + Rub)和“Glaze”（Without和With - Gl）。试件经水热降解（24 h, 127°C, 1.7 bar），进行粗糙度分析和3点微弯曲强度（FS）测试。扫描电镜（SEM）、x射线衍射（XDR）和威布尔分析。数据分析采用双因素方差分析和Tukey检验（5%）。结果“精加工/抛光”及其与“釉”的交互作用具有统计学意义(P <；0.0001)，与单独的“Glaze”不同（P = 0.8827）。Rub （602.11 MPaA）、Stone + Rub （555.50 MPaAB）和Ctrl （621.72 MPaA）表现出较好的FS，而FG_GL表现出最低的FS。Stone + Rub的Weibull模量最高，为13.15a。Ctrl_Gl（0.18±0.02F μm）和Ctrl + Rub_Gl（0.29±0.07F μm）的粗糙度最低。釉料（0.48B）降低了未处理组（1.56A）的表面粗糙度，MG（2.60±0.69A μm）和FG（2.50±0.7A μm）的表面粗糙度更大。结论橡胶抛光剂是理想的小幅度调整UZ，而石后橡胶是有效的更大的磨损，而不影响机械强度。除了FG组外，与未上釉组相比，釉的应用没有降低机械强度，导致表面粗糙度降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of different finishing/polishing techniques and glaze application on the flexural strength of ultratranslucent zirconia after hydrothermal aging

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Effect of different finishing/polishing techniques and glaze application on the flexural strength of ultratranslucent zirconia after hydrothermal aging

Purpose

To evaluate the effect of different finishing/polishing procedures and glaze on the surface roughness, flexure strength, and microstructure of an ultratranslucent zirconia (UZ) submitted aging.

Methodology

Two hundred and forty (240) UZ bars were sintered (8 × 2 × 1 mm) and treated according to the factors (n = 15): Type of finishing/polishing procedure (Control - Ctrl; Ultra-fine Diamond Burr - FG; Medium grit diamond burr- MG; Stone Bur - Stone; Rubber - Rub; FG + Rub; MG + Rub; Stone + Rub), and “Glaze” (Without and With - Gl). The bars were hydrothermally degraded (24 h, 127 °C, 1.7 bar), submitted to roughness analysis and 3-point mini flexural strength (FS) test. Scanning Electron Microscopy (SEM), X-ray Diffraction (XDR), and Weibull analysis were performed. Data were analyzed by 2-way ANOVA and Tukey test (5%).

Results

Finishing/Polishing’ and its interaction with ‘Glaze’ were statistically significant (P < 0.0001) for FS, unlike ‘Glaze’ alone (P = 0.8827). Rub (602.11 MPa^A), Stone + Rub (555.50 MPa^AB), and Ctrl (621.72 MPa^A) showed superior FS, while FG_GL showed the lowest FS. Stone + Rub showed the highest Weibull modulus (13.15^a). Ctrl_Gl (0.18 ± 0.02^F μm) and Ctrl + Rub_Gl (0.29 ± 0.07^F μm) showed the lowest roughness. Glaze (0.48^B) reduced the roughness of the groups that did not receive it (1.56^A), with MG (2.60 ± 0.69^A μm) and FG (2.50 ± 0.7^A μm) exhibiting rougher surfaces.

Conclusions

Rubber polishers are ideal for minor adjustments to UZ while Stone followed by rubber is effective for greater abrasion without compromising mechanical strength. The application of glaze did not reduce mechanical strength and resulted in lower surface roughness compared to the non-glazed groups, with the exception of the FG groups.

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来源期刊

Journal of the Mechanical Behavior of Biomedical Materials 工程技术-材料科学：生物材料

CiteScore

7.20

自引率

7.70%

发文量

505

审稿时长

46 days

期刊介绍： The Journal of the Mechanical Behavior of Biomedical Materials is concerned with the mechanical deformation, damage and failure under applied forces, of biological material (at the tissue, cellular and molecular levels) and of biomaterials, i.e. those materials which are designed to mimic or replace biological materials. The primary focus of the journal is the synthesis of materials science, biology, and medical and dental science. Reports of fundamental scientific investigations are welcome, as are articles concerned with the practical application of materials in medical devices. Both experimental and theoretical work is of interest; theoretical papers will normally include comparison of predictions with experimental data, though we recognize that this may not always be appropriate. The journal also publishes technical notes concerned with emerging experimental or theoretical techniques, letters to the editor and, by invitation, review articles and papers describing existing techniques for the benefit of an interdisciplinary readership.