Application of stain of methylene blue as a diagnostic aid in the early detection and screening of oral cancerous and precancerous lesions.

Background: Periodic clinical examination of the oral cavity is the mainstay for the early detection of oral cancers which can be further aided by screening individuals with high-risk factors that will identify candidates who should receive treatment to prevent cancer progression and reduce patient mortality. Among the diagnostic tools, staining is advocated as a simple, inexpensive and fairly sensitive method.

Materials And Methods: The present study involved the examination of fifty patients suspected of oral malignant or precancerous lesions by methylene blue staining.