Colgate Palmolive

This Phase 3 trial will test whether a toothpaste containing chitosan, a natural substance, can reduce plaque, gingivitis, and gum bleeding better than a standard fluoride toothpaste. About 90 adults aged 18-70 with good general health will brush with either the chitosan toothpas…

This study will test if a toothpaste with stannous fluoride can reduce bacteria on teeth, tongue, cheeks, and gums better than a regular toothpaste. About 100 adults with plaque and gingivitis will brush with one of the two toothpastes. The goal is to see which one controls bacte…

This Phase 3 trial compares three different toothpaste technologies for relieving tooth sensitivity (dentin hypersensitivity). About 132 adults with sensitive teeth will brush with one of three toothpastes: one with 8% arginine, one with 8% arginine plus zinc, or one with 5% calc…

This study tests how well three different toothpastes repair early tooth damage (enamel lesions) in 30 healthy adults aged 18-70. Participants wear a removable mouth device with human enamel pieces for 14 days per toothpaste, with breaks in between. Researchers measure mineral ga…

This study looks at how gum inflammation and the bacteria in your mouth interact with your body's immune system. Twenty healthy adults will use a special toothpaste and then stop brushing for a period to see how inflammation and bacteria change. The goal is to better understand t…