1. The pa-on is a new perio probe that allows for fully automated periodontal screening with standardized, precise measurements integrated into dental software. 2. Periodontal disease is very common, usually painless, and can lead to tooth loss if left untreated. Catching it early through screening like PSR is important for treatment and reversal of damage. 3. The ADA recommends PSR for early disease detection and patient education. Proper documentation of PSR with a tool like pa-on shows that a dentist is properly evaluating periodontal status.