1. Introduction
  1.1 Overview of oral health and respiratory diseases
  1.2 Objectives of the study
2. Literature Review
  2.1 Oral microbiota and respiratory infections
  2.2 Periodontal disease and systemic inflammation
  2.3 Previous research on the oral-systemic link in respiratory diseases
3. Methodology
  3.1 Review of clinical and epidemiological studies
  3.2 Analysis of oral and respiratory health parameters
  3.3 Exploration of potential mechanisms and pathways
4. Results
  4.1 Correlation between oral health indicators and respiratory outcomes
  4.2 Identification of potential risk factors and biomarkers
5. Discussion
  5.1 Implications for integrated dental and respiratory care
  5.2 Opportunities for preventive interventions
  5.3 Challenges in interdisciplinary collaboration