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InterimInterimTemporaryTemporary

ProvisionalProvisional

TransitionalTransitional

&&

TreatmentTreatmentRemovable Partial DenturesRemovable Partial Dentures

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Flipper: A Slang For RPD with no claspsFlipper: A Slang For RPD with no clasps

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Interim Removable Partial DenturesInterim Removable Partial Dentures

yy Short period of time.Short period of time.

yy Prior to a definitive denture.Prior to a definitive denture.

yy Acrylic major connector, wrought wireAcrylic major connector, wrought wire

clasps.clasps.

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IndicationsIndications

yy Temporary time or financial constraintsTemporary time or financial constraints

yy Sudden loss of teeth, before sufficientSudden loss of teeth, before sufficient

healing has occurred (accidents, afterhealing has occurred (accidents, after

extractions).extractions).

yy Need for Immediate restoration of aNeed for Immediate restoration of a

tooth.tooth.

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Indications (Contd):Indications (Contd):

Transitional Denture:Transitional Denture:

Transition to a complete dentureTransition to a complete denture

Teeth need to be extracted but not:Teeth need to be extracted but not:

Immediately (medicallyImmediately (medicallycompromised).compromised).

-- Teeth with doubtful / PoorTeeth with doubtful / Poorprognosis.prognosis.

Patient is not psychologicallyPatient is not psychologicallypreparedprepared

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IndicationsIndications

Treatment Denture:Treatment Denture: Improve a conditionImprove a conditionbefore a definitive denture (Tissuebefore a definitive denture (Tissue

conditioning).conditioning).

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Indications: Treatment Denture (Contd):Indications: Treatment Denture (Contd):

yy Treatment Denture: Implant healingTreatment Denture: Implant healing

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Indications: Treatment Denture (Contd):Indications: Treatment Denture (Contd):

Treatment DentureTreatment Denture

Altering vertical dimension / occlusionAltering vertical dimension / occlusion

yyDetermine how patient will respondDetermine how patient will respondto changes in bite (TMD).to changes in bite (TMD).

Surgical Splint: Removal of palatalSurgical Splint: Removal of palataltori.tori.

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Interim RPDF

abricationInterim RPDF

abricationyy Preliminary impressionsPreliminary impressions

yy Design the definitive partial dentureDesign the definitive partial denture (interim denture will(interim denture willuse similar design).use similar design).

yy Optional Step (preferred)Optional Step (preferred)

Tooth Preparations as for a definitive RPDTooth Preparations as for a definitive RPD New Impression (Alginate).New Impression (Alginate).

yy MaxilloMaxillo--Mandibular Relations (MMR).Mandibular Relations (MMR).

yy Mount Casts / Rcord Bases on Articulator.Mount Casts / Rcord Bases on Articulator.

yy Trial RPD.Trial RPD.

yy Process & Finish.Process & Finish.

yy RPD Insertion.RPD Insertion.

yy Review Visits.Review Visits.

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Adjustment:Adjustment:Commonly adjust:

Inter-proximal extensions (A):- where clasp originates from resin (B).- tissue undercuts (C).

McCracken's

Removable PartialProsthodontics.11th Edition. Elsevier, 2005)

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DesignF

eaturesDesignF

eaturesyy Clasps (Wrought wire 0.02 inch U/cut):Clasps (Wrought wire 0.02 inch U/cut):

Circumferential / Bar clasps.Circumferential / Bar clasps.

Ball clasps or Adams clasps.Ball clasps or Adams clasps.

yyRest and retentive elements.Rest and retentive elements.

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DesignF

eatures (Contd)DesignF

eatures (Contd)Bracing / Reciprocating Retentive Forces:Bracing / Reciprocating Retentive Forces: --

-- Lingual /Palatal major connectors:Lingual /Palatal major connectors:

-- Contacting teeth at or occlusal toContacting teeth at or occlusal toSurvey Lines or Heights of Contour.Survey Lines or Heights of Contour.

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Design Features (Contd):Design Features (Contd):

Rests:Rests:

Usually wrought wire (Hammered).Usually wrought wire (Hammered).

Acrylic may be used over cingulum rest seats.Acrylic may be used over cingulum rest seats.

Longer term useLonger term use -- cast retainers (Better)cast retainers (Better)

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Design Features (Contd):Design Features (Contd):

Major Connectors: Acrylic Resin.Major Connectors: Acrylic Resin.

Full palatal coverage increases:Full palatal coverage increases:

-- Increases strength & RPD stability.Increases strength & RPD stability.

Extend denture to first molar.Extend denture to first molar.

Clasp as wire embedded into acrylic majorClasp as wire embedded into acrylic majorconnector.connector.

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Lab Prescription WritingLab Prescription Writing

yy Mark teeth to be extracted on the cast.Mark teeth to be extracted on the cast.

yy Write the teeth number on theWrite the teeth number on the

prescription.prescription.

yy Draw a line around the teeth where theDraw a line around the teeth where the

cast should be surgerized (Trimmed).cast should be surgerized (Trimmed).

yy Survey the cast & mark height ofSurvey the cast & mark height of

contour.contour.

yy Mark retention areas (0.02Mark retention areas (0.02--inch U/cut).inch U/cut).

yy Indicate t e of retentive clas , rest &Indicate t e of retentive clas , rest &

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Lab Prescription Writing (Contd):Lab Prescription Writing (Contd):

yy Indicate where rests, retention arms &Indicate where rests, retention arms &

bracing are to be placed.bracing are to be placed.

yy State tooth # & surface for each:State tooth # & surface for each:

-- Rest, Clasp Retentive & Bracing arms.Rest, Clasp Retentive & Bracing arms.

yy Draw the outline of the denture on theDraw the outline of the denture on the

castcast

yy Identify shade & mould of teeth selected.Identify shade & mould of teeth selected.

yy State the type of occlusion required.State the type of occlusion required.

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Flipper SlangFlipper Slang -- No Clasp RPDsNo Clasp RPDs