一个随机对照临床试验在压力和块脱酸盐部分冠状:一个4年的召回
Edoardo Ferrari-Cagidiaco1, Giulia Verniani2, Andrew Keeling3
1Department of Oral Surgery, University of Siena, Siena, Italy.
American journal of dentistry
|May 5, 2024
概括
两种脱酸盐系统在牙冠4年后显示100%的存活率. 模拟和数字制造方法的临床性能和成功率都相当.
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
- 临床牙科 临床牙科
背景情况:
- 二氧化陶由于其有利的美学和机械性能,被广泛用于牙科修复.
- 评估不同脱酸盐系统的长期临床性能对于明智的材料选择至关重要.
- 评估模拟和数字制造工作流程为现代牙科假牙提供了全面的见解.
研究的目的:
- 为了比较两个脱酸盐系统的临床性能和4年生存率:初始LiSi压力和初始LiSi块.
- 通过修改的美国公共卫生服务 (USPHS) 标准来评估恢复.
- 评估模拟与数字制造对临床结果的影响.
主要方法:
- 60名受试者接受了由初始LiSi压力机 (模拟) 或初始LiSi块 (数字) 制造的部分粘合后部冠.
- 恢复在基线和4年随访时使用修改的USPHS标准和牙周评估来评估.
- 统计分析包括应急表和考克斯回归来比较群体并评估随时间变化 (P<0.05).
主要成果:
- 所有评估的参数都符合临床成功标准 (阿尔法或布拉沃),没有失败 (查理).
- 在任何评估点 (P>0.05) 上,两种二酸盐系统或制造方法之间没有观察到统计学上显著的差异.
- 在4年后,所有修复都实现了100%的存活率,无需更换或修复.
结论:
- 最初的LiSi压力和最初的LiSi块都显示出出色的临床性能和4年后100%的存活率.
- 模拟和数字制造技术为二氧化冠提供了相似的成功结果.
- 这项研究支持使用这些脱酸盐材料进行持久和成功的牙科修复.
相关概念视频
Blind Procedures
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Blinding
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.


