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AGING AND THE PERIODONTIUM.ppt
- 2. Presented by Dr. P. Srujan Kumar MDS Reader
- 3. AGING IS A SLOWING OF NATURAL FUNCTION, A DISINTEGRATION OF BALANCED CONTROL AND ORGANISATION THAT CHARACTERIZE THE YOUNG ADULT
- 4. GENERAL EFFECTS OF AGING AGING IS MANIFESTED AS :- TISSUE DESICCATION REDUCED ELASTICITY DIMINISHED REPERATIVE CAPACITY and ALTERED CELL PERMIABILITY
- 5. IN THE SKIN DERMIS AND EPIDERMIS ARE THINNED KERATINIZATION IS DIMINISHED BLOOD SUPPLY IS DECREASED and NERVE ENDINGS SHOW DEGENERATION THE ATROPIC SKIN CHANGES ARE MARKED IN FEMALES
- 6. BONE UNDERGOES OSTEOPOROSIS TRABACULAE ARE REDUCED CORTICAL PLATES ARE THINNED VASCULARITY IS REDUCED RESORPTION IS MORE PROMINENT and GENERALIZED OSTEOPOROSIS OCCURS MORE COMMONLY IN FEMALES
- 7. AGING - RELATED CHANGES IN THE PERIODONTIUM 1 GINGIVA and ORAL MUCOSA DIMINISHED KERATINISATION REDUCED AMOUNT OF STIPPLING INCREASED WIDTH OF ATTACHED GINGIVA DECREASED C T CELLULARITY INCREASED INTERCELLULAR SUBSTANCES
- 8. DECREASED OXYGEN CONSUMPTION and METABOLIC ACTIVITY THINNING OF ORAL EPITHELIUM INCREASED KERATINIZATION OF LIP and CHEEK MUCOSA ATROPHY OF CONNECTIVE TISSUE WITH LOSS OF ELASTICITY INCREASED NUMBER OF MAST CELLS
- 9. 2 PERIODONTAL LIGAMENT INCREASED NUMBER OF ELASTIC FIBRES DECREASED -- VASCULARITY -- MITOTIC ACTIVITY -- FIBROBLASTS -- COLLAGEN FIBRES INCREASED OSTEOSCLEROTIC CHANGES REDUCTION IN WIDTH OF PDL
- 10. 3 ALVEOLAR BONE OSTEOPOROSIS -- decreased capacity of bone to with stand normal masticatory forces DECREASED VASCULARITY REDUCED METABOLIC RATE & HEALING CAPACITY INCREASED BONE RESORPTION & DENSITY INCREASE CEMENTUM FORMATION -- the total width of cementum at 75 yrs is three times that at age of 11yrs
- 11. 4 TOOTH–PERIODONTIUM RELATION ATTRITION TOOTH ERUPTION & GINGIVAL RECCESION HYPERCEMENTOSIS
- 12. 5 MASTICATORY EFFICIENCY REDUCTION IN MASTICATORY EFFICIENCY IN AGED INDIVIDUALS IS THE RESULT OF -- UNREPLACED MISSING TEETH -- LOOSE TEETH -- POORLY FITTING DENTURES LEADING -- POOR CHEWING HABITS and -- DIGESTIVE DISTURBANCES
- 13. 6 CUMULATIVE EFFECTS GINGIVAL RECESSION TOOTH ATTRITION and REDUCTION IN BONE HEIGHT PLAQUE ACCUMULATION DEVOLOPS MORE RAPIDLY IN OLDER INDIVIDUALS THIS IS MAINLY DUE TO THE PRESENCE OF INCREASED GINGIVAL RECESSION
- 14. RAPIDLY DESTRUCTIVE PERIODONTAL DISEASE OCCUR IN YOUNG PATIENTS AND ARE ASSOCIATED WITH DEFICIENT LEOKOCYTE FUNCTION ELDERLY INDIVIDUALS HAVE SLOWLY PROGRESSIVE DISEASES THAT DOES NOT RESULT FROM IMPAIRED LEUKOCYTE FUNCTION OR IMMUNE MECHANISM