Effects of Surface Textures Created Using Additive Manufacturing on Shear Bond Strength Between Resin and Zirconia.

The journal of adhesive dentistry Pub Date : 2024-03-11 DOI:10.3290/j.jad.b5053367

Kang Dai, Jiang Wu, Hai Yu, Zhe Zhao, Bo Gao

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Abstract

Purpose: This investigation aimed to assess the impact of additive manufacturing-generated surface textures on zirconia bond strength.

Materials and methods: Zirconia samples (n = 144) fabricated using digital light-processing (DLP) technology were categorized into 6 groups according to the type of surface conditioning (group NN: no designs, no air abrasion; group NY: no designs, with air abrasion; group GN: groove designs, no air abrasion; group GY: groove designs with air abrasion; group HN: hexagon grid, no air abrasion; group HY: hexagon grid, with air abrasion). Composite resin cylinders were cemented to the treated zirconia surfaces with dual-curing, self-adhesive resin cement (Clearfil SA Luting). The shear bond strength (SBS) was tested after water storage for 3 days or 3 days with an additional 10,000 thermocycles.

Results: The zirconia samples fabricated using DLP technology have high accuracy. The SBS of the NY, GY, and HY groups did not significantly differ after 3 days, and neither did the SBS of the NN, GN, and HN groups. The NN, NY, and HY groups exhibited reduced SBS compared to their initial values following artificial aging, while the SBS of the remaining three groups were not diminished. The GY group obtained the highest SBS value after aging.

Conclusion: Printing grooves with air abrasion can improve the bond strength.

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使用快速成型技术制造的表面纹理对树脂和氧化锆之间剪切粘接强度的影响

目的：本研究旨在评估添加剂制造产生的表面纹理对氧化锆结合强度的影响：使用数字光处理（DLP）技术制造的氧化锆样品（n = 144）根据表面调节类型分为 6 组（NN 组：无设计，无空气磨蚀；NY 组：无设计，有空气磨蚀；GN 组：凹槽设计，无空气磨蚀；GY 组：凹槽设计，有空气磨蚀；HN 组：六边形网格，无空气磨蚀；HY 组：六边形网格，有空气磨蚀）。使用双固化自粘树脂粘合剂（Clearfil SA Luting）将复合树脂圆柱体粘合到处理过的氧化锆表面。在水中储存 3 天或 3 天后再进行 10,000 次热循环，测试剪切粘接强度（SBS）：结果：使用 DLP 技术制作的氧化锆样品精度很高。NY、GY 和 HY 组的 SBS 在 3 天后无显著差异，NN、GN 和 HN 组的 SBS 也无显著差异。NN、NY 和 HY 组的 SBS 与人工老化后的初始值相比有所降低，而其余三组的 SBS 没有降低。GY 组在老化后获得了最高的 SBS 值：结论：通过气磨印制凹槽可以提高粘接强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The journal of adhesive dentistry

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