Pda Conference Dec 2008 Complete Denture Copying

8/3/2019 Pda Conference Dec 2008 Complete Denture Copying

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COMPLETE DENTURE COPYINGCOMPLETE DENTURE COPYING

Need, Benefits & A MethodNeed, Benefits & A Method

Fazal GhaniFazal GhaniBSc, BDS, MSc, FDSRCPSGlasg, PhDBSc, BDS, MSc, FDSRCPSGlasg, PhD

Khyber College of Dentistry, PeshawarKhyber College of Dentistry, Peshawar(Pakistan).(Pakistan).


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CONVENTIONAL CDs STATUS IN USA:CONVENTIONAL CDs STATUS IN USA:

Still a standard of care for edentulous.Still a standard of care for edentulous.

1/3 people > 65 are edentulous1/3 people > 65 are edentulous Edentulism to rise in the next 40 years.Edentulism to rise in the next 40 years.

Edentulism: A major health problem.Edentulism: A major health problem.

Significant No of CD wearers dissatisfied.Significant No of CD wearers dissatisfied. Not a single diagnostic group:Not a single diagnostic group:

Significant variations among them.Significant variations among them.

Different treatment modalities needed.Different treatment modalities needed.

Key elements for successful CDs:Key elements for successful CDs: Function, Phonetics, Esthetics & Comfort.Function, Phonetics, Esthetics & Comfort.

Achieving success: a complex task.Achieving success: a complex task.

Even not achievable with ISCDs (Fixed or Removable).Even not achievable with ISCDs (Fixed or Removable).


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CASE REPORT:CASE REPORT:

8585--Yrs lady wearing CDs made 20Yrs lady wearing CDs made 20--yrs ago.yrs ago. Initially happy with the restored appearance:Initially happy with the restored appearance:

Lip support, ToothLip support, Tooth--show, smiling, speech OK.show, smiling, speech OK.

Now complaining of eating difficulty.Now complaining of eating difficulty. Repeated repairs & relines made CDs ugly.Repeated repairs & relines made CDs ugly.

Flattened occlusal surfaces with 8 mm FWS.Flattened occlusal surfaces with 8 mm FWS.

Moderate vertical and horizontal ridge loss.Moderate vertical and horizontal ridge loss. Treatment Options Available:Treatment Options Available:

No Treatment Vs Correction in existing CDs.No Treatment Vs Correction in existing CDs.

Replacement CDs Vs ISCDs.Replacement CDs Vs ISCDs.


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Chosen Treatment:Chosen Treatment: Replacing CDs by Copying (Duplication).Replacing CDs by Copying (Duplication).

Need For existing CD Copying:Need For existing CD Copying:Aged elderly unable to learn:Aged elderly unable to learn:

new NM control of CDs different than existing CDs.new NM control of CDs different than existing CDs.

Benefits:Benefits: Enhanced patients satisfaction.Enhanced patients satisfaction.

Reduced time and cost involved.Reduced time and cost involved.

Good aspects incorporated into the new CDs.Good aspects incorporated into the new CDs.

Spare set of CDs provided for use as:Spare set of CDs provided for use as: Emergency set.Emergency set.

Research appliances.Research appliances.

Medication carrying appliances.Medication carrying appliances.


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ASPECTS OF CDs:ASPECTS OF CDs: Fitting Surface.Fitting Surface.

Anterior Tooth Position.Anterior Tooth Position.

Posterior Arch Width.Posterior Arch Width.

Tooth Mould & Shade.Tooth Mould & Shade.

Polished Surface Shape.Polished Surface Shape.

Jaw Registration.Jaw Registration.

Vertical Dimension.Vertical Dimension.

Occlusal Shape.Occlusal Shape.Whenever, problems exist with one or more ofWhenever, problems exist with one or more of

these aspects, CD copy method may be used forthese aspects, CD copy method may be used forreplacing the existing CDs.replacing the existing CDs.


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EVOLUTION IN CDSEVOLUTION IN CDSCOPY TECHNIQUES:COPY TECHNIQUES:

Modified WagnerModified Wagner 19701970JJ Prosthet Dent 1970; 24:111Prosthet Dent 1970; 24:111 Cup, Soap box, Double StockCup, Soap box, Double Stock

Imp Trays, Duplit Flask.Imp Trays, Duplit Flask.

Murray & WollandMurray & WollandNewcastle Dental SchoolNewcastle Dental School::

Denture DuplicationDenture Duplication

Flask DesignedFlask Designed


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First Clinical Visit:First Clinical Visit:

Pink Replica CDs Used to:Pink Replica CDs Used to:

Record JRs: Changes in OVD, CR, FaceRecord JRs: Changes in OVD, CR, Face--Bow Record.Bow Record.

Tooth shade mould selection if neededTooth shade mould selection if needed

Laboratory Procedures:Laboratory Procedures:

Mounting of CDs on Articulators:Mounting of CDs on Articulators:

TeethTeeth--setset--up on replica bases.up on replica bases.

Waxing up dentures for trial.Waxing up dentures for trial.

Second Clinical Visit:Second Clinical Visit:

TyingTying--in waxedin waxed--up CDs.up CDs.

Reline Impressions (closeReline Impressions (close--mouth method).mouth method).

Lab Procedures:Lab Procedures: Investing, Processing & Finishing CDs.Investing, Processing & Finishing CDs.

Third Clinical Visit:Third Clinical Visit:

Fitting CDs in mouth.Fitting CDs in mouth.


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EIGHT ASPECTS OF COMPLETE DENTURES:EIGHT ASPECTS OF COMPLETE DENTURES:

Fitting Surface.Fitting Surface.

Anterior Tooth Position.Anterior Tooth Position. Posterior Arch Width.Posterior Arch Width.

Tooth Mould & Shade.Tooth Mould & Shade.

Polished Surface Shape.Polished Surface Shape. Jaw Registration.Jaw Registration.

Vertical Dimension.Vertical Dimension.

Occlusal Shape.Occlusal Shape.


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Documents

Pda Conference Dec 2008 Complete Denture Copying