Interdental and subgingival microbiota affect the tongue microbial ecology and oral malodour in health, gingivitis and periodontitis

Oral malodor is often observed in gingivitis and chronic periodontitis patients, and the tongue microbiota is thought to play a major role in malodorous gas production, including Volatile Sulfur Compounds (VSCs) such as hydrogen sulfide (H2S) and methanethiol. This study aimed to examine the link between the presence of VSCs in mouth air (as a marker of oral malodour) and the oral bacterial ecology in the tongue and periodontal niches of healthy, gingivitis and periodontitis patients.

牙龈炎与慢性牙周炎患者常出现口腔异味，而舌部微生物群被认为在恶臭气体生成过程中发挥主要作用，此类气体涵盖硫化氢（hydrogen sulfide，H₂S）、甲硫醇等挥发性硫化物（Volatile Sulfur Compounds，VSCs）。本研究旨在探究口腔空气中的VSCs（作为口腔异味的标志物）与健康人群、牙龈炎患者及慢性牙周炎患者舌部及牙周生态位内的口腔细菌生态之间的关联。