On this week’s episode of Fast Facts - Perio Edition, we are going to shrink down and magic school bus into a furcation. For all my millennials out there, we all learned science with Ms. Frizzle, and today we're going to learn about the science of furcations by shrinking down and really exploring what we know about furcations.  Quotes:  “Yes, we do know that our maxillary and mandibular molars will present with furcations in the maxillary.” “Fun Fact the maxillary first premolar, 61% of the time, will also be bi-furcated.” 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/    Nield-Gehrig J. Advanced instrumentation techniques for root surfacedebridement.Journal of Practical Hygiene. 2004;13(3):19-22.http://www.perio.org/resources-products/pdf/management.pdf. Accessed August 25,2009.Scheid, RC.Woelfel’s Dental Anatomy Its Relevance to Dentistry. 7th ed.Philadelphia, PA: Lippincott Williams & Wilkins, 2007:205.