Effects of Mouthrinse on the Microbiome of the Oral Cavity and GI Tract

This study investigates how using mouthrinse affects the bacteria living in the mouth and gut (the microbiome). Researchers want to know if regular use of mouthwash changes the balance of these bacteria, which could have broader health implications. You may be eligible if: - You are 18 to 25 years old - You are male, or a non-pregnant, non-breastfeeding female of any race - You have at least 20 teeth (not counting wisdom teeth) - You are willing to attend all scheduled visits and be available for phone follow-up - Your gums are either healthy or bleed when you brush You may NOT be eligible if: - You have fewer than 20 teeth - You have taken antibiotics in the past 3 months - You are unable or unwilling to sign the consent form - You have a condition that the investigator believes would interfere with the study Talk to your doctor to see if this trial is right for you.