Fabrication of an Fabrication of an Implant-Retained Partial DentureImplant-Retained Partial Denture

By

Michael du Preez

In partial fulfilment of

BTech: Dental Technology

ContentsContents

HistoryClinical Treatment PlanPossible Technical Treatment PlanTreatment Option of ChoiceLaboratory ProceduresFinal PlacementReferences

HistoryHistory

13 year-old Swelling in left

area of mandible Possible malignant

tumor

HistoryHistory

Tumor removed Juvenile ossifying

fibroma

HistoryHistory

Mandibular bone loss

Dentition loss

HistoryHistory

Reconstruction Plate

Two premolars and three molars remained

HistoryHistory

Fibula free flap Segment of fibula

is removed

HistoryHistory

Part of reconstruction plate removed

HistoryHistory

• Fibula is removed• Formed and

attached15

HistoryHistory

Reconstructed Mandible

Stabilized with plates and screws

Clinical Treatment PlanClinical Treatment Plan

What type of implant? What can be performed with available

bone? How many implants?

Clinical Treatment PlanClinical 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 PlanClinical Treatment Plan

Biocompatible titanium

Implant Abutment

Clinical Treatment PlanClinical Treatment Plan

Implant is screwed or tapped in the bone14&8

Tissue sutured closed

Clinical Treatment planClinical Treatment plan

• Tissue over implant removed14

Abutment is placed on implant14&8

Selected attachment placement14

Possible Technical Treatment Possible Technical Treatment PlanPlan Bar attachment2&7

2 to 6 implants needed14

Support denture14

Relieves tissue14

Best suited for cases of severe bone loss14

Possible Technical Treatment Possible Technical Treatment PlanPlan 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 Possible Technical Treatment PlanPlan Screw-in fixed

bridge14

4-8 implants needed14

Non-removable14

Need sufficient bone14

Possible Technical Treatment Possible Technical Treatment PlanPlan Cemented fixed

bridge14

4-10 implants needed14

Natural appearance14

Easy to clean14

Possible Technical Treatment Possible Technical Treatment PlanPlan Magnetic

attachment1&3

2 to 3 implants needed14

Magnetic keeper heads connected to abutments6

Magnetic units incorporated in the denture6

Treatment Option Of ChoiceTreatment 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 ProceduresLaboratory Procedures

Surgical Stent4

Guides and indicate implant position4

Critical factor for ideal surgical and aesthetic results5

Laboratory ProceduresLaboratory Procedures

• Preliminary impression2

Special Tray fabrication2

Master Cast

Laboratory ProceduresLaboratory Procedures

Custom record blocks

Wax setup Fabrication of bar

attachment Processing and

finishing of denture

Laboratory ProceduresLaboratory Procedures

Final product 14

Clips incorporated in denture14

Bar attachment on the implants14

Final PlacementFinal Placement

SpeechAestheticsMasticationSelf-Esteem

Thank youThank you

ReferencesReferences

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.

ReferencesReferences

5.Taylor D. Clinical Maxillofacial Prosthetics, Tokyo, Quintessence Publishing Company, 2000: 189-203.

6.The Journal of oral impantology,vol12 no.1,1985,436-4417.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

200410.www.drshanaman.com, date accessed 10 September 200411.www.barryhenbestdds.com, date accessed 10 September

200412.Davidoff S.R. The Dental Implant Homepage,

www.dental-implants.com, date accessed 7 September 2004

ReferencesReferences

13.www.dental-implants.co.uk, date accessed 10 September14.The dental implant projects, www.implant4you.com, date

accessed 10 September 2004 15.www.ufhscj.edu, date accessed 9 September 2004