Interim RPD.ppt - Interim Removable Partial Dentures

Download Interim RPD.ppt - Interim Removable Partial Dentures

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<ul><li><p>Interim Removable Partial Dentures</p></li><li><p>Interim Removable Partial DenturesShort period of timePrior to a definitive dentureAcrylic major connector, wrought wire clasps</p></li><li><p>IndicationsLarge pulps (cant fabricate bridge)Clinical crowns too shortNo usable undercuts</p></li><li><p>IndicationsChildren - permanent prosthesis would be quickly outgrownTemporary space maintenance (caries, trauma, congenitally missing teeth)</p></li><li><p>IndicationsTemporary time or financial constraintsSudden loss of teeth, before sufficient healing has occurred (accidents, after extractions)</p></li><li><p>IndicationsTransitional DentureTransition to a complete dentureTeeth need to be extracted but not immediately (medically compromised)Patient is not psychologically prepared</p></li><li><p>IndicationsTreatment DentureImprove a condition before a definitive denture</p></li><li><p>IndicationsTreatment DentureTissue conditioning</p></li><li><p>IndicationsTreatment DentureImplant healing</p></li><li><p>IndicationsTreatment DentureAlteration of vertical dimension / occlusionDetermine how patient will respond to changes (TMD)Surgical Splint Removal of palatal tori</p></li><li><p>Interim Prosthesis FabricationPreliminary impressionsDesign the definitive partial denture (interim denture will use similar design)</p></li><li><p>Interim Prosthesis FabricationOptional Step (preferred) Tooth preparations for a definitive RPD New alginate impression</p></li><li><p>Interim Prosthesis FabricationMaxillo-mandibular relationsArticulate casts</p></li><li><p>DesignClasps (Wrought wire 0.02)Circumferential</p></li><li><p>DesignClasps (Wrought wire 0.02)Ball claspsRest and retentive elements</p></li><li><p>DesignClasps (Wrought wire 0.02)Adams claspsRest and retentive elements</p></li><li><p>DesignBracingLingual/palatal major connector provides bracingContacts teeth at the heights of contour</p></li><li><p>DesignRestsUsually wrought wire Acrylic may be used over cingulum rest seatsLonger term use - cast retainers</p></li><li><p>DesignMajor ConnectorsFull palatal coverage increases strength &amp; stabilityExtend denture to first molarRetentive clasps embedded into major connector</p></li><li><p>Prescription WritingMark teeth to be extracted on the cast &amp; write the teeth number on the prescriptionDraw a line around the teeth where the cast should be surgerized</p></li><li><p>Prescription WritingSurvey the cast &amp; mark height of contour &amp; retention areas (0.02)Indicate type of retentive clasp, rest &amp; bracing</p></li><li><p>Prescription WritingIndicate where rests, retention arms &amp; bracing are to be placed, state tooth # &amp; surfaceDraw the outline of the denture on the castIdentify shade &amp; mould of teeth selectedState the type of occlusion required</p></li><li><p>AdjustmentCommonly adjust:</p><p>interproximal extensions (A)where clasp exits from resin (B)tissue undercuts (C)</p><p>(McCracken's Removable Partial Prosthodontics, 11th Ediion. Elsevier, 2005)</p><p>_1067586516.doc</p></li><li><p>FlipperSlang - No Clasps</p></li></ul>

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