May 09, 2025  
2025-2026 College Catalog 
    
2025-2026 College Catalog

DHE 119 - Periodontology

2 Contact Hours, 2 Credits
2 lecture periods 0 lab periods


Survey of periodontology comprised of the etiology, diagnosis, and prognosis of periodontal disease. Includes tissues and microscopic anatomy of the periodontium, historical background, causes, microbiology and classification of periodontal disease, local and systemic contributing factors, clinical assessment, radiographic analysis, and evidence-based periodontal care. Also includes decision making during treatment planning, nonsurgical and patient’s role in periodontal therapy, maintenance therapy, research articles and applications, and new dental technology.

Information: Students must be admitted to the PCC Dental Hygiene program and obtain consent of the Dental Hygiene department before enrolling in this course.
Button linking to AZ Transfer course equivalency guide  

Course Learning Outcomes
  1. Demonstrate a comprehensive understanding of periodontal anatomy and physiology
  2. Apply periodontal classification systems to assess periodontal health and disease progression
  3. Explain the role of plaque biofilm and host immune response in periodontal disease
  4. Evaluate patient-specific risk factors and develop individualized treatment plans .
  5. Incorporate evidence-based practices in periodontal care and maintenance

Performance Objectives:
  1. Explain the nerve, blood, and lymphatic supply of the periodontium and recognize the microscopic anatomy of gingiva, root cementum, and alveolar bone.
  2. Utilize the AAP classification and epidemiological research to assess periodontal health and identify varying types and stages of periodontal diseases.
  3. Describe the structure, colonization, and control of plaque biofilm, identifying bacteria associated with periodontal health and pathogenic biofilm in disease progression.
  4. Describe the host’s immune response to periodontal pathogens and explain the inflammatory processes that contribute to periodontal tissue destruction.
  5. Recognize local factors that affect plaque retention and pathogenicity and describe systemic and genetic risk factors, including medications, that can influence periodontal health.
  6. Distinguish between plaque-induced and non-plaque-induced gingival diseases, chronic and aggressive periodontitis, and necrotizing periodontal diseases.
  7. Assess clinical periodontal exam data and interpret radiographic images to assess periodontal conditions and identify necessary treatment interventions.
  8. Use clinically relevant information to make informed treatment decisions, including diagnosis assignment, treatment sequencing, and obtaining informed consent.
  9. Assess nonsurgical periodontal therapy techniques, assess the outcomes of nonsurgical therapy, and develop patient education on effective self-care methods for periodontal health.
  10.  Develop individualized maintenance plans for periodontal maintenance therapy.
  11. Analyze comprehensive case studies and research articles to enhance understanding of periodontal treatment approaches and best practices.

Outline:
  1. Tissues of the Periodontium
    1. Nerve supply
    2. Blood supply
    3. Lymphatic system
  2. Microscopic Anatomy of the Periodontium
    1. Histology of body tissues
    2. Histology of the gingiva
    3. Histology of root cementum and alveolar bone
  3. The History of Periodontal Disease
    1. The periodontium in health and disease
    2. Classifications systems
    3. AAP classification for periodontal diseases
  4. Search for the Causes of Periodontal Disease
    1. Epidemiology: researching periodontal disease
    2. Control and progression of periodontal disease
    3. Risk factors for periodontal disease
  5. Microbiology of Periodontal Disease
    1. Bacteria in the oral environment
    2. Bacteria associated with periodontal health and disease
    3. Structure and colonization of plaque biofilms
    4. Mechanisms of periodontal destruction
    5. Control of plaque biofilms
    6. Saliva Testing Technology
  6. Host Immune Response
    1. Role of host response in periodontal disease
    2. Pathogenesis of inflammatory periodontal disease
  7. Local Contributing Factors
    1. Local factors that increase plaque biofilm retention
    2. Local factors that increase plaque biofilm pathogenicity
    3. Local factors that cause direct damage
  8. Systemic Contributing Factors
    1. Systemic risk factors for periodontitis
    2. Genetic risk factors for periodontitis
    3. Systemic medications with periodontal side effects
  9. Classification of Periodontal Diseases and Conditions
    1. Epidemiology: researching periodontal disease
    2. Control and progression of periodontal disease
    3. Risk factors for periodontal disease
  10. Gingival Disease
    1. Classification of gingival diseases
    2. Dental-plaque induced gingival diseases
    3. Non-plaque-induced gingival
    4. Lesions
  11. Periodontitis
    1. Chronic periodontitis
    2. Aggressive periodontitis
    3. Periodontitis as a manifestation of systemic disease
    4. Necrotizing periodontal diseases
    5. Developmental or acquired deformities and conditions
  12. Clinical Periodontal Assessment
    1. Periodontal screening examination
    2. Comprehensive periodontal assessment
    3. Clinical features that require calculations
  13. Radiographic Analysis of the Periodontium
    1. Radiographic appearance of the periodontium
    2. Use of radiographs for periodontal evaluation
  14. Evidence-Based Periodontal Care
    1. Role of evidence-based care in best practice
    2. Finding clinically relevant information
    3. Lifelong learning skills for best practice
  15. Decision Making During Treatment Planning
    1. Decisions related to assigning a periodontal diagnosis
    2. Decisions related to treatment sequencing
    3. Informed consent for periodontal treatment
  16. Nonsurgical Periodontal Therapy
    1. Nonsurgical instrumentation
    2. Decisions following nonsurgical therapy
  17. Patient’s Role in Nonsurgical Periodontal Therapy
    1. Patient self-care
    2. Tooth brushing and tongue cleaning
    3. Interdental care
  18. Periodontal Maintenance Therapy
    1. Procedures and planning for periodontal maintenance
    2. Disease recurrence and patient compliance
    3. Root caries as a complication during periodontal maintenance
  19. Case Studies and Research Articles and Applications