Gariepy (corresponding author

composition associated with vitamin D receptor gene polymorphism in chronic periodontitis Abstract: The aim of this cross-sectional study was to examine the re-lationship between the composition of the subgingival microbiota and the vitamin D receptor (VDR) gene polymorphism in Brazilian adults with chronic periodontitis. The clinical parameters of probing depth, clinical attachment level, bleeding on probing, plaque accumulation and suppuration were measured in 60 Caucasian adults who were divided into two groups: 30 healthy individuals (control) and 30 with chronic periodontitis (ChP). Subgingival plaque samples were collected from 6 sites per subject and analyzed for 38 bacterial species using the Checker-board DNA-DNA Hybridization. DNA was obtained from the subjects’ epithelial cells by scraping the buccal mucosa and using a mouthwash containing 3 % of glucose. Polymorphism in the VDR gene was ana