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Ocular prosthesis final 3

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Ocular prosthesis final 3

  1. 1. OCULAR PROSTHESIS An alternative technique INDIAN DENTAL ACADEMY Leader in continuing dental education
  3. 3. Ocular prosthesis is a modality of facial prosthesis that aims to repair total or partial ocular bulb losses or deformities.
  4. 4. The main goals are toRestore facial esthetics, Prevent eyelid collapse and deformity, Protect the socket against injuries caused by foreign bodies, dust and smoke, Re-establish the correct route of the lachrymal secretion to prevent accumulation in the cavity, and Preserve muscular tonus to avoid antisymmetrical alterations.
  5. 5. History
  6. 6. The eye was a symbol of life to the ancient world, particularly in Egypt, where bronze and precious stone eyes were placed on the deceased.  The Romans decorated statues with artificial eyes made of silver.
  7. 7.  Ambrose Paré (1510-1590), a famous French surgeon, was the first to describe the use of artificial eyes to fit an eye socket. These pieces were made of gold and silver.
  8. 8.  Enamel prostheses (1820s1890s) were attractive but were expensive and not very durable.  The introduction of cryolite glass, made of arsenic oxide and cryolite from sodiumaluminum fluoride (Na6A2F12), produced a grayish-white color suitable for a prosthetic eye.  German craftsmen are credited with this invention in 1835.
  9. 9.  To make these glass eyes, a tube of glass was heated on one end until the form of a ball was obtained. Various colors of glass were used like paintbrushes to imitate the natural color of the eye  The glass art form flourished in France and Germany where fabricating secrets were handed down from one generation to the next.
  10. 10.  The town of Lausche, Germany, had a particularly rich history in both decorative (doll eyes, Christmas ornaments) and prosthetic arts.  In the 19th century, German craftsmen ("ocularists") began to tour the United States and other parts of the world, fabricated eyes and fit them to patients.
  11. 11.  Stock eyes (or pre-made eyes) were also utilized. An "eye doctor" might keep hundreds of glass stock eyes in cabinets, and would fit patients with the best eye right out of the drawer.
  12. 12.  In the United States, eyes continued to be made of glass until the onset of World War II, when German goods were limited and German glass blowers no longer toured the United States.  The United States military, along with a few private practitioners, developed a technique of fabricating prostheses using oil pigments and plastics. Since World War II, plastic has become the preferred material for the artificial eye in the United States.
  13. 13.  By the mid-1940s, glass eyes were being replaced by plastic counterparts.  In Virginia, this was led by Joseph Galeski (of Richmond, Virginia),  Although American Optical and several military hospitals started to experiment and dispense plastic artificial eyes.
  14. 14.  An ocular implant replaces the lost volume of the natural eye. The first account of placing an implant in the socket, following enucleation, was in 1841.  Implants have been made of many different materials, shapes, and types throughout the years. It also helps the artificial eye to have some degree of movement
  15. 15. A Case Report
  16. 16. Examination Of The Socket
  17. 17. Examination of the stock eye
  18. 18. Indexed cast with stock eye
  19. 19. Putty cope
  20. 20.
  21. 21.
  22. 22.
  23. 23. Impression tray
  24. 24.
  25. 25.
  26. 26. Injecting the impression material
  27. 27. Final impression
  28. 28. Final impression
  29. 29. Double alginate technique
  30. 30. Double alginate technique
  31. 31.
  32. 32.
  33. 33. Stock eye shells
  34. 34.
  35. 35.
  36. 36. Wax try in
  37. 37. Flasking
  38. 38. Dewaxing
  39. 39.
  40. 40. Customizing the shade guide
  41. 41. Packing
  42. 42.
  43. 43. Finished prosthesis- External surface
  44. 44. Finished prosthesis– Tissue surface
  45. 45. Pre-prosthetic Post-prosthetic
  46. 46. Stock eye Custom eye
  47. 47. A custom ocular prosthesis Advantages – Improved adaptation to underlying tissues, – Increased mobility of the prosthesis, – Improved facial contours, and – Enhanced esthetics gained from control over the size of the iris, color of the iris and sclera. Disadsvantage – It is more expensive than a stock prosthesis, and several steps are required for its fabrication
  48. 48. 1. Never clean or soak your artificial eye in rubbing alcohol because it will crack and destroy the ocular prosthesis. 2. Remove the ocular prosthesis only as necessary. Too much handling can cause socket irritation and result in excessive secretions. 3. If you remove your ocular prosthesis, be sure to store it in water or soft contact lens saline solution. This will keep deposits from drying on the surface.
  49. 49. 4.To clean your prosthesis, use an antibacterial soap. Wash the eye between your fingertips. 5.If you wish to or need to rinse out the socket, use sterile saline with bulb syringe. 6.Any eye drops can be used with the artificial eye in place. 7.Visit at least once a year or more often to have your ocular prosthesis checked, cleaned and polished.
  50. 50. Conclusion The use of custom-made ocular prosthesis has been a boon to the patients. The esthetic and functional outcome of the prosthesis was far better then the stock ocular prosthesis. Although the patient cannot see with this prosthesis, it has definitely restored his self-esteem and allowed him to confidently face the world rather than hiding behind dark glasses.
  51. 51. Thank you For more details please visit