Anug / orthodontic courses by indian dental academy /certified fixed orthodontic courses by Indian dental academy
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Welcome to Indian Dental Academy The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats. Indian dental academy has a unique training program & curriculum that provides students with exceptional clinical skills and enabling them to return to their office with high level confidence and start treating patients State of the art comprehensive training-Faculty of world wide repute &Very affordable.
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Anug / orthodontic courses by indian dental academy /certified fixed orthodontic courses by Indian dental academy
- 1. INDIAN DENTAL ACADEMY Leader in Continuing Dental Education www.indiandentalacademy.com
- 2. Necrotizing ulcerative gingivitis is an infectious disease of the gingiva causing gingival bleeding, gingival ulceration and pain. www.indiandentalacademy.com
- 3. History Necrotizing ulcerative gingivitis had been recognized in the 4th century BC by Xenophon, who mentioned that Greek soldiers were affected with “sore mouth and foul smelling breath”. In 1778, Hunter described the clinical features of this disease and differentiated it from scurvy and chronic periodontitis. www.indiandentalacademy.com
- 4. Synonyms Vincent’s disease Fusospirochetal gingivitis Trench mouth Acute ulcerative gingivitis Necrotizing gingivitis www.indiandentalacademy.com
- 5. ETIOLOGY Role of bacteria • A specific infectious disease should be associated with a specific etiology. The bacterial etiology of Necrotizing ulcerative gingivitis provides one of our strongest examples of a primarily bacterial etiology in a periodontal disease. Plaut in 1894 and Vincent in 1896 first proposed this bacterial etiology. • They both reported that fusiform-spirochete bacteria flora were associated with lesions of NUG. www.indiandentalacademy.com
- 6. Loesche et al Constant flora Variable flora • P. intermedia Heterogeneous • Fusobacterium array of bacteria • Treponema www.indiandentalacademy.com
- 7. Role of host response •Nutritional def. •Alcohol/drug immunodeficiency abuse •stress www.indiandentalacademy.com
- 8. CLINICAL FEATURES Oral signs Punched - out , craterlike depressions at the crest of the interdental papillae Surface of craters covered by gray , psuedomembranous slough www.indiandentalacademy.com
- 9. Other clinical signs Spontaneous gingival hemorrhage Fetid odor Increased salivation www.indiandentalacademy.com
- 10. Punched out interdental papilla Lesions with progressive tissue destruction www.indiandentalacademy.com
- 11. Oral symptoms Lesions sensitive to touch Radiating , gnawing pain “Metallic” foul taste “Pasty” saliva www.indiandentalacademy.com
- 12. Systemic signs & symptoms High fever Lymphadenopathy Pulse rate Leukocytosis Loss of appetite www.indiandentalacademy.com
- 13. Clinical course Pindborg et al • Erosion of tip of papilla • Lesion extending to marginal gingiva • Lesion extending to attached gingiva • Exposure of bone www.indiandentalacademy.com
- 14. Horning and cohen • Stage 1 : necrosis of tip of papilla • Stage 2 : necrosis of entire papilla • Stage 3 : necrosis ext to gingival margin • Stage 4 : necrosis ext to attached gingiva • Stage 5 : necrosis ext to labial or buccal mucosa • Stage 6 : necrosis exposing alveolar bone • Stage 7 : necrosis perforating skin of cheek www.indiandentalacademy.com
- 15. Listgarten 1965 Bacterial zone Neutrophil rich zone Necrotic zone Spirochetal infiltration zone www.indiandentalacademy.com
- 16. Histopathology Surface epithelium replaced by meshwork of fibrin , necrotic epithelial cells , PMN’s etc Connective tissue is extremely hyperemic , with engorged capillaries and dense infiltration of PMN’s www.indiandentalacademy.com
- 18. DIAGNOSIS Clinical findings Bacterial smear Biopsy specimen www.indiandentalacademy.com
- 19. Clinical findings Gingival pain Ulceration Bleeding www.indiandentalacademy.com
- 20. Bacterial smear Differential diagnosis of ANUG from Diphtheria Thrush Actinomycosis Biopsy specimen Differential diagnosis of ANUG from Tuberculosis Neoplastic disease www.indiandentalacademy.com
- 21. Differential diagnosis Herpetic gingivostomatitis Chronic periodontitis Desquamative gingivitis Diphtheritic & syphilitic lesions Agranulocytosis www.indiandentalacademy.com
- 22. THANK YOU FOR WATCHING www.indiandentalacademy.com www.indiandentalacademy.com