PERCEPTION
Clinical trials for PERCEPTION explained in plain language.
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Tooth bumps make or break your smile, study finds
Knowledge-focused CompletedThis study looked at how tiny bumps on the edges of front teeth (called mamelons) affect how attractive a smile looks. Researchers showed 135 people—dentists, specialists, and regular folks—digitally altered photos of smiles with different mamelon sizes and shades. Participants r…
Matched conditions: PERCEPTION
Sponsor: Marmara University • Aim: Knowledge-focused
Last updated May 15, 2026 11:56 UTC
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Disaster course boosts student resilience, study finds
Knowledge-focused CompletedThis study tested a 15-week disaster education program for 140 university students. The program included lectures, case studies, simulations, and expert talks. Researchers measured changes in students' disaster risk perception, attitudes, and psychological resilience. The goal wa…
Matched conditions: PERCEPTION
Phase: NA • Sponsor: Necmettin Erbakan University • Aim: Knowledge-focused
Last updated May 15, 2026 11:56 UTC
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Dental implant gum disease: what patients think and feel
Knowledge-focused CompletedThis study looked at how people with gum disease around dental implants perceive their condition and how it affects their daily life and well-being. Researchers recruited 148 adults with at least one dental implant and signs of gum inflammation. Participants answered questionnair…
Matched conditions: PERCEPTION
Sponsor: University of Siena • Aim: Knowledge-focused
Last updated May 14, 2026 12:02 UTC
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Parkinson's perception study seeks to uncover hidden links
Knowledge-focused CompletedThis study looked at how people with Parkinson's disease perceive the world around them, including vision and unusual experiences like seeing things that aren't there. Researchers surveyed 54 adults with Parkinson's online to see how these perceptions relate to mood, sleep, and t…
Matched conditions: PERCEPTION
Sponsor: Boston University Charles River Campus • Aim: Knowledge-focused
Last updated May 11, 2026 20:52 UTC