Kumar Sarthak, Karina Singh, Kumari Bhavya, Sivaranjani Gali
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引用次数: 0
摘要
有研究报告称，氧化锆牙冠与粘接剂和制备好的牙齿之间存在脱粘问题。本研究旨在探索牙科上釉系统的应用，以增强氧化锆牙科陶瓷与胶结树脂的粘结。研究使用了商用釉粉和液体（Vita Akzent）以及实验用云母基釉粉。对釉粉进行了 X 射线衍射分析（XRD），对釉液进行了傅立叶变换红外光谱分析（FTIR）。喷砂烧结牙科氧化锆（Katana，Noritake）为对照样品。氧化锆釉面样品涂有商用釉粉和实验釉粉，并用 5% 的氢氟酸进一步蚀刻。评估了喷砂和上釉氧化锆样品与树脂复合材料的剪切粘结强度。商用釉粉和实验釉粉的 XRD 显示了一个宽峰，证实了玻璃的无定形性质，釉液的傅立叶变换红外分析显示了醇基的对称伸展（CH2-CH3），表明是异丁烷和乙醇的混合物。与喷砂氧化锆相比，上釉和蚀刻氧化锆与树脂水泥的剪切粘结强度明显更高。这项研究证实了牙科釉粉的玻璃性质以及商用釉液中乙醇基混合物的存在。上釉系统在增强不可蚀刻氧化锆陶瓷与树脂粘接剂和牙齿基质的粘接方面具有潜力可挖。
Glazing as a bonding system for zirconia dental ceramics.
Studies have reported challenges of debonding of dental zirconia crowns to from luting cement and prepared teeth. The aim of the study was to explore the application of dental glazing systems for enhancing the bonding of zirconia dental ceramics to luting resin cement. Commercial glaze powder and liquid (Vita Akzent) and experimental mica-based glaze powders were used for the study. X-ray diffraction analysis of the glaze powders (XRD) and Fourier Transform InfraRed Spectroscopy (FTIR) was done on the glaze liquid. Sandblasted sintered dental zirconia (Katana, Noritake) were the control samples. Glazed zirconia samples were coated with commercial glaze and experimental glaze powders which were further etched with 5% hydrofluoric acid. Shear bond strengths of sandblasted and glazed zirconia samples to resin composites were evaluated. XRD of commercial and experimental glaze powders revealed a broad peak confirming the amorphous nature of glass and FTIR analysis of the glaze liquid revealed symmetrical stretching (CH2-CH3) of the alcohol group indicating a mixture of iso-butane and ethanol. Glazed and etched zirconia showed significantly higher shear bond strength to resin cement compared to sand-blasted zirconia. The study confirms the glassy nature of dental glaze powders and the presence of ethanol-based mixtures in the commercial glaze liquid. Glazing systems have the potential to be explored for enhancing the bonding of non-etchable zirconia ceramics to resin cement and tooth substrates.
期刊介绍：
Museum Anthropology seeks to be a leading voice for scholarly research on the collection, interpretation, and representation of the material world. Through critical articles, provocative commentaries, and thoughtful reviews, this peer-reviewed journal aspires to cultivate vibrant dialogues that reflect the global and transdisciplinary work of museums. Situated at the intersection of practice and theory, Museum Anthropology advances our knowledge of the ways in which material objects are intertwined with living histories of cultural display, economics, socio-politics, law, memory, ethics, colonialism, conservation, and public education.
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