Those selected through this above process will be read an additional consent form; those agreeing to participate will be provided with a supply of their assigned rinse (and instructions on its use and handling/storage), or no rinse. Those in the three rinse groups will be asked to use the provided rinse twice per day after brushing and to save the empty bottles for collection by the health care worker. At the end of this first visit, women will additionally provide a venous blood sample to measure systemic inflammation markers and fluoride.