Ivory Matrix Retrainer No. 12a

(with shields and lock)

Ivory Matrix Retainer No. 12a with extended holders, is also designed for upper teeth, such as Ivory No. 12.

With the clamping shields, there will be great results by straight tightening of the Matrix. It prevents any annoying sagging of the Retainers and thus, also keeps the Matrix in place.
Suitable Matrix are:

Molars No. 1 - 3
Premolars No. 4 - 6

ivory matrix retainer ms-12a