使用传统技术和两种数字技术制造的定制后部和核心的内部和边缘适合的比较评估:一个体外研究:一个体外研究
Vidhi Himanshu Sheth1, Nikita Gharat, Vishrut Mohan Bhatnagar
1Department of Prosthodontics, Crown and Bridge, TPCT's Terna Dental College, Navi Mumbai, Maharashtra, India.
Journal of Indian Prosthodontic Society
|January 24, 2024
概括
与传统方法相比,定制柱子和核心的数字制造显示出更好的内部适应性. 具体来说,扫描印记产生了最好的边缘和内部适合-柱.
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
- 数字牙科数字牙科
背景情况:
- 定制后台和核心修复对于恢复内牙治疗的牙至关重要.
- 准确的边缘和内部适合对于这些修复的长寿和成功至关重要.
- 与传统方法相比,评估数字制造技术对于改善临床结果至关重要.
研究的目的:
- 为了比较使用传统技术与两个数字技术制造的合金定制柱子和核心的边缘和内部适应.
- 为了确定哪种制造方法为牙科修复提供了更好的适合性.
主要方法:
- 进行了一项体外研究,比较了三个制造组:传统的,用增材制造对树脂图案的数字扫描,以及用CAD/CAM对印记的数字扫描.
- 每组制造了五套定制的柱子和核心套件.
- 用微型计算机断层扫描 (micro-CT) 评估边缘和内部适应.
主要成果:
- 第三组 (数码扫描印和CAD/CAM) 的边际差距较小 (82.5 ± 14.36μm).
- 第三组在宫,中部,顶部和整体区域的内部差距也最少.
- 虽然边际差距在组之间没有显著差异,但内部差距显示出统计学上显著的差异 (P = 0.02).
结论:
- 数字制造,特别是扫描印记,其次是CAD/CAM,导致-定制柱子和核心的内部适应性优越.
- 这种数字方法在实现更好的适应和潜在地提高后期和核心修复的临床成功方面可能带来优势.
相关概念视频
Experimental Designs
11.4K
An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are three widely used types of experimental design - pre-experimental design, true experimental design, and quasi-experimental design. In pre-experimental design, the researcher compares the data before and after some interventions or treatments. The true-experimental design has more than one purposefully created group, a commonly measured...
11.4K
Multiple Comparison Tests
3.9K
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
3.9K
Goodness-of-Fit Test
3.3K
The goodness-of-fit test is a type of hypothesis test which determines whether the data "fits" a particular distribution. For example, one may suspect that some anonymous data may fit a binomial distribution. A chi-square test (meaning the distribution for the hypothesis test is chi-square) can be used to determine if there is a fit. The null and alternative hypotheses may be written in sentences or stated as equations or inequalities. The test statistic for a goodness-of-fit test is given as...
3.3K
Qualitative Analysis
261
Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
There are two main approaches to qualitative analysis:...
261
Methods of Documentation IV: Focus Charting
1.0K
Focus Charting, also known as the focus charting system or "focus documentation," is a systematic documentation approach used in healthcare to organize patient information in medical records.
It typically involves three columns for recording information:
It typically involves three columns for recording information:
1.0K
Modeling and Similitude
267
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
267


