Use this when the user asks whether Medicare covers dental work (cleanings, fillings, extractions, dentures, implants) or what Original Medicare does for teeth. Returns the statutory exclusion of Original Medicare (Social Security Act 1862(a)(12), 42 CFR 411.15(i)) and the narrow exceptions, each as a verbatim quote with its source URL and retrieval date from medicare.gov, the eCFR and the US Code. Medicare Advantage plans for 2027 and their dental limits plan by plan are not yet tracked; for a plan whose figures the user knows, it points to insurance_out_of_pocket. Phrasings: "will Medicare pay for my dentures", "is a tooth extraction covered by Part B", "¿Medicare cubre los implantes dentales?", "¿Medicare paga la limpieza dental?". Do not use for: diagnosis, treatment choice, a named insurer's plan price, dentist recommendations, countries other than the US and Canada. Observed market research with a source URL and period on every figure; not a quote, not medical advice.