(as of Aug 04,2021 18:25:17 UTC – Details)
They are made of special corrosion-resistant steel with the thickness of 35 or 50 microns. There are 4 types: 50m solid, 35m solid, 50m soft and 35m soft.
Thick matrixes keep the form well, which in some cases does not allow the use of wedges when restoring the gingival margin or the arbor wall; Hard matrices are easier to introduce, however, their adaptation to the formation of a contact point is difficult.
Application:Sectional matrices with the various rings for interproximal lesions,with adequate isolation with wedging technique to separate the approximate surfaces of neighboring teeth during the restoration.
Convenient to Use:Thin matrixes(35 μm) are convenient to use for the restoration of small defects, thick ones – for the restoration of large carious cavities with destruction in the subgingival region.Hard matrices are easier to introduce.