Table 1. Study Subjects.

Subject	Age	Ethnicity	Sex	Periodontal health
Subject 1	36	African–American	Male	Healthy
Subject 2	34	Asian	Female	Healthy
Subject 3	38	African–American	Female	Healthy
Subject 4	30	Caucasian	Female	Healthy
Subject 5	24	Asian	Female	Healthy
Subject 6	29	Caucasian	Male	Healthy
Subject 7	28	Caucasian	Male	Healthy
Subject 8	34	Caucasian	Male	Healthy