Consumers have long known that including dairy in their diets can help maintain healthy bones and even help promote weight loss. However, a recent study published in the January issue of the Journal of Periodontology, the official publication of the American Academy of Periodontology (AAP), demonstrated that routine intake of dairy products may also help promote periodontal health. The study analyzed the periodontal health of 942 subjects and determined that those who regularly consumed dairy products such as milk, cheese and yogurt had a lower instance of gum disease.
Research has suggested that periodontal disease may affect overall systemic health,” said study author Dr. Yoshihiro Shimazaki of Kyushu University in Fukuoka, Japan. “This study reinforces what much of the public already knows – the importance of dairy in helping achieve a healthy lifestyle, including a healthy mouth.”
Study participants aged 40 through 79 were examined on two periodontal parameters that can indicate gum disease, periodontal pocket depth (PD) and clinical attachment loss (CAL) of gum tissue. Researchers observed that subjects that consumed 55 or more grams of products containing lactic acid each day had a significantly lower prevalence of deep PD and severe CAL, therefore demonstrating a lower instance of periodontal disease.
Periodontal, or gum, disease is a chronic bacterial infection that affects the gums and bone supporting the teeth. Periodontal disease is a major cause of tooth loss in adults and has been connected to the development of heart disease and increased risk of stroke, and can contribute to complications from diabetes, respiratory disease or osteoporosis.
“Millions of adults already suffer from periodontal disease,” says Dr. Susan Karabin, DDS, President of the AAP. “By regularly consuming dairy products such as cheese and milk, something many people do each day, the risk of developing gum disease may decrease. These findings are important since maintaining healthy gums is a critical component to maintaining a healthy body.”
Journal abstract is available at: http://www.joponline.org/doi/abs/10.1902/jop.2008.070202
A
previous study showed the relationship between the intake of dairy
products and periodontitis, but the types of dairy products that confer
a benefit on periodontal health status have not been determined.
Methods: We analyzed 942 subjects aged 40 to 79 years as part of a comprehensive health examination of Hisayama Town, Fukuoka, Japan. Probing depth (PD) and clinical attachment loss (CAL) were used as the periodontal parameters. The dietary survey was conducted using a semiquantitative food frequency method. We examined the relationship between the intake of dairy products, such as milk, cheese, and lactic acid foods (yogurt and lactic acid drinks), and periodontal condition.
Results: The daily intake of lactic acid foods in subjects with generalized deep PD or severe CAL was significantly lower than that in subjects with localized deep PD or slight CAL. In multivariate linear regression analysis, the increased intake of lactic acid foods was associated significantly with lower mean PD (P = 0.002) and lower mean CAL (P = 0.003). In multivariate logistic regression analysis, the subjects eating ≥55 g lactic acid foods per day had a significantly lower prevalence of deep PD and severe CAL compared to those not eating these foods after adjusting for confounding variables; the odds ratios for generalized deep PD and severe CAL were 0.40 (95% confidence interval [CI]: 0.23 to 0.70) and 0.50 (95% CI: 0.29 to 0.87), respectively.
Conclusion: The routine intake of lactic acid foods may have a beneficial effect on periodontal disease.
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My conclusion: people who regularly eat yogurt may follow a more healthy lifestyle in general. Not enough information in this study to determine a cause-and-effect relationship.
For the record - I don't believe all Pharma studies are bad - all I want is to know how much was spent so I can approximate how much worth the study has.
:-)