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Introduction In RemovablePartial Denture

Dr.Mohammad Ibrahim Al Sayed

16/2/1429

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Removable partial denture

Denture replaces one or more teeth in

the same arch. It can be removedfrom the mouth and replaced by the

patient

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Partially Edentulous patient

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Classification of partiallyedentulous arches

Kennedy method of classification

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kennedy

k. Class I k. Class II k. Class III k. Class IV

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Class IBilateral edentulous areas located posteriorto the remaining natural teeth.

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Class II

Unilateral edentulous areas located posteriorto the remaining natural teeth.

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Class III

A unilateral edentulous area with natural teethremaining both anterior and posterior to it

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Class IV

A single ,but bilateral (crossing the midline)edentulous area located anterior to theremaining natural teeth

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Indications for a Removable PartialDenture

1.To replace several teeth in the same quadrant or inboth quadrants of the same arch.

2.As a temporary replacement for missing teeth in achild.

3.To replace missing teeth for patients who do notwant a fixed bridge or implants.

4.For the patient who finds it easier to maintain good

oral hygiene.5.To serve as a splint to support periodontally involved

teeth.

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Contraindications for a RemovablePartial Denture

1.A lack of suitable teeth in the arch to support,stabilize, and retain the removable prosthesis.

2.Rampant caries or severe periodontalconditions that threaten the remaining teethin the arch.

3.A lack of patient acceptance for estheticreasons.

4.Chronic poor oral hygiene.

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Components of a Partial Denture

1.FrameworkThe cast metal skeleton that provides supportfor the remaining components of the

prosthesis.

2.ConnectorsJoin various parts of the partial together

Major connector

Minor connector

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Metal Framework

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3.Retainer

, it supports and providesclaspKnown as astability to the partial denture by partiallycircling an abutment tooth.

4.RestA metal projection designed to control theseating of the prosthesis.

5.Artificial teethConstructed from either acrylic or porcelain.

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Components of a Partial Denture

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Parts of the baseplate

1.Saddle

2.Connector

3. Occlusal rest

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Materials of the baseplate

1. Acrylic

2. Metal

3. Metal-acrylic

combination

(alloys used for partial denturefabricating: cobalt-chrome alloys,gold alloys type IV and titanium)

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Appointment Sequencing for aPartial Denture

Appointment 1: Records

Updated health and dental history.

Prophylaxis.Preliminary impressions.

Radiographs.

Photographs.

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Appointment 2: PreparationPrepare the teeth.

Take the final impression.

Take the occlusal registration.

Select the shade and mold of the teeth.

Prepare the laboratory prescription.

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Appointment 3: Try-inEvaluate the fit, comfort, and function ofthe appliance.

Evaluate the shade, mold, andarrangement of the teeth.

Take new occlusal registration.

Note any changes on the laboratoryprescription.

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Appointment 4: Delivery

- Placement of the partial denture by the patient.

- Check occlusion.

- Detect any pressure points.- Check retainers for tension on the natural

abutment teeth.

- Polish partial.

- Give patient home instructions.

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Home Care Instructions for a PartialDenture

- Store prosthesis in water when notwearing it.

- After eating, remove it from mouth and

brush or rinse the retainers, rests, andcomplete partial.- Brush and floss abutment teeth andnatural teeth to keep them free of food

debris and plaque.- Advise patient not to adjust the partialdenture.

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Appointment 5: Postdelivery checkEvaluate the fit.

Check the mucosa for pressure areas and

sore spots.Evaluate the function of the prosthesis.

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Thank you