Dental Restoration Failure Analysis

牙齿修复失败分析

基本信息

批准号：
8050653
负责人：
Gary Edward Schumacher
金额：
$ 21.37万
依托单位：
AMERICAN DENTAL ASSOCIATION FOUNDATION
依托单位国家：
美国
项目类别：
财政年份：
2007
资助国家：
美国
起止时间：
2007-05-01 至 2013-04-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8050653
关键词：
Achievement Acute Affect Alloys American Dental Association Area Biology Categories Ceramics Characteristics Clinical Collection Communities Composite Resins Correlation Studies Data Databases Dental Dental General Practice Dental Materials Dental Porcelain Dental Research Dental Restoration Failure Dental Schools Dentists Dentition Dependence Development Elderly Engineering Esthetics Evolution Failure Fracture Funding Goals Guidelines Hardness In Vitro Industry Information Dissemination Knowledge Laboratory Personnel Laboratory Technicians Libraries Literature Longevity Manuals Manufacturer Name Marketing Materials Testing Methodology Methods Modification Polymers Population Procedures Process Production Property Publications Publishing Recommendation Research Research Personnel Resources Role Scheme Science Series Shapes Specimen Stress Surface System Techniques Technology Transfer Testing Text Time Tooth structure United States National Institutes of Health Work base biomaterial compatibility clinical practice evaluation/testing expectation experience improved in vitro testing in vivo interest meetings new product development novel practice-based research network programs research study restoration restorative dentistry success symposium tool

项目摘要

DESCRIPTION (provided by applicant): The combination of technological advances in Dental materials and increased demands in quantity and quality by a burgeoning population of dentate elderly has resulted in the production of new Dental restoration systems at an unprecedented pace. Longevity studies can no longer keep up with market-driven demands. This has placed increased importance on testing techniques and failure analyses. The goal of this project is to meet the needs of Dental professionals by understanding Dental restoration failure modes, produce guidelines and recommendations for improving Dental restoration longevity and disseminate the relevant information. The goals will be achieved in a series of steps. First, relevant application-based property testing techniques will be established, rather than material-based. This will help solve some of the current problems in the Dental field, where many different materials are now so advanced they can be used for the same application, but are still tested differently. Second, restoration-shaped specimens of the tested materials will be made and broken to mimic the fracture surfaces of failed restorations in vivo. The ability to reproduce a fracture surface represents a thorough understanding of the stress configuration and fracture progression. Only very recently have fractographic studies and a small collection of failed restorations enabled such an endeavor. Next, this project will continue to build a library of failed restorations, utilizing the newly established PBRNs. By collecting a statistically significant number of fractures, correlations with published longevity studies would finally be possible. The last goal is effective technology transfer, as this research has immediate practical value and scientific merit. Besides presentations and publications, an educational package will be made available for Dental schools, and information will be made available to practicing professions through the PBRN program and the resources of the ADA. This project will benefit the public by improving the quality and durability of Dental restorations. In order to avoid restoration failure, the role of properties, testing and fracture progression must be understood. This is of obvious value to researchers, but this knowledge and data will also be accessible for practicing Dentists, manufacturers and laboratory technicians to be able to work together to make informed choices regarding restorations within their own areas of expertise.

描述（由申请人提供）：牙科材料的技术进步和齿状老年人口的数量和质量不断增长的需求相结合，导致新的牙科修复系统以前所未有的速度生产。长寿研究已无法跟上市场驱动的需求。这使得测试技术和故障分析变得越来越重要。该项目的目标是通过了解牙科修复失败模式来满足牙科专业人员的需求，制定提高牙科修复寿命的指南和建议并传播相关信息。这些目标将通过一系列步骤来实现。首先，将建立相关的基于应用的性能测试技术，而不是基于材料的测试技术。这将有助于解决牙科领域当前的一些问题，许多不同的材料现在非常先进，可以用于相同的应用，但仍然进行不同的测试。其次，将制作并破碎测试材料的修复体形状样本，以模拟体内失败修复体的断裂表面。再现断裂表面的能力代表了对应力配置和断裂进展的透彻理解。直到最近，断口研究和一小部分失败的修复体才使这一努力成为可能。接下来，该项目将利用新建立的 PBRN 继续建立失败修复体库。通过收集统计上显着数量的骨折，最终可以与已发表的长寿研究建立相关性。最后一个目标是有效的技术转让，因为这项研究具有直接的实用价值和科学价值。除了演示文稿和出版物之外，还将向牙科学校提供教育包，并通过 PBRN 计划和 ADA 资源向执业专业人士提供信息。该项目将通过提高牙科修复体的质量和耐用性来造福公众。为了避免修复失败，必须了解性能、测试和骨折进展的作用。这对于研究人员来说具有明显的价值，但执业牙医、制造商和实验室技术人员也可以获取这些知识和数据，以便能够共同努力，在各自的专业领域内做出有关修复的明智选择。