Synopsis

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

Lactococcus lactis is a probiotic bacterium historically utilized in the fermentation of dairy products. In the context of oral surgery, its use is supported by emerging scientific evidence, though not yet robust or conclusive. Several studies have investigated the potential of probiotics, including L. lactis, to reduce oral pathogens, modulate inflammation, and enhance wound healing following oral surgical procedures. For example, some clinical trials and in vitro studies suggest that L. lactis can inhibit the growth of pathogenic bacteria such as Streptococcus mutans and Porphyromonas gingivalis, both of which are implicated in postoperative infections and delayed healing. Furthermore, L. lactis has demonstrated immunomodulatory effects, potentially reducing local inflammation and supporting mucosal recovery.

Despite these promising findings, the majority of clinical evidence comes from small-scale studies or extrapolations from broader probiotic research rather than large, high-quality randomized controlled trials directly examining L. lactis in oral surgery patients. Systematic reviews of probiotics in dental and oral surgery contexts often include L. lactis among the strains studied, but typically conclude that more rigorous research is warranted before routine clinical use can be recommended. Therefore, while there is a scientific rationale and some preliminary validation for the use of Lactococcus lactis to support oral surgery recovery, the strength of evidence is currently moderate at best, meriting a cautious and adjunctive approach rather than standard practice.

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