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Fabrication of an Implant-Supported Prosthetic Ear
A Presentation by T. MARNEWICK
In partial fulfilment of the BTech: Dental Technology
Content
1. Patient’s history and background2. Possible treatment plans3. Most suitable treatment plan and
treatment plan of choice4. Laboratory procedures5. References
Patient’s History and Background
• Patient was involved in a motorcar accident in 1999
• Lost left ear and fractured left side of his mandible
• Undergone four operations
Patient’s History and Background cont.
• Internal implants were placed in the mandible
• Implants were rejected due to
active Hepatitis B
• Implants were removed
Patient’s History and Background cont.
• A prosthetic ear was made in 2000 by Mr. A Jansen a former student
• Due to active Hepatitis B implants could not be used
• Mechanical retention was used with aid of spectacles
• Patient has now recovered from Hepatitis B
• This year the prosthesis needs to be replaced
Possible Treatment Plan #1
• Placement of implants into the left side of patients’ skull
• Using a dolder bar attachment to attach prosthetic ear1
Possible Treatment Plan # 2
• Using old mechanical retention to keep prosthesis in place
• Fabricating a new ear prosthesis
Possible Treatment Plan # 3
• Fabricating a new prosthesis
• Using a medical adhesive for prosthesis retention.2
Most suitable treatment plan
• Implants with dolder bar attachment
Reasons:Excellent retention Maximum patient
confidencePatient comfort3
Laboratory procedures
• Impression arrives• Model is poured
with laboratory analogues
• Plastic sleeves attached to analogues
Laboratory procedures cont.
• Dolder bar waxed up• Wax bar removed from analogues• Wax bar invested and cast• Metal bar finished• Now the prosthesis can be made
Laboratory procedures cont.
• The ear is sculpted on the model
• The sculpted ear is tried on patient4
Laboratory procedures cont.
• Mould is made• Mould is packed• After
polymerization prosthesis is removed from mould
Laboratory procedures cont.
• Extrinsic colouring added
• Final fitment on patient3
Thank you
REFERENCES1. Hobskrik J. Watson R. Searson L. Introducing Dental
Implants. London: Churchill Livingstone. 2003:123-130.
2. Wardbooth P. Eppley B. Schemlzeisen R. Maxillo Trauma and Esthetic Facial Reconstruction. London: Churchill Livingstone. 2003: 445-459.
3. Taylor T. Clinical Maxillo Facial prosthesis.London:Quintessence publising Co. 2000:233-244,245-264.
4. McKinstry R. Fundementals of facial prosthesis.Arlington: ABI Professional publications. 1995:19-30,59-78,79-98,147-98.
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