Fabrication of an
Implant-Retained Partial Denture
By
Michael du Preez
In partial fulfilment of
BTech: Dental Technology
Contents
History
 Clinical Treatment Plan
 Possible Technical Treatment Plan
 Treatment Option of Choice
 Laboratory Procedures
 Final Placement
 References

History

13 year-old
 Swelling in left
area of mandible
 Possible malignant
tumor
History

Tumor removed
 Juvenile ossifying
fibroma
History

Mandibular bone
loss
 Dentition loss
History

Reconstruction
Plate
 Two premolars and
three molars
remained
History

Fibula free flap
 Segment of fibula
is removed
History

Part of
reconstruction
plate removed
History
• Fibula is removed
• Formed and
attached15
History

Reconstructed
Mandible
 Stabilized with
plates and screws
Clinical Treatment Plan

What type of implant?
 What can be performed with available
bone?
 How many implants?
Clinical Treatment Plan

Advantages
• Bone
stabilization12&9
• Retrievability
• Improvement of
function13
• Psychological
improvement10

Disadvantages
• Risk of screw
loosening11
• Length of treatment
plan11
• Multiple surgery
• Cost
Clinical Treatment Plan

Biocompatible
titanium
 Implant
 Abutment
Clinical Treatment Plan

Implant is screwed
or tapped in the
bone14&8
 Tissue sutured
closed
Clinical Treatment plan
• Tissue over
implant removed14
 Abutment is
placed on
implant14&8
 Selected
attachment
placement14
Possible Technical Treatment
Plan

Bar attachment2&7

2 to 6 implants needed14
Support denture14
Relieves tissue14
Best suited for cases of
severe bone loss14



Possible Technical Treatment
Plan

Ball and socket
attachment3&14
2 to 4 implants needed14
 Better suited for lower14
denture
 Simplest way14
 Ball type insert fits in o-ring
type attachments14

Possible Technical Treatment
Plan

Screw-in fixed
bridge14

4-8 implants needed14
Non-removable14
Need sufficient bone14


Possible Technical Treatment
Plan

Cemented fixed
bridge14
4-10 implants needed14
 Natural appearance14
 Easy to clean14

Possible Technical Treatment
Plan

Magnetic
attachment1&3

2 to 3 implants needed14
Magnetic keeper heads
connected to abutments6
Magnetic units
incorporated in the
denture6


Treatment Option Of Choice

Bar attachment2&14


Most suitable2
Less expensive than
cemented fixed
bridge14
Less trauma on
tissue14
Mechanical retention4
Best suited for cases
of sever bone loss14



Laboratory Procedures


Surgical Stent4
Guides and indicate
implant position4
 Critical factor for ideal
surgical and aesthetic
results5
Laboratory Procedures
• Preliminary
impression2
 Special Tray
fabrication2
 Master Cast
Laboratory Procedures

Custom record
blocks
 Wax setup
 Fabrication of bar
attachment
 Processing and
finishing of
denture
Laboratory Procedures

Final product 14

Clips incorporated in
denture14
Bar attachment on the
implants14

Final Placement
Speech
 Aesthetics
 Mastication
 Self-Esteem

Thank you
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.
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.D’ Angelo J. Dr. Joseph D’ Angelo , www.joethedentist.com,
date accessed: 15 September 2004.
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.dentalimplants.com, date accessed 7 September 2004
References
13.www.dental-implants.co.uk, date accessed 10 September
14.The dental implant projects, www.implant4you.com, date
accessed 10 September 2004
15.www.ufhscj.edu, date accessed 9 September 2004