Research Article

Significance of Circulating and Crevicular Matrix Metalloproteinase-9 in Rheumatoid Arthritis-Chronic Periodontitis Association

Table 1

The demographic and clinical data of the studied individuals.

SubjectsNumberAge range (years)Sex ratio (M : F)

Control2135–587 : 14
Chronic periodontitis (CP)1439–686 : 8
Associations Rheumatoid arthritis-chronic periodontitis (RA-CP)1238–623 : 9
Rheumatoid arthritis (RA)1638–694 : 12