<qa>  What is the name of the dental hygienist that is blinded toInformation will be collected will include clinical condition, medications, age, gender, and smoking status. Once every day, digital pictures will be taken of each tooth takes approximately five minutes using a small intraoral camera to be evaluated for plaque by a dental hygienist that is blinded to frequency group assignment. Once every day, gingival crevicular fluid samples takes 30 seconds to look for factors that predict infection. 