 Trial Design This is a prospective, longitudinal, observational, cohort study investigating young adults undergoing surgical extraction of a wisdom tooth with and without antibiotics post-operatively. The prescription of antibiotics will be based on clinical judgment based on case complexity, trauma and length of procedure. No randomization will be performed. Four observational time points will be undertaken for collecting 3 bacterial samples tongue coating, saliva and stool sample at: baseline, 1 week, 1 month and 6 months. 