Abstract
Oral squamous cell carcinoma is one of the commonest head and neck malignancies with approximately 350000 cases reported annually and a mortality rate of 50% often attributed to late clinical presentation. Due to the close relationship between saliva bio-fluid and tumour lesions, optimizing salivary biomarkers for disease detection and screening provides a major new research direction in diagnostic oral oncology. As inter-tumour heterogeneity and intra-tumour heterogeneity are common within oral cavity neoplasms, it is unlikely that a single diagnostic or "risk-stratifying" saliva biomarker will suffice for universal translation to clinical practice. Therefore, this article highlights a number of promising saliva biomarker combinations for oral cavity cancer detection that require further research and validation to determine their true diagnostic potential.
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