On this week’s episode of Fast Facts - Perio Edition, Katrina Sanders, RDH continues the breakdown of the AAP 2017 Classification System Stage two.   Quotes:    “Maximum probing depth anywhere in the mouth will be 5 mm.”   “The idea being that if this is a 5mm pocket not due to hyperplasia, tissue overgrowth or fibrosis, but actually due to apical migration of the junctional epithelium, the clinician will observe anywhere between 3mm to 4mm of interdental clinical attachment loss.”   Resources:   DentistRX: https://www.dentistrx.com  More Fast Facts: https://www.ataleoftwohygienists.com/fast-facts/    Katrina Sanders Website: https://www.katrinasanders.com  Katrina Sanders Instagram: https://www.instagram.com/thedentalwinegenist/    Sources:   Papapanou, P. N., Sanz, M., Buduneli, N., Dietrich, T., Feres, M., Fine, D. H., ... & Tonetti, M. S. (2018). Periodontitis: Consensus report of workgroup 2 of the 2017 World Workshop on the Classification of Periodontal and Peri‐Implant Diseases and Conditions. Journal of periodontology, 89, S173-S182.