Latar Belakang: Merokokmempengaruhi peran host danbakteridalam patogenesis periodontitis kronis. Tujuan: Menganalisis efek merokok terhadap kebersihan mulut, perdarahan gingiva, dan jumlah bakteri P. gingivalis. Materi dan metode: Tiga puluh satu subjek laki-laki diperiksa indeks plak (PI), kalkulus (KI), kebersihan mulut (OHI-S), dan perdarahan papilla (PBI) kemudian diambil plak subgingiva untuk dihitung jumlah bakteri P. gingivalis. Hasil: Skor PI, KI, OHI-S, PBI, dan prevalensi bakteri P.gingivalis perokok lebih tinggi namun peningkatannya tidak bermakna. Kesimpulan: Merokok tidak mempengaruhi kebersihan mulut, perdarahan gingiva, dan jumlah bakteri P.gingivalis pada periodontitis kronis.

---

Introduction: Smoking affects host and bacteria roles in chronic periodontitis.

Objectives: Analyzing smoking effects towards oral hygiene, gingival bleeding, and P. gingivalis prevalence.

Material and methods: Thirty one male subjects were examined with plaque(PI), calculus (CI), oral hygiene (OHI-S), and papilla bleeding index (PBI). Sub-gingival plaque was taken to quantify P. gingivalis.

Results: Smokers had higher PI, CI, OHI-S, PBI score, and P. gingivalis was more prevalent, though the differences were not significant.

Conclusion: Smoking does not affect oral hygiene, gingival bleeding, and P. gingivalis prevalence in chronic periodontitis.