{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11471034","patent":{"patent_number":"US-11471034","title":"Method and device for distinguishing plaque and calculus","assignee":null,"inventors":[],"filing_date":"2020-01-28T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","G06T","A61B","G06T","G06T"],"num_claims":6,"abstract":"A method for distinguishing plaque and calculus is provided. The method is used in a device and includes the following steps: emitting, by a blue light-emitting diode, blue light to illuminate teeth in an oral cavity, wherein the blue light is used to generate autofluorescence of plaque and calculus on the teeth; sensing, by an image sensor, the autofluorescence of plaque and calculus; and distinguishing, by a processor, a plaque area and a calculus area on the teeth based on the autofluorescence."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for distinguishing plaque and calculus","description":"A method for distinguishing plaque and calculus is provided. The method is used in a device and includes the following steps: emitting, by a blue light-emitting diode, blue light to illuminate teeth i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11471034","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11471034","citation_suggestion":"Patentable. \"Method and device for distinguishing plaque and calculus\" (US-11471034). https://patentable.app/patents/US-11471034","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11471034","json":"https://patentable.app/api/llm-context/US-11471034","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:00:00.260Z"}