denture repairs midline fracture midline fracture repair of denture flange repair of denture flange...
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Denture repairsDenture repairs
Midline fractureMidline fracture
Repair of denture flangeRepair of denture flange
Repair of fracture denture toothRepair of fracture denture tooth
Repair of posterior palatal sealRepair of posterior palatal seal
MIDLINE FRACTUREMIDLINE FRACTURE
TraumaTrauma Improper handlingImproper handling Fatigue failureFatigue failure Poorly designed denturePoorly designed denture Unrelieved areaUnrelieved area Arrangement of artificial teeth out side the ridgeArrangement of artificial teeth out side the ridge Labial frenum too close to the crest of the ridgeLabial frenum too close to the crest of the ridge
REPAIR OF MIDLINE FRACTUREREPAIR OF MIDLINE FRACTURE
Assemble the two halves and fix them Assemble the two halves and fix them together using sticky waxtogether using sticky wax
Hold with wooden sticks or metal rods- block Hold with wooden sticks or metal rods- block undercuts – separating medium – cast – undercuts – separating medium – cast – dovetails- apply autopolymerizing acrylic dovetails- apply autopolymerizing acrylic resinresin
N.B : midline fracture of mandibular arch N.B : midline fracture of mandibular arch requires repairing the labial flangerequires repairing the labial flange
MATERIALS USEDMATERIALS USED
Autopolymerizing acrylic resinAutopolymerizing acrylic resin
(lack of strength, porosity &discoloration)(lack of strength, porosity &discoloration)
Heat cured acrylic resinHeat cured acrylic resin
(risk of warpage)(risk of warpage)
TOOTH REPAIRTOOTH REPAIR
Select the toothSelect the toothPrepare of lingual surface Prepare of lingual surface Fix the tooth using waxFix the tooth using waxPlaster key (index)Plaster key (index)Eliminate the waxEliminate the waxThe use of autopolymerizing acrlic resinThe use of autopolymerizing acrlic resin
FLANGE REPAIRFLANGE REPAIR
*Flange,,,,, is present*Flange,,,,, is present
*Flange is absent*Flange is absent
None separated fractureNone separated fracture
Separating mediumSeparating medium
CastCast
Replace the denture on castReplace the denture on cast
Widen fracture lineWiden fracture line
Add autopolymerizing acrylic resinAdd autopolymerizing acrylic resin
REPAIR OF POSTERIOR REPAIR OF POSTERIOR PALATAL SEALPALATAL SEAL
Develop the desired thickness and Develop the desired thickness and extension of the seal ( green compound )extension of the seal ( green compound )
Separating medium & castSeparating medium & castRemove the used materialRemove the used materialAdd autopolymerizing acrylic resinAdd autopolymerizing acrylic resin