A new study by scientists at Plymouth University has revealed for the first time the long-term effects of a behemoth mouthwash on the oral microbiome. Studies have shown that continuous use of mouthwash for a week alters the oral microbiome, reduces the pH of saliva, increases acidity and increases the risk of tooth damage. “There is a lack of surprising knowledge and literature behind the use of these products,” explains Raul Bescos, who led the research team. The wash-through mouthwash is widely used, but the study is limited to it with particular oral diseases, and most of it is done in vitro. “
Last year, the same team published a compelling study that showed how mouthwash can reduce blood pressure by about 60 percent. Studies have found that direct mouthwash after exercise can disrupt the activity of certain bacteria in the mouth. These bacteria produce metabolites that regulate blood pressure within hours of exercise.
The new study aims to study the effects of regular mouthwash on the oral microbiome by studying 36 subjects who received a placebo mouthwash for a week and then used a week’s of washtable mouthwash.
The researchers found that after seven days, the wash of bitai mouthwash significantly reduced the microbiodiversity in the mouth. In particular, mouthwash increases the number of neesto, streptococcus and staphylococcus, while reducing the number of line bacteria. The results also showed that mouthwash reduced the synthesis of oral nitrites, which previous studies have shown to be associated with improved acute blood pressure after exercise.
Overall, the pH in the mouth dropped one week after the subjects used mouthwash, suggesting that saliva became more acidic. It’s not clear what this means for dental health, but the researchers do point out that lower saliva pH is associated with desalting of tooth enamel and other dental problems. The study hypothesized may help treat saliva pH diseases such as gingivitis that are higher than normal alkaline.
Louise Bellfield, co-author of the new study, said: “In the past, we greatly underestimated the complexity of oral microbiome and the importance of oral bacteria. Traditionally, bacteria have been thought to be harmful and cause disease. But we now know that most bacteria, both in the mouth and in the gut, are essential for maintaining human health. “
It is important to note that, so far, this novel study has only been able to hypothesize how these mouthwash-induced changes in the oral microbiome affect people’s wider health. At this point, there is no evidence that individuals should stop using mouthwash or be concerned about their overall effects on cardiovascular health. However, the researchers do see this as the first step in exploring how mouthwash affects our oral microbiome and how this affects overall health.
Zoe Brooks, co-author of the study, concluded: “As dental clinicians, we need more information about how mouthwash changes the balance of oral bacteria, so we can prescribe them correctly.” Mouthwash is an important first step towards this goal. “
The new study was published in the journal Scientific Reports.