Crystal Clear Crown Forms - made of polyester foil. They are very strong and elastic, they do not break when you put them onto a tooth to be reconstructed.
If you are used to work with retainers (tensors), for Premolar and Molar Class II reconstructions, it is best to use AnGer Shaped Polyester Matrices. These matrices provide appropriate firm hold on the tooth without causing unnecessary deformations.
AnGer Tapes are offered in various widths and thicknesses of material. That makes them easier to fit into the interdental spaces. Choose the most comfortable size depending on the work done!