Long-Term Durability of the Dentin-Resin Interface

牙本质-树脂界面的长期耐久性

• 批准号: 17592004
• 负责人: MASASHI Miyazaki
• 金额: $ 2.28万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17592004/
• 关键词: Dentin; Resin; Bonding; Interface; Durability; Demineralization; Ultrasound

The evaluation of bonding durability is important, as the bond between the restorative material and the tooth substrate has a significant impact on the clinical success of tooth-colored restorations. Although the most reliable conclusions about the performance of dental adhesive systems in the oral environment are derived from long-term clinical trials, the long-term storage of a bonded specimen in water or subjecting it to thermal cycling can give some insight into the temperature-dependent degradation of the material. Knowledge about the mechanical properties of tooth substrate and restorative materials could help with understanding and improving adhesive systems. The question has been arisen whether the mechanical properties of the components of resin-dentin bonding interface might be adversely affected by the thermal stress after the restoration. Since the mechanical properties of each resin-dentin bond component are expected to play important roles in bonding properties, the bondi … More ng durability might depend on the stability of the components. The purpose of this study was to determine the elastic modulus of the components at a resin-dentin interface. The longitudinal and shear wave sound velocities and elastic modulus were determined using ultrasonic equipment composed of a pulserreceiver, transducers and an oscilloscope. The round-trip transit time through an area of known thickness was measured with both longitudinal and shear wave transducers as the differential time between the echoes. The dentin bonding system aims to obtain a strong and durable bond with no microleakage. Many systems have been developed and new approaches ensure the creation of stable bonds at a rapid rate. The primary bonding mechanism of the current adhesive system is believed to form at the resin-dentin interdiffusion zone after acid-etching of the dentin. This interface is comprised of several layers of materials with differing mechanical properties that together determine the final bond strength of the adhesive system. Less

粘结耐久性的评价是非常重要的，因为修复材料与牙齿基质之间的粘结对牙色修复体的临床成功有着重要的影响。虽然有关牙科粘接系统在口腔环境中的性能的最可靠结论来自长期的临床试验，但粘接的标本在水中的长期储存或对其进行热循环可以让我们深入了解材料的温度依赖性降解。了解牙齿基材和修复体材料的机械性能有助于理解和改进粘接系统。树脂-牙本质粘结界面组件的力学性能是否会受到修复后的热应力的影响。由于每个树脂-牙本质粘结组件的机械性能预计将在粘结性能中发挥重要作用，Bondi…更多的NG耐用性可能取决于组件的稳定性。本研究的目的是确定树脂-牙本质界面处组件的弹性模数。利用由脉冲接收器、换能器和示波器组成的超声波装置测量纵波和横波的声速和弹性模数。用纵波换能器和横波换能器测量已知厚度区域的往返通过时间，作为回波之间的差分时间。牙本质粘结系统的目标是获得坚固耐用的粘结，没有微渗漏。已经开发了许多系统和新的方法，确保以快速的速度创建稳定的债券。目前粘接系统的主要粘结机制被认为是在牙本质酸蚀后树脂-牙本质互扩散区形成的。该界面由具有不同机械性能的几层材料组成，这些材料共同决定了粘接系统的最终粘合强度。较少

项目成果

Comparison of depth of dentin etching and resin infiltration with sing le-step adhesive svstems

单步粘合系统牙本质酸蚀和树脂渗透深度的比较

• 发表时间: 2005
• 期刊: Journal of Dentistry 33
• 作者: 陸田明智;千葉康史;坪田圭司;渡邊珠代;山本 明;安藤 進;宮崎真至;松崎辰男;Sato H;Yoshida T;Sato M
• 通讯作者: Sato M

Influence of acidic erosion on dentin bond strength of single-step self-etch system

酸蚀对单步自酸蚀系统牙本质结合强度的影响

• 发表时间: 2007
• 作者: Amano S;Yoshida T;Inage H;Takamizawa T;Rikuta A;Ando S;Kuroda T;Miyazaki M;Tsubota K;Rikuta A
• 通讯作者: Rikuta A

Effect of CPP-ACP paste on mechanical properties of bovine enamel as determined by an ultrasonic device

• DOI: 10.1016/j.jdent.2005.06.005
• 发表时间: 2006-03-01
• 期刊: JOURNAL OF DENTISTRY
• 影响因子: 4.4
• 作者: Yamaguchi, K;Miyazaki, M;Moore, BK
• 通讯作者: Moore, BK

照射器の光強度がシングルステップシステムの象牙質接着性に及ぼす影響について

照射器光强对单步系统牙本质粘附的影响

• 发表时间: 2006
• 期刊: 接着歯学 24
• 作者: Uekusa;S;稲毛寛彦;千葉康史;Asaka Y;Watanabe T;Yamaguchi K;Chiba Y;Yamammoto A;Yamaguchi K;Asaka Y;Uekusa S;Amano S;Asaka Y;Chiba Y;黒川 弘康;坪田 圭司
• 通讯作者: 坪田 圭司

シングルステップシステムの人口脱灰象牙質への接着性

单步系统对人工脱矿牙本质的粘附

• 发表时间: 2007
• 作者: Rikuta;A;Rikuta A;坪田 圭司;山口 佳奈子;陸田 明智
• 通讯作者: 陸田 明智