Part3.Extraction Of Teeth

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Part3.Extraction Of Teeth

  1. 1. Extraction of Teeth 1 Wang Yin Stomatology Department , General Hospital affiliated to Tianjin Medical University
  2. 3. Indication (1) <ul><li>foci of infections </li></ul><ul><li>nonvital pulps or pulpitis </li></ul><ul><li>severe periodontoclasia #4. Severe Periodontoclasia </li></ul><ul><li>not treatble by apioectomy </li></ul><ul><li>interfering with the placement of restorative appliances </li></ul><ul><li>not restorable by operative dentistry </li></ul><ul><li>impacted teeth #5. Impacted Teeth </li></ul>2
  3. 4. Severe Periodontoclasia
  4. 5. Impacted Teeth <ul><li>A tooth is spoken of as being impacted when its eruption is partially or wholly obstructed by bone or some other teeth. </li></ul>3
  5. 6. <ul><li>Mesialclination impaction </li></ul><ul><li>Distalclination impaction </li></ul><ul><li>Vertical impaction </li></ul><ul><li>Horizontal impaction </li></ul><ul><li>Inverted impaction </li></ul><ul><li>Buccalclination impaction </li></ul><ul><li>Lingualclination impaction </li></ul>4 Impacted Teeth
  6. 7. Etiology of Impacted Teeth <ul><li>Acute infectious fevers of childhood </li></ul><ul><li>Inflammation of the peridental membrane </li></ul><ul><li>Severe traumatism to the jaws </li></ul><ul><li>Ankylosis of the mandibular joint </li></ul><ul><li>Early extraction of deciduous teeth </li></ul>5
  7. 8. Local Effects of Impacted Teeth <ul><li>decay of the front tooth #9. Decay of Front Tooth </li></ul><ul><li>absorption of the root of the front molar </li></ul><ul><li>neuralgia </li></ul><ul><li>pericoronal infection #10. 幻灯片 10 </li></ul><ul><li>pericoronal abscess </li></ul><ul><li>cellulitis #11. Submasseteric Space Cellulitis </li></ul><ul><li>Osteomyelitis #12. Diagnosis of Impacted Teeth </li></ul>6
  8. 9. Decay of Front Tooth #8. Local Effects of Impacted Teeth
  9. 10. 7 Pericoronal Infection #8. Local Effects of Impacted Teeth
  10. 11. Submasseteric Space Cellulitis #8. Local Effects of Impacted Teeth
  11. 12. Diagnosis of Impacted Teeth <ul><li>Pantomogram </li></ul><ul><li>Dental film </li></ul>9
  12. 13. Pantomogram
  13. 14. Pantomogram
  14. 15. Indication (2) <ul><li>supernumerary teeth #16. Supernumerary Teeth </li></ul><ul><li>retained deciduous teeth #22. Retained Deciduous Teeth #15. Indication (2) </li></ul><ul><li>fractured crown </li></ul><ul><li>malposed teeth #23. Malposed Teeth #15. Indication (2) </li></ul><ul><li>roots #24. 幻灯片 24 </li></ul><ul><li>traumatizing soft tissues #26. Contraindications of the Extraction of Teeth </li></ul>10
  15. 16. Supernumerary Teeth
  16. 17. Supernumerary Teeth
  17. 18. Supernumerary Teeth
  18. 19. Supernumerary Teeth
  19. 20. Supernumerary Teeth
  20. 21. Supernumerary Teeth #15. Indication (2)
  21. 22. Retained Deciduous Teeth #15. Indication (2)
  22. 23. Malposed Teeth #15. Indication (2)
  23. 24. 11 Roots
  24. 25. 12 Roots #15. Indication (2)
  25. 26. Contraindications of the Extraction of Teeth 13
  26. 27. Local Contraindication <ul><li>Acute infection with an uncontrolled cellulitis </li></ul><ul><li>acute pericoronitis </li></ul><ul><li>acute infectious stomatitis </li></ul><ul><li>malignant disease </li></ul><ul><li>radio therapy (osteoradionecrosis) </li></ul>14
  27. 28. Systemic Contraindication <ul><li>diabetes </li></ul><ul><li>cardiac disease </li></ul><ul><li>blood dyscrasias </li></ul><ul><li>debility disease </li></ul><ul><li>steroid deficiency </li></ul><ul><li>fever of unexplained origin </li></ul><ul><li>nephritis </li></ul><ul><li>pregnancy or menstruation </li></ul><ul><li>senility </li></ul>15
  28. 29. Complication <ul><li>loosening of adjacent teeth </li></ul><ul><li>fracture of adjacent teeth and restorations </li></ul><ul><li>fracture of the buccal or labial plate </li></ul><ul><li>teeth or roots into the maxillary sinus </li></ul><ul><li>injury to the inferior alveolar nerve </li></ul><ul><li>postoperative hemorrhage </li></ul><ul><li>postoperative pain </li></ul><ul><li>dry soket </li></ul><ul><li>ecchymosis </li></ul>16
  29. 30. Postoperative Hemorrhage’ leading cause <ul><li>patient’s manipulation of the wound </li></ul><ul><li>foreign body in the socket </li></ul><ul><li>sharp bone margins and fractured soket walls </li></ul><ul><li>excessive granulation tissue </li></ul><ul><li>hypertension </li></ul><ul><li>clotting deficiency or vascular disorder </li></ul>17
  30. 31. Instrument <ul><li>Forceps </li></ul><ul><li>Elevator </li></ul><ul><li>Chisel </li></ul><ul><li>Mallet </li></ul><ul><li>Bur </li></ul><ul><li>goto the movie </li></ul>18
  31. 32. <ul><li>SEE YOU </li></ul>19

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