Saliva has been used to detect caries risk, periodontitis, oral cancer, breast cancer, salivary gland diseases, and systemic disorders such as hepatitis. Of course, successful measurement of salivary analytics requires optimal collection, processing, and storage procedures and conditions
Oral samples include saliva, gingival crevicular fluid (GCF), oral swabs, and dental plaque. Recent years have seen an increasing interest in using oral fluids as diagnostic tools, especially whole or total saliva.