PDF(Pubmed)
Abstract：
OBJECTIVE: This review will map the various methodological approaches used in graded dental ceramics and distinguish their material characteristics and properties. The aim is to identify gaps in the development and application of grading in dental ceramic systems.
BACKGROUND: The advantage of functionally graded materials is the absence of the weakest link, with no distinct boundaries, thereby eliminating the possibility of stress concentrations at the interfaces. Functionally graded materials are well established in nature, such as in human teeth, bone, and the bio-tissues of plants and animals. This concept has also been explored in dental ceramics to enhance fatigue resistance and strength.
METHODS: This review will include observational studies and interventional studies, such as in vitro and experimental studies, on functionally graded dental ceramic systems. Studies that use finite element analysis to evaluate stress distributions, and studies on the mechanical performance of graded dental ceramics, irrespective of the type of ceramic material, design, or thickness of graded layers, will be considered.
METHODS: The review will follow the JBI methodology for scoping reviews and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. MEDLINE (PubMed), Scopus, ProQuest Dissertations and Theses (EBSCOhost), Cochrane CENTRAL, and Google Scholar will be searched for English language studies. The search strategy will be based on MeSH terms and free-text specific terms, and will be adapted for each database. Two independent reviewers will screen titles and abstracts, and extract data from selected sources. The data extracted from the selected studies will be analyzed and presented in the form of tables and figures.
BACKGROUND: Open Science Framework: https://osf.io/ahsp7.
BACKGROUND: The advantage of functionally graded materials is the absence of the weakest link, with no distinct boundaries, thereby eliminating the possibility of stress concentrations at the interfaces. Functionally graded materials are well established in nature, such as in human teeth, bone, and the bio-tissues of plants and animals. This concept has also been explored in dental ceramics to enhance fatigue resistance and strength.
METHODS: This review will include observational studies and interventional studies, such as in vitro and experimental studies, on functionally graded dental ceramic systems. Studies that use finite element analysis to evaluate stress distributions, and studies on the mechanical performance of graded dental ceramics, irrespective of the type of ceramic material, design, or thickness of graded layers, will be considered.
METHODS: The review will follow the JBI methodology for scoping reviews and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. MEDLINE (PubMed), Scopus, ProQuest Dissertations and Theses (EBSCOhost), Cochrane CENTRAL, and Google Scholar will be searched for English language studies. The search strategy will be based on MeSH terms and free-text specific terms, and will be adapted for each database. Two independent reviewers will screen titles and abstracts, and extract data from selected sources. The data extracted from the selected studies will be analyzed and presented in the form of tables and figures.
BACKGROUND: Open Science Framework: https://osf.io/ahsp7.
摘要：
目的：这篇综述将绘制用于分级牙科陶瓷的各种方法学方法，并区分它们的材料特征和性能。目的是确定牙科陶瓷系统中分级的开发和应用方面的差距。
背景：功能梯度材料的优点是没有最薄弱的环节，没有明显的界限，从而消除了界面处应力集中的可能性。功能分级的材料在自然界中已经确立，比如人类的牙齿，骨头,以及植物和动物的生物组织。在牙科陶瓷中也探索了这一概念，以增强抗疲劳性和强度。
方法：本综述将包括观察性研究和介入性研究，如体外和实验研究，关于功能梯度牙科陶瓷系统。使用有限元分析评估应力分布的研究，以及对分级牙科陶瓷的力学性能的研究，无论陶瓷材料的类型，设计,或渐变层的厚度，将被考虑。
方法：审查将遵循用于范围审查的JBI方法和用于系统审查的首选报告项目和用于范围审查的Meta分析扩展。MEDLINE(PubMed),Scopus,ProQuest论文和论文（EBSCOhost），科克伦中部,谷歌学者将被搜索英语语言研究。搜索策略将基于MeSH术语和自由文本特定术语，并将适用于每个数据库。两名独立审稿人将筛选标题和摘要，并从选定的来源中提取数据。从选定的研究中提取的数据将以表格和图形的形式进行分析和呈现。
背景：开放科学框架：https://osf.io/ahsp7。
背景：功能梯度材料的优点是没有最薄弱的环节，没有明显的界限，从而消除了界面处应力集中的可能性。功能分级的材料在自然界中已经确立，比如人类的牙齿，骨头,以及植物和动物的生物组织。在牙科陶瓷中也探索了这一概念，以增强抗疲劳性和强度。
方法：本综述将包括观察性研究和介入性研究，如体外和实验研究，关于功能梯度牙科陶瓷系统。使用有限元分析评估应力分布的研究，以及对分级牙科陶瓷的力学性能的研究，无论陶瓷材料的类型，设计,或渐变层的厚度，将被考虑。
方法：审查将遵循用于范围审查的JBI方法和用于系统审查的首选报告项目和用于范围审查的Meta分析扩展。MEDLINE(PubMed),Scopus,ProQuest论文和论文（EBSCOhost），科克伦中部,谷歌学者将被搜索英语语言研究。搜索策略将基于MeSH术语和自由文本特定术语，并将适用于每个数据库。两名独立审稿人将筛选标题和摘要，并从选定的来源中提取数据。从选定的研究中提取的数据将以表格和图形的形式进行分析和呈现。
背景：开放科学框架：https://osf.io/ahsp7。
