后期设计和水泥类型在纤维后期适应和保留中的作用
Helena Cristina de Assis1, Tamara Justiniano Cronenbold1, Heitor Silva Prado1
1Department of Restorative Dentistry, The School of Dentistry of Ribeirão Preto, University of São Paulo (USP), São Paulo, Ribeirão Preto, Brazil.
BMC oral health
|January 21, 2026
概括
带有RelyXTM U200水泥的Reforpost®柱子在内牙治疗的牙中提供了卓越的保留和更少的空隙. 这种组合增强了顶部适应性,与其他材料相比,降低了脱后的风险.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 牙周内科医院 牙周内科医院 牙周内科医院
背景情况:
- 顶端空隙损害了水泥的均性,增加了搬迁后的风险.
- 玻璃纤维后台选择和化剂影响水泥完整性.
- 了解空隙形成对于后保留至关重要.
研究的目的:
- 为了评估拉出力,树脂水泥厚度和顶峰空洞/空隙.
- 为了比较两个玻璃纤维柱 (Exacto,Reforpost®) 与两个树脂水泥 (RelyXTM ARC,RelyXTM U200).
主要方法:
- 微CT分析水泥厚度和空隙.
- 拉出测试和故障模式分析.
- 双向ANOVA和千平方测试用于统计分析.
主要成果:
- Reforpost®的拉力更高,水泥比Exacto更薄.
- 与Reforpost®配合的RelyXTM U200产生的空隙明显少于Exacto的空隙.
- RelyXTM U200显示出改善的顶端适应性与最小的空隙.
结论:
- Reforpost®和RelyXTM U200的组合产生了卓越的顶部适应性,更少的空隙和更高的拉出强度.
- 平行侧面的有牙的柱子和自粘性水泥增强了保留.
- 优化柱子和水泥的选择可以降低治疗牙的脱风险.
相关概念视频
Types of Cement I
362
Portland cement comes in several types, each with distinct properties and applications based on their chemical composition and hydration characteristics:
Type I (Ordinary Portland Cement) is widely used for general construction where special properties are not required. It has moderate sulfate resistance and heat of hydration.
Type II (Modified Cement) offers moderate resistance to sulfate attack and a lower rate of heat development compared to Type I. It is suitable for structures in...
Type I (Ordinary Portland Cement) is widely used for general construction where special properties are not required. It has moderate sulfate resistance and heat of hydration.
Type II (Modified Cement) offers moderate resistance to sulfate attack and a lower rate of heat development compared to Type I. It is suitable for structures in...
362
Types of Cement II
410
Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate...
410
Post-traumatic Stress Disorder
499
Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
499
Post-translational Translocation of Proteins to the RER
7.6K
A sizable fraction of proteins destined for ER are first synthesized in the cell cytosol and then transported across the ER membrane–a process called post-translational translocation. Similar to cotranslationally translocated proteins, these proteins also use the Sec translocon complex to enter the ER lumen.
Targeting proteins to the ER
Hsp40 and Hsp70 chaperone molecules bind the translated proteins in the cytosol to prevent their folding. The chaperone binding helps to keep the signal...
Targeting proteins to the ER
Hsp40 and Hsp70 chaperone molecules bind the translated proteins in the cytosol to prevent their folding. The chaperone binding helps to keep the signal...
7.6K
Types of Skeletal Muscle Fibers
4.1K
Skeletal muscles comprise various fibers, each with distinct characteristics and roles in movement and stability. They are mainly categorized into three types — fast-twitch, slow-twitch, and intermediate.
Fast-twitch fibers
Fast-twitch fibers, or Type II fibers, are designed for quick, powerful bursts of speed and strength. They reach peak tension within approximately 0.01 seconds following stimulation. Characterized by a large diameter and densely packed myofibrils, these fibers contain...
Fast-twitch fibers
Fast-twitch fibers, or Type II fibers, are designed for quick, powerful bursts of speed and strength. They reach peak tension within approximately 0.01 seconds following stimulation. Characterized by a large diameter and densely packed myofibrils, these fibers contain...
4.1K
Handwashing III: During the Procedure and Post-Procedure Steps
2.2K
To wash hands properly, follow these steps:
2.2K

![Autoradiographic Measurements of [14C]-Iodoantipyrine in Rat Brain Following Central Post-Stroke Pain](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F53947.jpg&w=3840&q=50)
