Periodontics an enhancing field has both the scientific and clinical spheres embedded within. This book Essentials of Clinical Periodontology and Periodontics is a learning textbook intended to serve the needs of dental undergraduate students and has been prepared in accordance with the existing syllabus in periodontology for undergraduate dental students. A methological approach and simplicity in language has been the most important objective of this second edition. Part I: The Normal Periodontium, Chapter 1: Anatomy and Development of the Structures of Periodontium, Chapter 2: Biology of Periodontal Tissues, Chapter 3: Periodontal Structures in Aging Humans, Part II: Classification and Epidemiology of Periodontal Diseases, Chapter 4: Classification Systems of Periodontal Diseases, Chapter 5: Epidemiology of Gingival and Periodontal Diseases, Part III: Etiopathogenesis, Chapter 6: Periodontal Microbiology (Dental Plaque), Chapter 7: Calculus and Other Etiological Factors, Chapter 8: Host Response: Basic Concepts, Chapter 9: Trauma from Occlusion, Chapter 10: Role of Systemic Diseases in the Etiology of Periodontal Diseases, Chapter 11: Oral Malodor, Chapter 12: Pathogenesis of Periodontal Diseases, Chapter 13: Periodontal Medicine, Chapter 14: Smoking and Periodontal Diseases, Chapter 15: Host Modulation in Periodontal Therapy, Part IV: Periodontal Pathology, Section 1: Gingival Diseases, Chapter 16: Defence Mechanisms of the Gingiva, Chapter 17: Gingival Inflammation, Chapter 18: Clinical Features of Gingivitis, Chapter 19: Gingival Enlargements, Chapter 20: Acute Gingival Infections, Chapter 21: Periodontal Diseases in Children and Young Adolescents, Chapter 22: Desquamative Gingivitis, Section 2: Periodontal Diseases, Chapter 23: The Periodontal Pocket, Chapter 24: Bone Loss and Patterns of Bone Destruction, Chapter 25: Chronic Periodontitis, Chapter 26: Aggressive Periodontitis, Chapter 27: Necrotizing Ulcerative Periodontitis, Refractory Periodontitis and Periodontitis as a Manifestation of Systemic Disease, Chapter 28: AIDS and the Periodontium, Part V: Treatment of Periodontal Diseases, Section 1: Diagnosis, Prognosis and Treatment Plan, Chapter 29: Diagnosis of Periodontal Diseases, Chapter 30: Determination of Prognosis, Chapter 31: Related Risk Factors Associated with Periodontal Diseases, Chapter 32: Various Aids Including Advanced Diagnostic Techniques, Chapter 33: Treatment Plan, Chapter 34: Rationale for Periodontal Treatment, Chapter 35: Periodontal Instrumentarium, Section 2: Periodontal Therapy, Chapter 36: Principles of Periodontal Instrumentation including Scaling and Root Planing, Chapter 37: Plaque Control, Section B: Surgical Therapy, Chapter 38: Principles of Periodontal Surgery, Chapter 39: Gingival Curettage, Chapter 40: Gingivectomy, Chapter 41: Periodontal Flap, Chapter 42: Osseous Surgery, Chapter 43: Mucogingival Surgery, Chapter 44: Furcation Involvement and Its Management, Chapter 45: Pulpoperiodontal Problems, Chapter 46: Splints in Periodontal Therapy, Chapter 47: Dental Implants: Periodontal Considerations, Chapter 48: Maintenace Phase (Supportive Periodontal Treatment), Chapter 49: Occlusal Evaluation and Therapy in the Management of Periodontal Disease, Chapter 50: The Role of Orthodontics as an Adjunct to Periodontal Therapy, Chapter 51: Periodontal: Restorative Inter-relationship, Chapter 52: Drugs Used in Periodontal Therapy, 53. Questionnaire for Clinical Case Discussion.