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Fabrication of an Implant-Retained Partial Denture By Michael du Preez In partial fulfilment of BTech: Dental Technology
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Contents History Clinical Treatment Plan Possible Technical Treatment Plan Treatment Option of Choice Laboratory Procedures Final Placement References
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History 13 year-old Swelling in left area of mandible Possible malignant tumor
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History Tumor removed Juvenile ossifying fibroma
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History Mandibular bone loss Dentition loss
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History Reconstruction Plate Two premolars and three molars remained
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History Fibula free flap Segment of fibula is removed
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History Part of reconstruction plate removed
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History Fibula is removed Formed and attached 15
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History Reconstructed Mandible Stabilized with plates and screws
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Clinical Treatment Plan What type of implant? What can be performed with available bone? How many implants?
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Clinical Treatment Plan Advantages Bone stabilization 12&9 Retrievability Improvement of function 13 Psychological improvement 10 Disadvantages Risk of screw loosening 11 Length of treatment plan 11 Multiple surgery Cost
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Clinical Treatment Plan Biocompatible titanium Implant Abutment
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Clinical Treatment Plan Implant is screwed or tapped in the bone 14&8 Tissue sutured closed
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Clinical Treatment plan Tissue over implant removed 14 Abutment is placed on implant 14&8 Selected attachment placement 14
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Possible Technical Treatment Plan Bar attachment 2&7 2 to 6 implants needed 14 Support denture 14 Relieves tissue 14 Best suited for cases of severe bone loss 14
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Possible Technical Treatment Plan Ball and socket attachment 3&14 2 to 4 implants needed 14 Better suited for lower 14 denture Simplest way 14 Ball type insert fits in o-ring type attachments 14
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Possible Technical Treatment Plan Screw-in fixed bridge 14 4-8 implants needed 14 Non-removable 14 Need sufficient bone 14
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Possible Technical Treatment Plan Cemented fixed bridge 14 4-10 implants needed 14 Natural appearance 14 Easy to clean 14
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Possible Technical Treatment Plan Magnetic attachment 1&3 2 to 3 implants needed 14 Magnetic keeper heads connected to abutments 6 Magnetic units incorporated in the denture 6
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Treatment Option Of Choice Bar attachment 2&14 Most suitable 2 Less expensive than cemented fixed bridge 14 Less trauma on tissue 14 Mechanical retention 4 Best suited for cases of sever bone loss 14
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Laboratory Procedures Surgical Stent 4 Guides and indicate implant position 4 Critical factor for ideal surgical and aesthetic results 5
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Laboratory Procedures Preliminary impression 2 Special Tray fabrication 2 Master Cast
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Laboratory Procedures Custom record blocks Wax setup Fabrication of bar attachment Processing and finishing of denture
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Laboratory Procedures Final product 14 Clips incorporated in denture 14 Bar attachment on the implants 14
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Final Placement Speech Aesthetics Mastication Self-Esteem
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Thank you
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References 1.Babbush C.A. Dental Implants, The Art And Science, London, W.B. Saunders Company, 2001:243-247. 2.Hobo S. Ichide, E. Garcia, L.T. Osseointegration and Occlusal Rehabilitation, Tokyo, Quintessence Publishing Company, 1990:153-207. 3.Jamanez-Lopez V. Oral Rehabilitation with Implant Supported Prostheses, Tokyo, Quintessence Publishing Company, 1998:269-273. 4.White G.E. Osseointegrated Dental Technology, Tokyo, Quintessence Publishing Company,1993:31-43.
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References 5.Taylor D. Clinical Maxillofacial Prosthetics, Tokyo, Quintessence Publishing Company, 2000: 189-203. 6.The Journal of oral impantology,vol12 no.1,1985,436-441 7.Dā Angelo J. Dr. Joseph Dā Angelo, www.joethedentist.com, date accessed: 15 September 2004.www.joethedentist.com 8.www.cunj.org, date accessed: 10 September 2004 9.www.microsurgeon.org, 2004, date accessed 15 September 2004 10.www.drshanaman.com, date accessed 10 September 2004 11.www.barryhenbestdds.com, date accessed 10 September 2004 12.Davidoff S.R. The Dental Implant Homepage, www.dental- implants.com, date accessed 7 September 2004www.dental- implants.com
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References 13.www.dental-implants.co.uk, date accessed 10 September 14.The dental implant projects, www.implant4you.com, date accessed 10 September 2004www.implant4you.com 15.www.ufhscj.edu, date accessed 9 September 2004
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