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Updated: Jun 16, 2026

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
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在手动和机动驱动的方法之间的疼痛体验的差异:一个单一中心随机对照试验

Sanjana Sudarshan1, Martyn Sherriff2, Niamh O'Rourke3

  • 1Department of Orthodontics, Royal Surrey County Hospital NHS Foundation Trust, Surrey GU2 7XX, United Kingdom.

European journal of orthodontics
|November 13, 2025
PubMed
概括

这项研究发现手动和机动驱动的近接间膜缩小 (IER) 技术之间的患者报告的疼痛没有显著差异. 临床医生可以根据效率和偏好选择IER方法,而不是根据疼痛预期.

关键词:
牙疼痛 牙疼痛 牙疼痛矯正牙科 矯正牙科是指矯正牙科的專業.患者报告的结果衡量患者报告的结果.随机对照试验作为主题牙准备剂 牙准备剂 牙准备剂视觉模拟尺度是一个视觉模拟尺度.

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Randomized Experiments01:13

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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Group Design02:01

Group Design

The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
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Controls in Experiments

When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
Multiple Comparison Tests01:13

Multiple Comparison Tests

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.
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Blinding01:11

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.