Oral Microbiota as a Diagnostic Biomarker of Digestive Cancer: A Systematic Review

Abstract

Aim: This article aimed to review the association of oral microbiota with digestive cancer (DC).

Background: Oral microbiota is one of the most complex ecosystems in our body. The mouth, from which the digestive system starts, may be a source of an abundant taxonomic group of microbiotas that travel to the digestive system followed by growth, reproduction, and settlement, forming a complex microecological environment causing systemic and gastrointestinal (GI) disease.

Review results: A total of 14 articles were chosen for review. Most studies were case-control. Both positive and negative associations were seen between oral microbiome and DC.

Conclusion: Digestive cancer may be associated with distinctive oral microbial character.

Clinical significance: The present systematic review enlightens the risk of digestive carcinoma with oral microbiota that may act as a biomarker for early diagnosis of DC in a more comfortable, acceptable, and noninvasive way. How to cite this article: Ikbal SKA, Yadav SK, Mehrotra R, et al. Oral Microbiota as a Diagnostic Biomarker of Digestive Cancer: A Systematic Review. J Contemp Dent Pract 2023;24(11):902-911.

Keywords: Digestive cancer; Gastrointestinal cancer; Microbial dysbiosis; Oral microbiota Systematic review..