Long-term training improves clinical signs of periodontal disease in type 2 diabetic patients: a pilot trial.

BACKGROUND: Systemic inflammation is related to diabetes mellitus. Periodontal disease may be considered a local manifestation of systemic inflammation in association with diabetes mellitus. Physical activity may have a positive effect on inflammatory diseases. We investigated the effects of exercise training on periodontal inflammation in diabetic patients. METHODS: Out of 69 diabetic patients with periodontitis, 40 subjects participated in a recreational training, while 29 subjects performed no training. All underwent a periodontal examination before and after 6.14+/-1.24 months and completed a dental hygiene questionnaire. RESULTS: In the long-term training group the following parameters decreased: hemoglobin A1c from 6.7+/-1.0% to 6.3+/-0.7% (P<0.007), papillary bleeding score 3 by 60% (P<0.0003), and the mean of all probing pocket depths 4 - 6 mm by 40% (P<0.0001). No significant weight changes and no improvements in oral health behavior were observed in either of the groups. No correlation between hemoglobin A1c or weight and periodontal parameters was found. CONCLUSIONS: A six-months recreational training was independently related to improved clinical signs of periodontal disease in diabetic subjects.