1. Introduction
  1.1 Background and Context
  1.2 Objectives and Hypotheses
2. Literature Review
  2.1 Oral Health Factors in Neurodegenerative Diseases
  2.2 Periodontal Pathogens and Systemic Inflammation
  2.3 Cognitive Implications of Oral Microbiota
  2.4 Interdisciplinary Perspectives on Alzheimer's Disease
3. Methodology
  3.1 Research Design and Data Sources
  3.2 Selection of Study Population
  3.3 Cognitive and Oral Health Assessments
4. Results
  4.1 Correlation Analysis of Oral and Cognitive Measures
  4.2 Microbiological Findings and Inflammatory Markers
  4.3 Implications for Clinical Practice
5. Discussion
  5.1 Mechanistic Insights and Pathophysiological Links
  5.2 Clinical and Public Health Implications