The aims of the present study will be identify 5 types of fimbrial subunit genotype strains
in smokers and nonsmokers with periodontitis, before and after periodontal therapy. Third two
periodontitis patients will be selected to these study, 16 nonsmokers and 16 smokers.
Clinical and microbiological parameters were evaluated at baseline and 3 months after
periodontal treatment: Plaque Index, Bleeding On Probe, Probing Depth, Gingival Recession and
Clinical Attachment Level. The prevalence of P. gingivalis and fimbrial subunit gene strains
will be determined by Polymerase Chain Reaction.