Denture repairs Midline fracture Midline fracture Repair of denture flange Repair of denture flange Repair of fracture denture tooth Repair of fracture.

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