What Dentists Don’t Show You | A Root Canal From the Inside and Out

What actually happens in a root canal? We open up a molar in 3D to see the pulp, how bacteria get in, what happens if an infection is left alone, and every step of modern treatment: CBCT, the rubber dam, the operating microscope, apex locators, nickel-titanium files, sodium hypochlorite and EDTA, ultrasonic activation, gutta-percha and the crown. Then: does it hurt (the evidence says much less than you think), aftercare, and the complications dentists work hardest to prevent. *Question of the day:* files leave over a third of the canal walls untouched. So what matters most for success: the files, the fluids, or the final seal? Answer in the comments! Chapters 00:00 Intro 00:06 What actually happens in a root canal? 00:21 What is a root canal? 00:55 What causes it? 01:54 If it's left untreated 02:28 Inside the procedure 05:14 Does it hurt? 05:59 Aftercare 06:34 Complications, and how to avoid them 07:28 Question of the day 07:41 Outro Educational content only, not personal medical advice. Please see your dentist about your own teeth. All animation, illustration and music are original. #RootCanal #Endodontics #DentalWorks #TheTheoryOfEveryTech #CuriosityEngineered Sources:- Over 15 million teeth are treated and saved by root canals each year in the USA; causes include deep decay, repeated procedures, cracks and trauma. A mature tooth can survive without its pulp | AAE — https://www.aae.org/patients/root-can... Root canal treatment may take 1-2+ appointments; gum disease can also contribute. Painkillers such as paracetamol or ibuprofen may be used afterward | NHS — https://www.nhs.uk/tests-and-treatmen... Bacteria are central to pulp death and apical disease; classic germ-free animal research showed exposed pulps could heal without bacteria | Kakehashi et al. 1965 — https://www.unboundmedicine.com/medli... Pulp disease progresses through reversible/irreversible pulpitis, necrosis and apical periodontitis | ESE 2023 — https://onlinelibrary.wiley.com/doi/1... Untreated dental infections can rarely spread into deep neck spaces or the bloodstream; lower molars are a common source of Ludwig's angina | https://pmc.ncbi.nlm.nih.gov/articles... CBCT should be used selectively when conventional imaging is insufficient, following the ALARA principle | ESE 2019 — https://onlinelibrary.wiley.com/doi/1... Rubber dam isolation is considered standard practice; it reduces contamination and protects against swallowing or inhaling instruments | AAE — https://www.aae.org/specialty/wp-cont... Magnification substantially improves detection of additional canals; MB2 was found in about 26.5% by direct vision vs 60.4% with magnification | Evidence-Based Dentistry 2022 — https://www.nature.com/articles/s4143... Apex locators use electrical measurements to estimate working length, generally within about ±0.5 mm in most readings | https://pmc.ncbi.nlm.nih.gov/articles...