相关实验视频

Updated: Jun 23, 2025

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

在修复后使用不同基于酸盐的水泥和填充材料重新演变穿孔内部吸收腔的牙的强化:一个实验室研究研究

Krishna Popat¹, Manu Bansal², Anuj Bhardwaj³

¹Department of Conservative Dentistry and Endodontics, Modern Dental College and Research Centre, Indore, Madhya Pradesh, India.

Journal of pharmacy & bioallied sciences

|June 17, 2024

概括

这项研究评估了使用酸基水泥 (CSCs) 修复的内部再吸收腔的牙的骨折阻力. 与其他CSC和gutta-percha回填相比,NeoMTA Plus表现出优越的骨折抵抗力.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
牙科材料科学牙科材料科学
生物材料工程生物材料工程

背景情况:

内部再吸收腔削弱了牙结构,损害了骨折抵抗力.
基于酸的水泥 (CSC) 用于修复这些缺陷.
评估使用不同CSC修复的牙的骨折抵抗对于临床成功至关重要.

研究的目的:

评估和比较人类牙的断裂阻力 (FR) 与模拟的内部再吸收腔.
评估不同基于酸盐的水泥 (CSCs) Endocem MTA,Biodentine和NeoMTA Plus在修复这些空洞中的有效性.
为了比较CSC与传统的gutta-percha/sealer用于冠状回填的性能.

主要方法:

准备了96个人类下前,并创建了标准化的内部再吸收腔.
牙被分成组,用Endocem MTA,Biodentine或NeoMTA Plus填充牙腔,然后用相同的CSC或gutta-percha/sealer进行冠状元填充.
使用通用测试机测试骨折阻力,使用变量和邦费罗尼测试分析数据.

主要成果:

当NeoMTA Plus用于腔腔修复和冠状回填 (第5组) 时,它表现出最高的骨折阻力 (596.58 N).
与使用gutta-percha/sealer相比,用CSC填充通常会导致更高的骨折抵抗力.
带有gutta-percha/sealer (4组) 的生物牙显示出最低的断裂阻力 (187.50N).

结论:

与Endocem MTA和Biodentine相比,NeoMTA Plus在修复内部再吸收腔方面表现出优越的骨折抵抗力.
使用CSC用于冠状回填是提高骨折抵抗力的更有效的策略,而不是使用gutta-percha/sealer.
选择的CSC和填充材料显著影响内牙治疗牙的机械完整性与内部再吸收.

关键词:

填充后的材料填充后的材料基于酸的水泥是基于酸的水泥断裂阻力断裂阻力断裂阻力穿孔的内部根吸收再吸收.

更多相关视频

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Published on: July 21, 2014

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

Published on: July 10, 2014

相关概念视频

Masonry Cavity Walls

Masonry Cavity Walls

Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction...

Porosity in Cement Paste

Porosity in Cement Paste

The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...

Reinforced Brick Masonry

Reinforced Brick Masonry

Reinforced brick masonry is an advanced construction technique that enhances the structural integrity of brick walls by incorporating steel reinforcements. These reinforcements are either placed within the hollow cores of bricks or sandwiched between two layers of masonry, known as wythes, and are then secured in place with grout. Grout is a fluid mixture composed of Portland cement, aggregate, and water, providing the necessary bonding agent for the steel and brick.
To fortify brick walls...