Introduction In Removable Partial Denture.ppt
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Removable partial denture
Denture replaces one or more teeth in the same arch. It can be removed from the mouth and replaced by the patient.
Partially Edentulous patient
Classification of partially edentulous arches
Kennedy method of classification
k. Class I
k. Class II
k. Class III
Bilateral edentulous areas located posterior to the remaining natural teeth
Unilateral edentulous areas located posterior to the remaining natural teeth.
A unilateral edentulous area with natural teeth remaining both anterior and posterior to it
A single ,but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth
Indications for a Removable Partial Denture
To replace several teeth in the same quadrant or in both quadrants of the same arch
.As a temporary replacement for missing teeth in a child.
To replace missing teeth for patients who do not want a fixed bridge or implants
.For the patient who finds it easier to maintain good oral hygiene.
.To serve as a splint to support periodontally involved teeth.
Contraindications for a Removable Partial Denture
A lack of suitable teeth in the arch to support, stabilize, and retain the removable prosthesis
or severe periodontal conditions that threaten the remaining teeth in the arch
.A lack of patient acceptance for esthetic reasons.
.Chronic poor oral hygiene.
Components of a Partial Denture
The cast metal skeleton that provides support for the remaining components of the prosthesis.
Join various parts of the partial together
Known as a clasp, it supports and provides stability to the partial denture by partially circling an abutment tooth.
A metal projection designed to control the seating of the prosthesis.
Constructed from either acrylic or porcelain.
Parts of the baseplate
. Occlusal rest
Materials of the baseplate
alloys used for partial denture fabricating: cobalt-chrome alloys, gold alloys type IV and titanium
Appointment Sequencing for a Partial Denture
Appointment 1: Records
Updated health and dental history.
Appointment 2: Preparation
Prepare the teeth.
Take the final impression.
Take the occlusal registration.
Select the shade and mold of the teeth.
Prepare the laboratory prescription.
Appointment 3: Try-in
Evaluate the fit, comfort, and function of the appliance.
Evaluate the shade, mold, and arrangement of the teeth.
Take new occlusal registration.
Note any changes on the laboratory prescription.
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.
Appointment 5: Postdelivery check
Evaluate the fit.
Check the mucosa for pressure areas and sore spots.
Evaluate the function of the prosthesis.
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