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Post removal
Types of post :
-Active threaded -Passive -Custom casted Cement used :-Traditional cement -bonded with a composite resin -Dentin-bonding agent -Propost use acid-etched metal posts that are bonded into the canal - heat generation with ultrasonic vibration may help to decrease retention of resin –cemented posts, - But concern for heat-generated periodontal ligament damage. Removal of casted post
-Cut encircling metal collar using a small round bur -Drill a channel around the post -Cur rest seat into core to support ultrasonic tip
Removal of screw post
-Walk ultrasonic tip CCW direction to unscrew post -Hand wrench unscrew and remove the loose post
-Removal of cemented post-walk ultrasonic around the post to destruct and damage the bond of cement between post and tooth structure .
-Part of the post should embedded inside the canal and the other part should appear occlussaly -If the coronal part appeared, it's easy to remove.
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