Investigating correlations between translucency and wear resistance in lithium silicate-based dental glass-ceramics

IF 2.7 4区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Boletin de la Sociedad Espanola de Ceramica y Vidrio Pub Date : 2024-01-01 DOI:10.1016/j.bsecv.2023.02.004

Fernando Rodríguez-Rojas, Óscar Borrero-López, Estíbaliz Sánchez-González, José D. Ríos, Fernando Guiberteau

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Abstract

Lithium silicate-based glass-ceramics are widely employed dental materials, showing superior aesthetics (determined by translucency) but poorer wear resistance under severe contact conditions than alternative, artificial crown materials. This work investigates possible correlations between the level of translucency and resistance to wear (in vitro) under sliding contact against hard zirconia antagonists in commercial lithium disilicate and zirconia-reinforced lithium silicate dental glass-ceramics. Wear rates are quantified, and mechanisms responsible for material removal are analyzed. Results are discussed in terms of the materials’ microstructure and mechanical properties within the framework of a fracture mechanics model. Finally, implications for materials selection in dentistry are briefly discussed.

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硅酸锂基牙科材料透光性与耐磨性的相关性研究

硅酸锂基玻璃陶瓷是一种广泛使用的牙科材料，与其他人工牙冠材料相比，硅酸锂基玻璃陶瓷显示出卓越的美感（由半透明度决定），但在严重接触条件下的耐磨性较差。这项研究调查了商用二硅酸锂和氧化锆增强型硅酸锂牙科玻璃陶瓷在与硬氧化锆拮抗剂滑动接触时的半透明程度和耐磨性（体外）之间可能存在的相关性。对磨损率进行了量化，并分析了材料去除的机制。在断裂力学模型的框架内，根据材料的微观结构和机械性能对结果进行了讨论。最后，简要讨论了牙科材料选择的意义。

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来源期刊

Boletin de la Sociedad Espanola de Ceramica y Vidrio 工程技术-材料科学：硅酸盐

CiteScore

5.50

自引率

2.90%

发文量

审稿时长

103 days

期刊介绍： The Journal of the Spanish Ceramic and Glass Society publishes scientific articles and communications describing original research and reviews relating to ceramic materials and glasses. The main interests are on novel generic science and technology establishing the relationships between synthesis, processing microstructure and properties of materials. Papers may deal with ceramics and glasses included in any of the conventional categories: structural, functional, traditional, composites and cultural heritage. The main objective of the Journal of the Spanish Ceramic and Glass Society is to sustain a high standard research quality by means of appropriate reviewing procedures.