Latar Belakang: Kuantitas fimA bakteri Porphyromonas gingivalis pada akumulasi plak periodontitis kronis perokok belum pernah diteliti di Indonesia. Tujuan: Menganalisis kuantitas fimA bakteri Porphyromonas gingivalis pada akumulasi plak periodontitis kronis perokok. Material dan metode: Pemeriksaan Poket Periodontal, Status Merokok, Indeks Plak, dan ekspresi fimA dengan RT-PCR terhadap 37 subjek. Hasil: Tidak terdapat perbedaan ekspresi fimA pada periodontitis kronis perokok dengan bukan perokok pada poket 4 mm (p=0.522), 5 mm (p=0.181) dan 6 mm (p=1.000). Indeks plak perokok lebih buruk dibandingkan dengan bukan perokok (PI 1-3=40,51%). Kesimpulan: Tidak ada perbedaan kuantitas fimA Porphyromonas gingivalis pada akumulasi plak periodontitis kronis perokok.

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Background: Porpyhromonas gingivalis fimA quantity in plaque accumulation of smoker with chronic periodontitis haven't been studied in Indonesia.

Objective: Analyzing Porpyhromonas gingivalis fimA quantity in plaque accumulation of smoker with chronic periodontitis.

Material and Methods: Pocket Deph (PD), Smoking Status, Plaque Index, and RT PCR fimA quantity examination of 37 subject.

Result: fimA quantity difference between smoker and non smokers in 4 mm PD (p=0.522), 5 mm PD (p=0.181) and 6 mm PD (p=1.000) wasn't significant. Smoker has higher plaque index compare to non smoker (PI 1-3=40,51%).

Conclution: There was no differences of fimA quantity in smoker with chronic periodontitis.