Interesting study that definitely needs follow-up to see if it also applies to women. Nice news for coffee drinkers - that coffee consumption may have protective effects against gum disease. From Medical Xpress:
Coffee contains antioxidants. Antioxidants fight gum disease. Does coffee, then, help fight gum disease? Lead author and 2014 DMD graduate Nathan Ng said, "We found that coffee consumption did not have an adverse effect on periodontal health, and, instead, may have protective effects against periodontal disease."
Coffee consumption was associated with a small but statistically significant reduction in number of teeth with periodontal bone loss. Researchers concluded that coffee consumption may be protective against periodontal bone loss in adult males—the group examined in the study.