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Deutsche Version

Matrix Preparation
(enclosed version with integrated milling, non precious alloy)
 
11. Fit the matrix onto the patrix, block out the undercuts towards the jaw and apply a thin wax coat parallel around the matrix, leaving out the milling of the patrix. Seal the drill hole in the retention.
 
12. After duplicating, prepare the casting pattern as usual (leave out the patrix area from the waxing procedure) and shape a load distribution clasp to the milling of the patrix. The load distribution clasp can be free-ended at the buccal side (open or closed version).
 
13. Cast and prepare the casting pattern. Fit the load distribution clasp to the milling of the patrix. For electrolytic polishing protect the underside of the clasp by covering with wax.
Further processing as in step 10.
The matrix is retained mechanically in the denture acrylic.