关键词: 微生物群落； 口腔微生物失调； 口腔健康与疾病； 犬

Abstract: The oral health of dogs has increasingly raised interest in recent years. The oral health not only influences dog's pleasing appearance and taking food，but also plays important roles in the general health. Similar to the intestine tracts，the oral cavities harbor complex assemblages of microorganisms in dogs. Various microbial communities maintain dynamic balance in different sites of the oral cavity，and constitute a complex oral micro ? ecosystem，the balance or imbalance of oral microbial community is closely related to the oral health and disease of dogs. This article summarizes the recent progress in the research of oral microbiota in dogs，including composition and distribution of oral microbes，the factors influencing the oral microbiota assemble，and relationship between oral microbiota and canine oral diseases，this article aim to promote the understanding of the complex and close relationship between canine oral microbes and between microbiota and oral environment，and also to provide an important theoretical basis for the diagnosis and prevention of oral diseases of dogs.

Key words: Microbial communities； Oral microbiome dysbiosis； Oral health and disease； Dogs