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Root Preparation
Prepare flat root face just above gingival level.
Prepare a post cavity Ø 1.14mm, depth up to 7.00mm.
Counterbore cavity Ø 2.5mm, depth 2.00mm
using Root Face Drill.
Prepare a post cavity Ø 1.14mm, depth up to 7.00mm.
Counterbore cavity Ø 2.5mm, depth 2.00mm
using Root Face Drill.
Undercut counterbore cavity with an inverted cone bur (#5).
Fit the Post Keeper in the root
With suitable dentine/metal
Bonding adhesive material.
A Seating Tool is used for safe
handling and is removed an
axial press-sideways slide action
With suitable dentine/metal
Bonding adhesive material.
A Seating Tool is used for safe
handling and is removed an
axial press-
Fit the cast Insert Keeper with a suitable dentine/metal
bonding adhesive material.
A Seating Tool is used for safe handling.
Enlarge the counterbore cavity for laboratory wax-up of a
burn-out post Insert Keeper.
Use an impression technique to prepare a laboratory model.
The surface element of the Insert Keeper is left exposed
above the wax-up for retention in the casting investment.
Use precious metal alloy with casting temperature of
± 800°C.
Remove surface oxide deposit with rubber polishing wheel.
Avoid damage to the surface finish.
Use an impression technique to prepare a laboratory model.
The surface element of the Insert Keeper is left exposed
above the wax-
Use precious metal alloy with casting temperature of
± 800°C.
Remove surface oxide deposit with rubber polishing wheel.
Avoid damage to the surface finish.
Fitting the Cast Insert Keeper
Fitting the Post Keeper
Adjust the post length so
that the keeper fully
that the keeper fully
contacts the root face.
Direct Fit Post Keepers
Cast Post Copings with Insert Keeper
Use a suitable restorative material e.g. Composite/
ionomer to seal exposed root dentine and the outer
ionomer to seal exposed root dentine and the outer
conditioned surface of the keeper.
