Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Cinnamomum loureirii, commonly known as Saigon cinnamon, has a long history of use in traditional medicine, particularly in Southeast Asia. In the context of oral health, various Cinnamomum species, including C. loureirii, have been traditionally used for their antimicrobial and anti-inflammatory properties. There are historical records and ethnobotanical reports indicating that extracts from the bark and leaves have been applied in folk remedies for oral ailments such as toothache, halitosis, and gum inflammation (gingivitis). The rationale behind its traditional use is largely attributed to the presence of cinnamaldehyde and other essential oils, which are believed to inhibit the growth of oral pathogens and reduce inflammation. However, scientific studies explicitly investigating the efficacy of C. loureirii for gingivitis are limited. Some in vitro research on related Cinnamomum species demonstrates antimicrobial activity against oral bacteria implicated in gingivitis, but direct clinical evidence in humans is lacking. Therefore, while its use for gingivitis is justified by traditional practices and some preliminary laboratory findings, it lacks robust scientific validation through well-designed clinical trials. As such, the evidence supporting its use for gingivitis is moderate from a traditional perspective but weak scientifically.

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