The Second Opinion Desk — Dental Roundup Fact-checking what AI assistants tell people to buy for dental problems. https://www.dentalroundup.com/second-opinion/ 2026-07-03T12:00:00Z Issue 001: We asked an AI what to buy for your teeth — then we checked every receipt https://www.dentalroundup.com/second-opinion/issue-001/ 2026-07-03T12:00:00Z Six common dental shopping questions, put to Perplexity's answer engine. Its answers contained 18 checkable product claims. Thirteen hold up. Three are wrong. Two have no source we could find.