Related Experiment Videos
Should I eXtract Every Six dental trial (SIXES): study protocol for a randomized controlled trial.
Nicola Innes1, Felicity Borrie, David Bearn
1Dundee Dental Hospital and School, Park Place, University of Dundee, DD1 4HN, Dundee, UK. n.p.innes@dundee.ac.uk
Trials
|February 28, 2013
Summary
This study compares extracting upper molars with lower molar extractions in children. It aims to reduce unnecessary dental procedures and improve long-term oral health outcomes.
Area of Science:
- Pediatric Dentistry
- Orthodontics
- Oral Surgery
Background:
- Extraction of lower first permanent molars is common in children.
- Clinical guidelines recommend 'compensating extraction' of upper first molars, but practice varies.
- This uncertainty can lead to unnecessary or insufficient extractions, impacting long-term oral health and treatment complexity.
Purpose of the Study:
- To compare the clinical effectiveness and quality of life between conventional treatment (compensating upper molar extraction) and alternative intervention (no upper molar extraction) in children.
- To provide evidence-based guidance for dentists and orthodontists regarding the necessity of compensating extractions.
- To potentially reduce the number of tooth extractions performed in pediatric dental care.
Main Methods:
- A multicenter, two-arm parallel group randomized clinical trial (SIXES trial).
- Recruitment of 400 children aged 7-11 years requiring lower first permanent molar extraction.
- Primary outcome: degree of lower second permanent molar tipping; secondary outcomes: anesthetic use, spacing, orthodontic needs, quality of life, and over-eruption.
Main Results:
- The study is ongoing and results are pending.
- The primary outcome measure is the degree of tipping of the lower second permanent molar.
- Secondary outcome measures include anesthetic type, residual spacing, orthodontic treatment needs, quality of life, and over-eruption.
Conclusions:
- The SIXES trial will investigate the necessity of compensating upper molar extraction after lower molar loss.
- Current decision-making relies on expert opinion, highlighting the need for robust evidence.
- The trial aims to inform clinical practice, potentially leading to fewer unnecessary tooth extractions.
Related Concept Videos
Clinical Trials
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs
Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...
Data Collection by Experiments
Data collection is a systematic method of obtaining, observing, measuring, and analyzing accurate information. An experimental study is a standard method of data collection that involves the manipulation of the samples by applying some form of treatment prior to data collection. It refers to manipulating one variable to determine its changes on another variable. The sample subjected to treatment is known as “experimental units.”
An example of the experimental method is a public clinical trial...
An example of the experimental method is a public clinical trial...
Crossover Experiments
Crossover experiments, also called the repeated-measurements design, is a study design in which all experimental units are exposed to all treatments in different periods. Crossover experiments are generally used in psychology, the pharmaceutical industry, agriculture, and medicine.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
Clinical Trials: Overview
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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.