1. Introduction
  1.1 Background and Rationale
  1.2 Objectives of the Study
2. Literature Review
  2.1 Prevalence of Smoking and Oral Health
  2.2 Mechanisms of Smoking-Related Oral Health Damage
  2.3 Effects of Smoking on Periodontal Health
  2.4 Effects of Smoking on Oral Cancer
  2.5 Smoking Cessation Interventions and Oral Health
3. Methodology
  3.1 Study Design
  3.2 Participant Selection
  3.3 Data Collection
  3.4 Data Analysis
4. Results
  4.1 Impact of Smoking on Oral Microbiome
  4.2 Effects of Smoking on Immune Response in the Oral Cavity
  4.3 Smoking and Tissue Regeneration in the Oral Cavity
  4.4 Association Between Smoking Cessation and Oral Health Improvement
5. Discussion
  5.1 Implications of the Findings
  5.2 Limitations of the Study
  5.3 Future Research Directions