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Matched Pairs Design
An experimental design where each subject is paired up with another subject with similar characteristics, and one subject from each pair is assigned to the treatment group and the other to the control group.
Cavities
Holes or structural damage formed in teeth due to decay, often caused by bacteria, sugary diets, and poor dental hygiene.
Placebo
A substance with no therapeutic effect, often used as a control in testing new drugs.
Treatment
In a research context, an intervention or condition that participants in an experimental group are exposed to, to observe its effects.
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