Assessing Gingivitis of 3 Different Dentifrices Compared to a Negative Control.

Inclusion Criteria: * Be at least 18 years of age; * Provide written informed consent prior to participation and be given a signed copy of the informed consent form; * Be in general good health as determined by the Investigator based on a review of the health history/update for participation in the trial; If female of child-bearing potential, agree to use a medically approved method of birth control for the duration of the study. Acceptable methods of medically approved birth control include: at least 3 months of use of a hormonal birth control (including oral contraceptives, hormone birth control patch, vaginal contraceptive ring, injectable contraceptives, or hormone implant), double-barrier method, intrauterine devices, non-heterosexual lifestyle or agrees to use contraception if planning on changing to heterosexual partner(s), vasectomy of partner at least 6 months prior to screening. Not applicable to females not of child-bearing potential (females who have undergone a sterilization procedure including hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal for at least 1 year prior; * If female and of child-bearing potential, agree to immediately inform the study investigator if they become pregnant; * Have at least 20 gradable teeth; * Have mild to moderate gingivitis with a range of 10 to 70% bleeding sites; * Agree to return for scheduled visits and follow the study procedures; * Agree to refrain fr…