Introduction to Periodontics Prof Dr .EmanAbd El SattarTella Umm Al-Qura University Faculty of Dentistry
Periodontics Difinition: That branch of dentistry that deals with the diagnosis and treatment of disease and conditions of supporting and surrounding tissues of the teeth.
Periodontology: The scientific study of the periodontium in health and disease Periodontist: Dental practitioner who by virtue of special knowledge and training in the field limits his practice or activities to periodontics. Periodontitis: Inflammation of the supporting tissue of the teeth ientificstudyof
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Periodontium The tissues that invest and support the teeth including the: Gingiva / Alveolar Mucosa Periodontal Ligament Alveolar Bone Cementum.
Gingiva • Contour (marginal gingiva) Follows a scalloped outline on facial and lingual surfaces
Normal Periodontium Width of Keratinized gingiva (distance from gingival margin to mucogingival junction) Varies Individually
Gingiva Interdental areas occupies interproximal space Beneath tooth contact areas. shape depends on contact points between adjoining teeth. may take a pyramidal (tip of one papilla is located immediately beneath the contact point) shape; or “col” shape( a vally like depression that connect the facial and lingual papilla)
Gingival sulcus (crevice): Shallow fissure (space) between the marginal gingiva and the enamel or cementum. The clinical normal gingival sulcus in human is 2 to 3 mm, can be determined clinically with a periodontal probe (probing depth).
Periodontal ligament (PDL): The CT that surrounds and attaches roots of teeth to the alveolar bone. It consists of bundles of collagen fibers arranged into a network referred as principle fibers.
Attach tooth the bony housing an d to another tooth
Resist and resolve the forces generated by mastication, speech and deglutition
Adjust for structural changes associated with wear and aging through continuous remodeling and regeneration
Defined against the noxious external environment that are present in the oral cavity
Classification of Periodontal Disease
Classification of Periodontal Diseases I. Gingival Diseases. II. Chronic Periodontitis. III. Aggressive Periodontitis. IV. Periodontitis as a Manifestation of Systemic Diseases. V. Necrotizing Periodontal Diseases. VI. Abscesses of Periodontium. VII. Periodontitis Associated with Endodontic lesions. VIII. Development or Acquired deformities and Conditions
Classification of Periodontal Diseases. I. Gingivitis II. Chronic Periodontitis
Dental Plaque-Induced Gingival Diseases Plaque-Induced gingivitis: An inflammation of the gingiva resulting from dental plaque
Gingival DiseasesDental Plaque-Induced Gingival Diseases Marginal gingivitis: Involves the gingival margin and may include a portion of the contiguous attached gingiva.
Diffuse gingivitis: Affects the gingival margin, the attached gingiva and the interdental papillae
Clinical Features of gingivitis Erythema (redness) Edema(swelling) Absence of stippling Bleeding on probing or spontaneous.