1. By G. Vineeth III MDS Eye Prosthesis
2. Contents • Introduction • History • Types of eye prostheses • Patient evaluation • Treatment planning – Techniques of impression – Techniques of fabrication – Methods of retention – Maintenance • Complications • Conclusion • References
3. Introduction Defects of the eye Marian Pauly MS, DNB, Giridhar A, MS, Iby P. Varghese. Ocular prosthesis. Kerala Journal of Opthalmology 2011; 23(4); 339-41 Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
4. History • Indians – 5600 BC • Iran – 2900 BC • Egyptians – 500 BC • Europeans – 1500 AD • Materials used Wikipedia: Internet Sanjayagouda B. Patil, Roseline Meshramkar, B. H. Naveen and N. P. Patil. Ocular prosthesis: a brief review and fabrication of an ocular prosthesis for a geriatric patient. Gerodontology 2008; 25: 57–62
5. Types of Eye prostheses Conformers Ocular prosthesis Orbital Prosthesis Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000. Sykes, Essop and Veres. Use of custom made conformers in the treatment of ocular defects. J Prosthet Dent 1999;82:362-5
6. Patient evaluation • For ocular defects – Prognosis estimation – Physical evaluation – Muscular evaluation – Desires and expectations of the patient – Counselling the patient • For orbital defects – Pre-operative evaluation better than post-operative – CT, MRI, FNAC useful. Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000. E. L. DaBreo, and David E. Schuller. Surgical and prosthetic considerations in the management of orbital tumors. J Prosthet Dent 1992; 67(1); 106-12
7. Treatment planning • Patient centered model • Multidisciplinary • Initial visit – determine treatment needs and confirm them with patient • Discuss these needs with team members – process and outcome • All the pre-requisites should be planned • Patient confirms regarding the procedure after consultation • Signed consent • Start treatment Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
8. Treatment planning - steps • Planning Retention • Moulage impression and working cast fabriction • Pattern fabrication and try-in • Craniofacial implants placement followed by impression • Cast modification • Pattern try-in • Processing • Insertion and maintenance
9. Methods of retention • Extra-ocular muscles • Adhesives • Mechanical : Eyeglasses/Spectacles • Magnets • Implants: Bar and clip attachments or magnetic attachments Sameera R Shaikh, Pravinkumar G Patil, Santosh Puri. A modified technique for retention of orbital prosthesis. Indian Journal of Dental Research 2011, 22(6), 863-65 Neeraj Khatkar et al. Magnets in prosthetic dentistry. Journal of Dental Sciences & Oral Rehabilitation 2013; 12-13.
10. Modified retention Sameera R Shaikh, Pravinkumar G Patil, Santosh Puri. A modified technique for retention of orbital prosthesis. Indian Journal of Dental Research 2011, 22(6), 863-65
11. Modified retention Gunjan Pruthi, Veena Jain & Swati Sikka. A Novel Method for Retention of an Orbital Prosthesis in a Case with Continuous Maxillary and Orbital Defect. J Ind Prosthodont Soc 2010; 10(2):132–136
12. http://www.ocularist.org/resources_surgical_procedures.asp; American society of ocularists: Internet
13. Techniques of impression • Stock tray impression technique Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
14. Techniques of impression • External tray impression technique Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
15. Techniques of impression Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
16. Techniques of impression 3 D Laser Scanning 3 D Optical Scanning 3 D Image A. M. Bhat. Recent advances in the modelling of extraoral defects. J Ind Prosthodont Soc 2005; 5(4); 180-184
17. Techniques of fabrication • Paper Iris Disk technique Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
18. Techniques of fabrication • Black Iris Disk technique Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
19. Techniques of fabrication Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000.
20. Color matching Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000. Armamentarium Color formulation and mixing machine Spectrophotometer
21. Rapid prototyping Ing Andreas Gebhardt. Textbook; Short course on rapid prototyping. 2010
22. Procedure
23. Procedure
24. Recent trend – Bionic Eye
25. Maintenence • Adjustment to the prosthesis • Period of wear • Removal and replacement • Cleaning • Recall G. R. Parr, B. M. Goldman, and A. 0. Rahn. Postinsertion care of the ocular prosthesis. J Prosthet Dent 1983; 49(2); 220-224
26. Complications • Tissue irritation • Inadequate peri-orbital support • Recurrence of tumor • Implant exposure • Conjunctival thinning • Discharge • Pyogenic granuloma formation (excess healing tissue formation), • Rarely persistent pain or discomfort
27. Conclusion To meet challenges and surpass them is the basic means survival of the fittest. With efficiency and uncompromising efforts, this task becomes easier.
28. References • Marian Pauly MS, DNB, Giridhar A, MS, Iby P. Varghese. Ocular prosthesis. Kerala Journal of Opthalmology 2011; 23(4); 339-41 • Thomas D Taylor, editor. Clinical maxillofacial prosthetics. Quintessence Publishing Co; 2000. • E. L. DaBreo, and David E. Schuller. Surgical and prosthetic considerations in the management of orbital tumors. J Prosthet Dent 1992; 67(1); 106-12. • Sameera R Shaikh, Pravinkumar G Patil, Santosh Puri. A modified technique for retention of orbital prosthesis. Indian Journal of Dental Research 2011, 22(6), 863-65. • G. R. Parr, B. M. Goldman, and A. 0. Rahn. Postinsertion care of the ocular prosthesis. J Prosthet Dent 1983; 49(2); 220-224 • Sykes, Essop and Veres. Use of custom made conformers in the treatment of ocular defects. J Prosthet Dent 1999;82:362-5
29. References • Sanjayagouda B. Patil, Roseline Meshramkar, B. H. Naveen and N. P. Patil. Ocular prosthesis: a brief review and fabrication of an ocular prosthesis for a geriatric patient. Gerodontology 2008; 25: 57–62 • Wikipedia: Internet • Neeraj Khatkar et al. Magnets in prosthetic dentistry. Journal of Dental Sciences & Oral Rehabilitation 2013; 12-13. • Gunjan Pruthi, Veena Jain & Swati Sikka. A Novel Method for Retention of an Orbital Prosthesis in a Case with Continuous Maxillary and Orbital Defect. J Ind Prosthodont Soc 2010; 10(2):132–136 • http://www.ocularist.org/resources_surgical_procedures.asp; American society of ocularists: Internet • A. M. Bhat. Recent advances in the modelling of extraoral defects. J Ind Prosthodont Soc 2005; 5(4); 180-184 • Ing Andreas Gebhardt. Textbook; Short course on rapid prototyping. 2010
No comments:
Post a Comment