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A trained health worker looking inside the mouth with a light can find mouth cancer early; in India this cut deaths by a third among people who use tobacco or alcohol.
The Kerala cluster-randomised trial (Trivandrum Oral Cancer Screening Study, Lancet 2005) randomised 13 clusters with 191,873 people to three rounds of visual oral examination by trained health workers or to usual care; among tobacco or alcohol users, oral cancer mortality was reduced by about a third (rate ratio 0.66), a benefit sustained at 15 years, with no statistically significant effect in people without those risk factors. It remains the only randomised evidence for any oral cancer screening and underpins India's national programme of opportunistic oral visual examination for people over 30 in the non-communicable disease clinics. The USPSTF (2013) found insufficient evidence for screening asymptomatic adults in the US, where incidence is lower and increasingly driven by HPV in the throat rather than tobacco in the mouth. Dentists' routine examination is the de facto screen in high-income countries.
Systematic inspection and palpation of the oral mucosa under good light for leukoplakia, erythroplakia, ulcers and masses, with referral for biopsy.
Query for this technology: (TITLE:"Oral cancer visual screening" OR ABSTRACT:"Oral cancer visual screening") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about Oral cancer visual screening, not a curated reading list.
Shares Oral tongue and floor of mouth cancer, Buccal mucosa and gingivobuccal cancer (oral cancer in India), Global access and affordability roadmap: essential medicines and generics → biosimilars and frugal trials → reliance, pooling and homegrown innovation, Head and neck squamous cell carcinoma.
Shares Kerala oral cancer visual screening trial (Trivandrum), Buccal mucosa and gingivobuccal cancer (oral cancer in India), Head and neck squamous cell carcinoma.
Shares Oral tongue and floor of mouth cancer, Buccal mucosa and gingivobuccal cancer (oral cancer in India), Head and neck squamous cell carcinoma.
Shares Oral tongue and floor of mouth cancer, Buccal mucosa and gingivobuccal cancer (oral cancer in India).
Shares Visual inspection with acetic acid (VIA) for cervical screening, Global access and affordability roadmap: essential medicines and generics → biosimilars and frugal trials → reliance, pooling and homegrown innovation.
Shares Oral tongue and floor of mouth cancer, Buccal mucosa and gingivobuccal cancer (oral cancer in India), Global access and affordability roadmap: essential medicines and generics → biosimilars and frugal trials → reliance, pooling and homegrown innovation, Head and neck squamous cell carcinoma.
Shares Oral tongue and floor of mouth cancer, Buccal mucosa and gingivobuccal cancer (oral cancer in India), Head and neck squamous cell carcinoma.
Shares Buccal mucosa and gingivobuccal cancer (oral cancer in India), Global access and affordability roadmap: essential medicines and generics → biosimilars and frugal trials → reliance, pooling and homegrown innovation, Head and neck squamous cell carcinoma.
Open-source projects that implement or serve this technology, from OnCo's own catalogue: licence and last activity as the repository reported them on the day of the fetch. Listing is not endorsement; check the licence before reuse and the validation before clinical use.
A 3D-printed, motorised laboratory microscope from the University of Bath used for malaria and cervical cytology screening projects in low-resource settings.