Challenge: Pregnant, periodontal maintenance patient appointed with increasing periodontal measurements over the last two periodontal maintenance appointments. The goal of testing is to establish the cause for the increase of inflammation. Background: My 44-year-old periodontal maintenance patient with a regular recall and excellent home care consisting of electric toothbrushing 2 times per day, nightly flossing, and use of Waterpik™ 2 times per day presented for a maintenance appointment...