Osteoarthritis (OA) degenerative or inflammatory? 296 pts w/ Knee OA (age 63 yrs, 2/3 had poor oral hygien, K&L grade 2, pain >40). Periodontitis in 62.5% & signif assoc w/ Xray K&L grade 4 (OR 5.39), poor oral hygiene (OR 34), dental visits (OR 8.54), brushing time (OR 21.9) https://t.co/xXIr2qxtt4